40TH WEAO Technical Pumping at Sudbury’s Wastewater Treatment Plant..... 50 Harmony Creek Water Pollution Control Plant, First Comprehensive Certificate of Approval for Sewage Works

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SPRING 2011 • Volume 6

40TH WEAO Technical Symposium and OPCEA Exhibition

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Departments

WEAO Board of Directors2010 - 2011

PRESIDENTDon Kemp, P.Eng., WWT & T Committee, AECOMT: 905/712-6989 Email: [email protected]

VICE-PRESIDENT Rosanna DiLabio, P.Eng., Govt. Affairs Committee Pinchin Environmental Ltd.T: 905/363-1319 F: 905/363-0681Email : [email protected]

PAST PRESIDENT Mark Rupke, P.Eng., Govt. Affairs, Pub. Ed. and R&B Committee, Veolia Water CanadaT: 905/868-9683 x24Email: [email protected]

DIRECTOR 2008-2011Gary Burrows, B.SC., C.I.M. Operations Challenge Committee, City of LondonT: 519/661-0350Email: [email protected]

Vanessa Chau, P.Eng., Asset Management & PEP Committee CH2M HILL Canada Ltd. T: 416/499-0090 x201 F: 416/499-4687Email: [email protected]

DIRECTOR 2009-2012Christine Hill, P.Eng., WWCS Committee, XCG ConsultantsT: 905/829-8880 X222 Cell: 416/606-8762Email : [email protected]

Michael Payne, Residuals & Biosolids Committee OMAFRA T: 519/271-4496 Cell: 519/272-3502Email: [email protected]

DIRECTOR 2010-2013Jeremy Kraemer, Ph.D., P.Eng., New ProfessionalsCH2M HILL Canada Ltd. T: 416/499-0090 x73667 Email: [email protected]

Graham Simpson, EHS&S and PEP CommitteesSEW-Eurodrive Company of Canada Ltd.T: 905/791-1553 Cell: 519/651-9657Email: [email protected]

TREASURERLarry Madden, C & M Environmental Technologies T: 705/725-9377 x229Email: [email protected]

EXECUTIVE DIRECTORCatherine Jefferson, Government Affairs Committee, WEAO T: 416/410-6933 x2 F: 416/651-7006Email: [email protected]

EXECUTIVE ADMINISTRATORJulie Vincent, WEAO T: 416/410-6933 x1 F: 416/410-1626Email: [email protected]

WEF DELEGATE 2008- 2011Vincent Nazareth, P.Eng., Government Affairs Committee, R.V. Anderson Associates Limited T: 416/497-8600 F: 416/497-0342Email: [email protected]

WEF DELEGATE 2009 – 2012Tim Constantine, P.Eng., WWT&T Committee, CH2M HILLT: 519/579-3501 x3268 Cell: 416/457-9837 Email: [email protected]

CWWA REPRESENTATIVE 2010-2013John Duong, P.Eng., Asset Management Committee Region of Halton T: 905/825-6000 x7961 F: 905/825-0267Email: [email protected]

OWWA REPRESENTATIVE 2010-2011Ray Miller, Clow CanadaT: 905/548-9604Email: [email protected]

PWO REPRESENTATIVERick Niesink, AScT., BA, BBA, Environmental Health, Safety & Security Committee, Region of Niagara Water & Wastewater ServicesT: 905/354-1545 Cell: 905/651-1048 Fax: 905/374-7188Email:[email protected]

OPCEA REPRESENTATIVEFrank Farkas, SPD Sales LimitedT: 905/678-2882 x257 Cell : 416/706-5527 Email: [email protected]

NEW PROFESSIONAL REPRESENTATIVEErin Longworth, P.Eng., M.Eng., New Professionals Committee, AECOM T: 905/886-7022 x7508 F: 905/886-9494Email: [email protected]

Influents is published by

on behalf of the WEAO Communications Committee

FeatUres

TA B l e o F C o N T e N T S

President’s message .........................................................................................................................................6executive Director’s Corner.....................................................................................................................8WeF Delegates Report ..............................................................................................................................10In The Spotlight: Joe Gemin ..................................................................................................................12New Professionals and Students Corner .....................................................................................14operator Profile: Brandon Brisco .....................................................................................................78Certification News ........................................................................................................................................80oPCeA Profile: Hans leygraaf .............................................................................................................81oPCeA News .................................................................................................................................................82Regulatory News ..........................................................................................................................................84engineers Without Borders ..................................................................................................................86CWWA update ............................................................................................................................................88Calendar of events ........................................................................................................................................90Professional Directory ..............................................................................................................................93Directory of Advertisers .........................................................................................................................94

Working for the Public Good – Volker masemann Retires ......................83

40th Annual WeAo Technical Symposium and oPCeA exhibition ...............................19

page 39

Evolution of Sewage Pumping Stations .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40

Variable Speed Pumping In Parallel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45

Optimizing Pumping at Sudbury’s Wastewater Treatment Plant .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50

Harmony Creek Water Pollution Control Plant, First Comprehensive Certificate of Approval for Sewage Works in Ontario .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52

Odour Control at Sewage Pump Stations in the City of London ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56

Sewage Pumping Station Capacity: Consider the Forcemain A Case Study of the Stevensville Sewage Pumping Station .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59

To Classify or Not To Classify Case Study - Hespeler Raw Sewage Pumping Station Design; Electrical Classification .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61

Kitchener WWTP Effluent Pump Station – Increased Efficiencies by Facility Siting and Design Modelling .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .66

Remote Monitoring and Control of Wastewater Pumping Stations in Chatham-Kent .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .71

Odour Control Design For Lift Stations/Pump Stations .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .74

Printed on paper certified by the Forest Stewardship Council® (FSC®). This magazine is printed with

vegetable oil-based inks. Please do your part for the environment by reusing and recycling.

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P R e S I D e N T ’ S m e S S A G e

Don Kemp, P.eng.Don Kemp, P.e

success due to the hard work of the Conference Committee, WEAO professional staff, OPCEA, PWO, Operators Challenge Committee, and all those involved in its planning and execution.

• We conducted our 2nd Annual Forum on Provincial Ministries and Waste-water Issues held at Queen’s Park on January 12, 2010. It included par-ticipants from the Ministries of the Environment, Research and Innova-tion, Education, Economic Develop-ment and Trade, Agriculture, Food and Rural Affairs, Environment Canada, OPCEA, and the OCSI.

• WEAO provided project manage-ment services for and published material on: AssessingtheFateandSignificanceofMicroconstituentsandPathogensinSewageBiosolids–Updateofthe2001WEAOReportonFateandSignificance,ReviewofPhosphorusRemovalatMunicipalSewageTreatmentPlantsDischarg-ingtotheLakeSimcoeWater-shed,andOptimizationGuidanceManualforSewageWorks. All are available on the WEAO website.

• We provided comments on the proposed federal effluent quality regulations that came out through the Canadian Council of Ministers of the Environment (CCME).

WEAO enters 2011 with a strong mandate for providing quality service to its members, a solid balance sheet, and a vision for the future. All of this is supported by dedicated and committed professional staff and volunteers. We look forward to getting together with you at our annual conference.

2010 IN ReVIeW

his past year was a good one for the Water Envi-ronment Asso-ciation of Ontario (WEAO). While many similar associations have been struggling to

keep members, WEAO has been able to not only maintain its numbers, but real-ize a slight increase. WEAO has a goal to be relevant to its members by delivering timely and contemporary opportunities for technology transfer, by maintaining a mutually beneficial dialogue with pro-vincial and other government agencies, and by partnering with other associations that have similar goals and objectives such as the Ontario Pollution Control Equipment Association (OPCEA), Ontario Water Works Association (OWWA), Canadian Water and Waste-water Association (CWWA), Ontario Coalition for Sustainable Infrastructure (OCSI), and others. I would like to high-light some of our accomplishments this year, but first would like to emphasize that our biggest accomplishment has been to maintain the course that has been set by previous Boards for fiscal responsibil-

ity and accountability, and for following our Strategic Plan. Some other specific accomplishments are detailed below.• INFLUENTS magazine continues

to exceed our expectations and pro-vides excellent technical and social content, as well as opportunities for our members to advertise products and services and showcase equip-ment and projects.

• We are well on the way to launch-ing our new website that will take us to a new level of functionality. Stay tuned!

• Our scholarship program has evolved and we continue to have increased interest. Again this year, we were able to raise funds to sup-port the program and award our target dollar amount.

• Our student chapters have increased to 12, and we are now partnering with OWWA to support new chap-ters that wish to have the broader water and wastewater involvement. We also continue to seek opportuni-ties to collaborate with OWWA, recognizing our shared mandate for the protection of public health.

• Once again, our annual conference and equipment exposition was a

6 Spring 2011INFlueNTS Click HERE to return to Table of contents

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e x e C u T I V e D I R e C T o R ’ S C o R N e R

ater Envi-ronment Association of Ontario’s (WEAO’s) Govern-ment Affairs Committee

hosted its third Government FORUM on January 20, 2011 at Queen’s Park. Participation was extended to a variety of provincial and federal government ministries and departments as well as the WEAO Board, Government Affairs Committee, committee chairs, and the Board of the Ontario Pollution Control Equipment Association (OPCEA).

The FORUM started with a round table introduction to provide attendees with an overview of who was partici-pating in the day. Don Kemp, WEAO’s president provided an overview of the WEAO organization, while stressing the skill and expertise embodied within the WEAO committees.

Tonia Van Dyk, the 2011 OPCEA vice-president, presented an overview of the organization, how OPCEA and WEAO are linked, and member inter-ests related to government affairs.

Carl Bodimeade, chair of the Ontario Coalition for Sustainable Infrastructure (OCSI), provided an update on the status of the organization formed to serve as one voice to government on issues related to sustainable infrastructure.

Representatives speaking from government were from various sec-tions of the Ministry of the Environ-ment (Northwestern Region lead on Wastewater, Land and Water Policy, Approvals, etc.), Ontario Region of Environment Canada, Ministry of Education, Ministry of Research and Innovation, and the Ministry of Eco-nomic Development and Trade.

The specific presentations are avail-able on the WEAO website, as is the list of participants. This third FORUM pro-vided attendees an introduction to new legislation and plans to move the Open for Business agenda forward, as well as the status of developing legislation that will impact all wastewater facilities as a

result of a new FisheriesAct regulation.The proposed Federal FisheriesAct

regulation received more than 180 sub-missions and 1000 comments. Environ-ment Canada is now working through these comments to see where and what can be addressed. This has meant that the regulation has not gone to Gazette as originally planned, and it may be another couple of months before this happens. The Canadian Council of the Ministers of the Environment (CCME) Municipal Wastewater Effluent Strategy endorsed by Ministers is now at the stage that will result in agreements with the federal government and each of the provinces/territories endorsing the strategy. Ontario is reviewing areas that will require changes in its management of wastewater. There were a number of questions related to timelines and components that would be addressed through the One Window approach.

The Ministry of Economic Develop-ment and Trade spoke about opportuni-ties world-wide relative to the need for wastewater technology and services. This group entertains a number of del-egations throughout the course of the year. There was discussion about the potential of delegations attending the WEAO annual conference to be taken on plant tours, to learn about work going on in Ontario, and to touch base with equipment suppliers.

There was a discussion about the need for technology that aided in reduc-tions of phosphorous (e.g., Lake Simcoe Watershed) that have been proven to work, and are accepted by the Ministry of the Environment. WEAO, OPCEA and Ministry of the Environment staff will look at the issues and identify how we might address these needs.

The Ministry of the Environment provided an overview of the Modern-ization of the Approvals process and indicated areas where technical experts are required to comment on specific activities or sectors in the development of guidance for approvals (registry versus approvals). They are trying to be more open and transparent in the process. We are now able to view over 42,000 approvals online. Online guid-

ance with examples will also aid in applying for the approvals. WEAO will continue to participate in the roundta-ble discussions MOE has been holding as the Modernization process proceeds.

There was an excellent overview of the WaterOpportunitiesandWaterConservationAct, and discussion as to the intent of the legislation and some of the issues identified, e.g., duplication of planning between municipalities and this Act; the role of the Ontario Clean Water Agency (OCWA); and the current water conservation programs that con-tinue to cause increases in water fees.

A representative from the Approvals section of the MOE spoke about energy from biomass (wastewater sludges, biosolids, etc.) and the approval process covering this issue. The approval is very comprehensive in aspects covered.

The Ministry of Research and Innovation outlined its network of contacts through universities, colleges and business that have been formed to identify and provide research centres related to wastewater.

The Ministry of the Environment’s lead region’s (Northwest) representa-tive spoke about a couple of initiatives underway related to municipal wastewa-ter. They included optimization studies done in the Grand River Watershed, the establishment of the Ontario Criti-cal Infrastructure Assurance Program (OCIAP), and the new electronic moni-toring data collection program that will affect all treatment facilities.

The Ministry of Education repre-sentative spoke about the curriculum from kindergarten to grade 12, as well as where wastewater was dealt with in the curriculum. She also spoke of

WeAo’S THIRD GoVeRNmeNT FoRum

8 Spring 2011INFlueNTS Click HERE to return to Table of contents

the program growing in numbers and the success that links students with sectors in their program of study. These are called Specialist High Skills Major (SHSM). There were many opportunities presented for engaging students in the wastewater industry.

The Ministry of the Environment’s Certification and Training program was discussed along with recent changes that will allow cross border (provincial) movement of licensed operators. There is a move afoot to produce Canadian standardized exams as well. The Ministry sends an e-bulletin to operators twice annually. This is an opportunity for WEAO to send along information on confer-ences, seminars, etc., that is relevant to the operators.

There were a number of action items that came out of the discussions. The implementation of these items will ensure continuing engagement with provincial government ministries and serve to fulfill a number of goals outlined in WEAO’s Strategic Plan 2009-2013. For a review of the Strate-gic Plan, please see the WEAO website under ‘Mission’.

ontario Coalition for Sustainable Infrastructure (oCSI) (www.on-csi.ca)OCSI will be picking up speed over the next few months.

The Coalition had been formed to provide ‘one voice’ to government on issues related to sustainable infrastruc-ture. Membership includes Ontario Water Works Association (OWWA), Ontario Public Works Association (OPWA), Ontario Good Roads Associa-tion (OGRA), Municipal Engineers Association (MEA), and WEAO. The original structure provided a rotation of associations serving as chair and sec-retary, but, for a variety of reasons, this governance structure has not worked as well as initially thought. So, the orga-nization will now benefit from having

a volunteer serve as a semi-permanent chair, with assistance from an executive director. This structure provides more continuity and stability to the group.

We can see new challenges ahead, as the government proceeds with its WaterOpportunitiesandWaterConservationAct, and activities associated with the Open for Business Agenda. Stay tuned to INFLUENTS for quarterly updates on OCSI’s activities. Anyone with specific sustainable infrastructure questions or concerns can bring their concerns to any of the associations, and/or directly to OCSI. The issues are discussed and deci-sions made as to action by a specific asso-ciation or from the group as a whole.

Don Kemp, President WeAO tonia Van Dyk, 2011 Vice-President OPCeA

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W e F D e l e G AT e S R e P o R T

oPeRAToR ouTReACH A Key FoCuS oF WeF’S HouSe oF DeleGATeStim Constantine, P.eng., CH2M Hill, Wef Delegate 2009-2012

he Water Environ-ment Federation’s (WEF’s) House of Delegates, on which Vince Nazareth and I represent WEAO, has been charged with a number of initiatives. In our

opinion, one of the most important is the Working Group investigating Operator Outreach. Over the past few years that we have been involved in WEF, there have been discussions suggesting that WEF should do more to support and develop the capabilities of operators and also to raise their visibility as frontline public health professionals. While these discussions have been lively at times, they have not resulted in a clear indica-tion of what WEF can best do to make a more effective contribution in this area.

WEF does provide training materials (e.g., books, study guides, trainers’ kits and online courses) for operators to use to pre-pare for certification or to meet continu-ing education requirements. In addition, WEF also provides in-person workshops at WEFTEC that can be helpful to operators. But, many would agree that WEF can do much more. In light of this, it has been exciting to be part of a WEF-wide initiative (you might even call it a movement!) to:• increaseourunderstandingofthe

needs of the operational professional of today and the future,

• determinehowWEFmightbettermeet those needs, and

• movefromunderstandingtoaction.

The first step in the process included a survey that was completed last year. The survey generated feedback from over 900 respondents with the following break-down by job description:

• plantoperators(43%ofreturns),• administrative/managementstaff(around20%),

• labanalysts(around8%),• collectionsystemsoperators(over10%),and

• maintenanceandbiosolidsprofes-sionals(around19%).

The survey has provided informa-tion on requirements for certification, continuing education, training prefer-ences (face-to-face is still preferred to self-study via manuals or the web), and participation in WEF and/or member associations such as WEAO. These data are being shared widely and WEF is also working with its member associa-tions (MAs) to build a matrix of infor-mation on certification and training requirements, trends, and challenges.

WEF is also hearing from MAs that are facing increasing needs for opera-

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tor training, in some cases because states facing budget cuts are reducing support for training institutions and personnel.

What is WeF doing?1. Through a pilot program, WEF is

working with MAs to collaborate on the development and sharing of con-tent for operator training materials.

2. In response to a request from a member association, WEF is developing and launching an online Operations Resource Center (see http://www.wef.org/OperationsResources/)

The Center provides links to certification, training and techni-cal resources as well as networking opportunities.

3. WEF is seeking broad input to a major revamp and update of its Wastewater Operations Certification and Training Position Statement. This statement will address issues such as: • certification(e.g.,mandatoryvs.vol-

untary, national guidelines, continu-ing education and so forth);

• recognitionofthevalueandappro-priately credentialed wastewater professionals; training (and funding thereof); and

The Water Environment Association of Ontario (WEAO) is a member asso-ciation of the Water Environment Federation (WEF). A member association is an independent regional association whose objectives are in harmony with the purposes of the Federation. The other Canadian member associations are the British Columbia Water and Waste Association, Western Canada Water Environment Association, RÉSEAU environnement Inc. and Atlantic Canada Water & Wastewater Association. All 10 provinces and three territories are represented by these five member associations.

WEF is governed by a Board of Trustees having legal and fiduciary respon-sibility for the supervision, control and direction of WEF. Cordell W. Samuels of the Regional Municipality of Durham is currently the vice-president and will become president-elect at WEFTEC 2011.

The WEF House of Delegates serves as the deliberative and representational body of WEF and as an advisory group to the Board of Trustees. WEAO elects two members to the House of Delegates. Our current delegates are Vincent Nazareth, P.Eng., R.V. Anderson Limited, WEF Delegate 2008-2011; and Tim Constantine, P.Eng., CH2M Hill, WEF Delegate 2009-2012.

WEAO recognizes and is grateful for the time and effort that Cordell, Vincent and Tim put in on behalf of WEAO members.

L-r: Cordell Samuels, Region of Durham, Wef Vice-President

Vince Nazareth, P.eng., R.V. Anderson Associates ltd, Wef Delegate 2008-2011

Tim Constantine, P.eng., CH2M Hill, Wef Delegate 2009-2012

www.xcg.com

Toronto | Kitchener | Kingston | Edmonton | Cincinnati

EXPERT PEOPLE. BETTER DECISIONS.

• Water Resources

• Hydrology

• Water Supply

• Water Treatment

• Municipal Infrastructure

• Wastewater Treatment

• Groundwater Investigations

• Surface Water Investigations

• Source Water Protection

• reciprocity(recognitionofqualifications across state and provincial boundaries) and other issues that will be near and dear to all of our hearts.

The position statement will form the basis of WEF and MA outreach and input to policy makers, regulators, utility manag-ers, and other key stakeholders on this important issue.

4. WEF is planning for a Certifica-tion Summit to be held in the spring of 2011. The Summit will include representatives of WEF, its MAs, AWWA, and others. While the scope of the Summit is still being defined, the hope is to generate consensus on the gaps and priorities in opera-tor certification and training and develop an action plan to address these. We also hope to leverage col-laboration and foster partnerships.

Vince and I are trying to stay on top of these developments at WEF, espe-cially with respect to how this initiative can best benefit operations and main-tenance personnel north of the border. Stay tuned.

11 Spring 2011INFlueNTSClick HERE to return to Table of contents

I N T H e S P o T l I G H T

Joe GemIN: PuBlIC HeAlTH AND SAFeTy – FRom oNTARIo To THe WoRlD

hen asked to identify the experi-ences that have influ-enced him the most during his 30-year

career, AECOM’s Joe Gemin points to projects he tackled in the far reaches of the globe, from Nicaragua to Saudi Arabia to the Galapagos Islands. He notes that, while the North American water and wastewater sector often focuses on applying the latest technol-ogy to maximize effectiveness and efficiency, other locales struggle with more basic challenges.

For instance, when preparing preliminary and detailed design for sewage pumping stations in the inter-national market, in Bluefields, Nica-ragua, Gemin saw infrastructure that had not been rebuilt since the region was flattened by an earthquake more than a decade earlier. “That’s when you realize how much we take for granted,” says the water and wastewa-ter engineer, describing the experience as “particularly humbling.” “We are so fortunate here in North America to have so many amenities.”

In fact, Gemin has experience in virtually every aspect of water and wastewater treatment, storage, convey-ance and distribution pumping, both while designing new systems and consulting on rehabilitation, expansion and upgrades. Working overseas has also taught him how to be adaptive. “In some emerging nations, you have to work with what they have and keep it simple,” he explains. “It’s a premise

that extends to North America as well. If you keep it simple, it’s bound to last a lifetime.”

Gemin learned the importance of ‘constructability’ early in his career. When he first started with Proctor & Redfern (which was eventually acquired by Earth Tech and then AECOM), he was given the opportunity to try vari-ous job positions in different depart-ments. After spending considerable time with computer modeling, he went out into the field as a resident engineer. “I was fortunate to be asked if I wanted to go out and see a water treatment plant being built,” he explains. “It was valuable to see the actual “bricks and mortar.” Then I took back some of this experience to the design process.”

Over the years, more and more automation has been added to that pro-cess so that systems are now extremely complicated. In the first few water and wastewater treatment plants with which Gemin was involved, control was entirely manual. He notes that, even today, the ability to run manually should always be an inherent part of the design. “But a lot of our clients do want the design process to go directly to automa-tion,” he says. “Instrumentation and automation have enveloped everything we do today. Clients are expecting that.”

Gemin finds himself involved in conversations he would have never had even five to ten years ago. Considerable time and effort is now spent tailoring automation to meet a client’s needs. “Hydraulics hasn’t changed in centu-ries,” says Gemin. “What changed is the level of sophistication we now introduce to our facilities. I don’t see this stopping any time soon. Because we can do it, people want it.”

Instrumentation and automation also creep their way into regulation. Once we can obtain information from a particu-lar device, we feel that we must have it. But being able to generate sophisticated information requires having people on hand to receive it, interpret it and act on it, cautions Gemin.

On the other hand, regulations have become more stringent on the both the water and wastewater side so that an operator could not function without the information provided by automation and instrumentation. “Processes and information that we had 25 to 30 years ago would not meet many of the regula-tions we have today,” says Gemin. “So we have to upgrade facilities on an ongoing basis. You hang around long enough in this industry and the things you designed years ago, you come back and upgrade.”

He notes that the Walkerton report singlehandedly increased the level of stewardship demanded of the water and wastewater sector. “These are very important and positive changes,” says Gemin.

Through his long career, the engineer has been at the forefront of designing a number of innovative and conventional treatment systems that have met and exceeded the industry’s increasingly stringent guidelines. These have included advanced oxidation pro-cesses, ultraviolet irradiation systems, and ultrafiltration and microfiltration, among others.

“This is a field which requires lifelong learning,” notes Gemin. “If you’re not up-to-date on the latest regulations and technology, then you’re coming from behind. He has found participation in professional associations to be invalu-

12 Spring 2011INFlueNTS Click HERE to return to Table of contents

able to that learning process. In fact, his resume lists more than a dozen profes-sional affiliations, including the AWWA, OWWA, WEF and the WEAO.

‘If you participate in those associa-tions, it facilitates your lifelong learn-ing,” he explains. “In every association I have been involved with, I have taken away more than I have given.”

Nonetheless, Gemin has given a lot of his own time and energy. He sat for many years on the AWWA’s Program Committee as well as on several com-mittees of the Standards Council (two of which he chaired) and is currently on the AWWA Standards Council. He has also been a member of committees involved in Energy Management, Mem-brane Technology Research, Water Treatment Facilities Operations and Maintenance—and the list goes on. In 1997, he received the AWWA’s Norman Howard Award which recognizes proficiency in design, construction, operation, maintenance, management, regulation and research related to municipal water supply.

Gemin’s work has contributed to making both water and wastewater systems not only more effective but more efficient as well. He notes that many of the upgrades in which he has been involved in recent years have focused on energy efficiency. One recent wastewater project involved designing an auto-thermic digestion system and using the energy to heat some of the buildings.

Meanwhile, many clients are con-cerned not only with their carbon foot-print but their ‘water footprint’ as well. As a result, some areas are coordinating their efforts for a more comprehensive approach. Gemin has recently been involved in designing a master plan for a number of communities in the Grand River Basin, including Guelph, Kitch-ener and Waterloo.

Of course, he adds, Ontario has been blessed with some great starting points in terms of water quality. The Great Lakes waters do not present the same challenges Gemin has seen in places in the some parts of the world. “Which is all the more reason,” he says, “that we must appreciate and protect what we have.”

Lastly, Gemin has had the great fortune of working with and for the best people (clients and colleagues) in the water and wastewater industry and hopes this continues for a long time.

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N e W P R o F e S S I o N A l S & S T u D e N T S C o R N e R

loTS oF CoNFeReNCe ACTIVITIeS FoR STuDeNTS AND NPS

s an organiza-tion, WEAO has done a lot over the last several years to build a strong profile and member-ship experience for students

and New Professionals (NPs). This has included special activities for students and NPs at the Annual WEAO Technical Symposium & OPCEA Exhibition.

This year’s conference will be held April 10-12, 2011 at the Westin Harbour Castle in Toronto. For students and NPs, the annual conference is probably your best opportunity for meeting people in the water quality industry in Ontario and learning about what is going on. Best of all, it is free for WEF/WEAO student members ($75 for non-members, or become a WEF student member ahead of time for just $25 USD at www.wef.org) and discounted for NPs ($475).

As an additional incentive for stu-dents to attend the conference, the first 40 students who register will receive free tickets to both the Awards Lunch on Monday ($75 value) and Tuesday’s lun-cheon ($45 value). If you are a student who signs up early and cannot attend one or both of the lunches, please inform

the WEAO office at [email protected] or (416) 410-6933.

There will also be a Networking Board where students and NPs can post their resumés for prospective employ-ers, as well as obtain information from companies looking to hire.

We also have a brochure available providing further information about the conference experience for students.

You can use this to advertise to your student chapter about the benefits of coming to the conference. Contact Erin or Matt below to obtain a copy.

For more information about student and NP conference items, contact [email protected] (NP Committee Chair) or [email protected] (NP Committee Conference Coordinator).

By Alvin Pilobello, AeCOM, WeAO nP liaison – Communications Committee

INVITATIoN To JoIN THe WeAo CommuNICATIoNS CommITTee

he WEAO Com-munications Committee is responsible for raising the profile of WEAO to its members and general public through the

publication of its quarterly magazine INFLUENTS, the distribution of an e-newsletter, and by maintaining the WEAO website.

The committee is looking to recruit students and NPs alike who are inter-ested in volunteering and gaining an opportunity to achieve the following:

• IMPROVEyourwritingskillsthrough writing, editing, and proof-reading technical and non-technical articles for INFLUENTS

• EXPANDyourtechnicalandgeneral knowledge of the water and wastewater industry, including who the various ‘players’ are, through in-depth proofreading of various kinds of articles for INFLUENTS

• BEINVOLVEDinthedevelopmentof a new and improved WEAO web-site, slated for release in 2011.

Time commitment to the Com-munications Committee is completely voluntary – only sign up for tasks

that you are able to undertake. Our members consist of people from vari-ous entities of the industry: equipment suppliers, distributors, consulting firms, municipalities and the Ontario MOE. This provides you with a unique, well-rounded exposure and perspective.

For more information on volun-teering, please contact Alvin Pilobello (your NP liaison to the committee) at [email protected]. For more information on the committee, please visit the following website: http://www.weao.org/committees/communications/Communications.html

We look forward to hearing from you.

events for students/NPs at the conference:Sunday April 10 11:00 am–4:00 pm 3rd annual Student Design Competition1:00 pm–3:00 pm Tour of R.C. Harris Water Treatment Plant4:00 pm–6:00 pm WEAO Annual General Meeting6:00 pm–7:00 pm The Social Hour: Connecting New and Seasoned Professionals7:00 pm–10:00 pm Ice Breaker Reception

Monday April 11 10:30 am–5:15 pm Technical sessions, including New Professionals session12:00 pm–2:00 pm Awards Lunch2:00 pm–5:00 pm OPCEA equipment exhibition4:15 pm–5:15 pm Student Discussion Panel – Career DevelopmentEvening Student and NP social dinner (location yet to be determined)

Tuesday April 12 8:30 am–3:30 pm Technical sessions8:00 am–5:00 pm OPCEA equipment exhibition9:00 am–3:00 pm Operations Challenge4:00 pm–5:00 pm Totally Wasted Game Show7:00 pm–10:00 pm Conference Banquet, including announcement of Best Student

Presentation Award

14 Spring 2011INFlueNTS Click HERE to return to Table of contents

15 Spring 2011INFlueNTSClick HERE to return to Table of contents

N e W P R o F e S S I o N A l S & S T u D e N T S C o R N e R

By Preya Balgobin, RV Anderson Associates ltd.

2010 NP/yP HolIDAy SoCIAl

he holiday season is a time for fami-lies, friends, and, of course, parties. Not to be left out of the spirit of the season, the WEAO New Pro-fessionals (NPs)

and OWWA Young Professionals (YPs) committees hosted their annual Holi-day Social on December 3, 2010. This year’s event, held at Crush Wine bar in downtown Toronto, was a chance for the NPs and YPs to extend holiday greetings and cheer to each other, as well as casually discuss the coming year and what it might hold for our committees, WEAO, and the industry in general.

The New Professionals Committee of the Water Environment Association of Ontario and the Young Professionals Committee of the Ontario Water Works Association regularly host social events to provide avenues for new members of the water/wastewater industry to network and share their knowledge and experience. These social events also bring some of the more experienced and learned members of our industry

together with new entrants, which is an opportunity for the NPs/YPs to gain insight into the profession.

This year’s event was no exception. Discussion topics were wide ranging, from water treatment technologies to when the next WEAO and OWWA conferences were going to take place. As the night progressed, lively con-versations could be heard revolving

around favourite cuisines, sports teams, movies and various hobbies. This flow of conversation is a good indication that the social event was a success, as it shows that the attendees got to know each other on a profes-sional and social level.

Special thanks to Tina Zhang and Mark Ortiz of the OWWA YP Com-mittee for planning this great event.

he McMaster Chapter of WEAO started off the school year meet-ing with new members while reconnecting with old friends. We were able to

get off to a great start with a general meeting where ideas were communi-cated and our summer experiences were shared. There is a wide range of WEAO members in each year of study, and these early meetings demonstrated a need for mentorship between the upper year stu-dents and the newer students. As such, an informal mentorship program was formed. This program allows upper year students to pass on their knowledge and

mCmASTeR STuDeNT CHAPTeR uPDATeBy Amalia Rey- McIntyre, President and sarah Jewell, treasurer, WeAO McMaster student Chapter

provide guidance to the younger mem-bers taking an interest in water and the environment. Through this program, as well as word of mouth, we were able to increase awareness of WEAO on campus resulting in increased membership for the McMaster Chapter.

Student Design CompetitionAt the beginning of the year, we decided that it would be a great learn-ing experience to send a McMaster team to compete in the third annual WEAO Student Design Competition. The design topic complements our stud-ies and, as such, many members were eager for the opportunity to expand upon our developing skills and knowl-edge in the wastewater field. We are currently working away at the design,

holding weekly meetings and enjoying the experience.

The futureOur next focus will be implement-ing social events and a fundraising endeavour. In addition to our regular meetings and speaker events, we hope to re-energize our chapter with a winter social that will help bring our members out of their winter blues. We further hope to hold a BBQ once the weather warms up, with the proceeds going towards Water For People.

As the executive team will be graduat-ing this coming April, it is imperative that we guide and foster new leadership before the school year is finished. Elec-tions will be held soon, with many pro-spective candidates showing an interest.

WeAO nPs and OWWA YPs at the 2010 Holiday social in toronto.

16 Spring 2011INFlueNTS Click HERE to return to Table of contents

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18 Spring 2011INFlueNTS Click HERE to return to Table of contents

THE lArgEST CAnAdiAn TECHniCAl COnfErEnCE fOr THE WASTEWATEr induSTry

April 10-12, 2011The WesTin hArbour cAsTle

ToronTo, onTArio

40Th AnniVersArYWATER ENVIRONMENT ASSOCIATION OF ONTARIO

WeAo Technical symposium and opceA exhibition

ONE WORLD.OnE WATEr EnVirOnMEnT.

40 WEAO TECHniCAl SyMPOSiuM & OPCEA EXHiBiTiOnTH ANNUAL

Welcome from the Chair

on behalf of the WeAo conference committee, i am pleased to invite you to the 40th Anniversary of our Annual WeAo Technical symposium and opceA exhibition, April 10-12, 2011, at the Westin harbour castle in Toronto.

once again, the members of The opceA bring the latest and greatest technologies and services right to our door with over 100 booths to discover in the exhibition area. please keep an eye out for the free exhibition passes which will be issued by opceA early in the new year - even if you are not a full con-ference registrant, you can still attend the exhibition at no charge.

The Technical symposium of the WeAo Annual conference offers the highest quality and most comprehensive program of any industry conference in canada.

based on the number and quality of abstracts re-ceived to date, the Technical program this year prom-ises to meet the high standard that WeAo members have come to expect.

i would also personally encourage you to attend as many of the associated conference events that you can. These include the student Design competition, WeAo Annual Meeting, icebreaker reception, WeAo Awards lunch, opceA reception, operations chal-lenge, closing banquet, and several others.

i believe i speak for all of the members of the con-ference committee when i say that we look forward to seeing everyone this coming April, to help us cel-ebrate this milestone 40th Anniversary.

rob Andersonconference chair

President’s Message

The time to register for our annual conference is here again. i’d like to invite you to join us in Toronto, April 10-12, 2011, for the 40th annual WeAo Technical symposium and opceA exhibition. We have a great team of people putting together the events for the conference this year and it promises to be entertain-ing and instructive. Join us to get reacquainted with old friends, make some new contacts and learn more

about the latest advances in the science and technol-ogy of our water environment. We are also pleased to announce that the Water environment Federation president, Jeanette brown, is planning to attend our conference.

don Kemp, P.Eng.president WeAo

The Ontario Pollution Control Equipment Association ExhibitionopceA expects over 100 member companies to come together to exhibit their equipment and services for the Water & Wastewater industry. The opceA trade show will be attended by many consultants, operators and other industry professionals who will be looking for new ideas, technologies, and professional expertise from the opceA exhibitors. Take this excellent opportunity

to bring yourself and others in your group up to date on what’s new in the equipment and services side of the industry. new for this year, the exhibit area will be open in the morning in addition to the regular show times during all coffee breaks and Tuesday lunch. As always, be sure to also join us for a relaxed get-together during our Monday evening reception.

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2010APRIL 10-12,THE WESTin HArBOur CASTlE TOrOnTO 2011

Executive director’s Welcome

We invite you to attend and participate in the 40th Annual WeAo Technical symposium and opceA exhibition being held at the Westin harbour castle inToronto.

As WeAo’s executive Director i am particularly proud to be involved in this 40th annual event. There have been many changes in our world, our technolo-gies, and in our daily lives over the past 40 years. in my time with WeAo i have seen the Association evolve to address hectic lives, social networking, and reduced resources of member companies and employers. This conference has always provided exceptional quality for a reasonable registration and

enabled attendees to gain considerable benefits through the Trade show, technical papers, the op-erations challenge and many new student and new professional events.

enjoy the conference, a valuable opportunity to make new friends, develop contacts, and share your passion for protecting ontario’s water environment.For those of you new to the conference you will see high quality presentations and an extremely well or-ganized event. This is all due to the hard work of our many volunteers.

Catherine Jefferson

Keynote Speaker: david Phillips

Monday April 11 8:30 a.m.David has been employed with environment canada’s weather service for over 42 years. his work activities relate to the study of the climate of canada and to promote awareness and understanding of weather and climate in canada. he has published several books, papers and reports on the climate of canada, including several essays in The canadian encyclope-dia, a book on The climates of canada, and two best sellers: The Day niagara Falls ran Dry and blame it on The Weather. he is the originator and author of the canadian Weather Trivia calendar, the most pop-ular calendar sold in canada, and now in its 24th year. For nearly ten years he wrote the Weather-wise col-

umn in the canadian Geographic magazine. David frequently appears on national radio and television as a commentator on weather and climate matters. he is well-known as an expert on The Weather network. David is a fellow of both the royal canadian Geo-graphical society and the canadian Meteorological and oceanographic society. he has been awarded the patterson Medal for Distinguished service to Me-teorology in canada, and has twice received the pub-lic service Merit Award. David is the recipient of two honorary doctorates from the university of Waterloo and nipissing university. in 2001, David was named to the order of canada.

WEf representative

Jeanette brown is the 2010-2011 president of the Water environment Federation (WeF), an internation-al organization of water quality professionals head-quartered in Alexandria, Va.

she is currently the executive Director of the stam-ford Water pollution control Authority (stamford, conn.) and Adjunct Faculty in environmental engi-neering at Manhattan college in riverdale, n.Y.

Jeanette has been a WeF member since 1976 and has served on WeF’s house of Delegates from 2004-2007. she has also been a member of or chaired several WeF committees including op-erations challenge, Wise committee-Developing Guidelines and Training for Wastewater secu-rity, Municipal Wastewater Treatment Design and Technical practice as well as WeF’s community of practice for Microconstituents and as the facilita-tor for WeF’s hoD strategic planning sessions and Governance. in addition, she has co-chaired and authored several of WeF’s publications including Manuals of practice and training courses. she has also published numerous papers, made numer-ous presentations at WeFTec and other industry-related events, and is on the editorial board of the Journal of the u.s. sJWp.

she has been an active member of the new england Water environment Association (neWeA), the Ameri-can Academy of environmental engineers (AAee), the American society of civil engineers (Asce) and their environmental and Water resources institute (eWri) and the international Water Association (iWA), serving in a number of positions including president of AAee and president of eWri.

Jeanette has received WeF’s hatfield (1986) and public educators Awards (2003); neWeA’s neWpcA operator of the Year (1988), Alfred e. peloquin (2000) and public educators Awards (2002); as well as the Governor’s environment 2000 Award for contribu-tions to improving the water quality of long island sound (1993) and an epA region 1 Merit Award (2007), AAee, edward J. cleary Award (2008), AAee Kappe lecturer (2008).

she is a licensed professional engineer in connecti-cut; board certified environmental engineer (AAee); Diplomate of the American Academy of Water re-courses engineers (AAWre), class 4 Wastewater Treatment plant operator; and class 4 collection system operator. Jeanette received a b.s. from the university of Maryland in college park and an M.s. in environmental engineering from Manhattan college.

21 Spring 2011INFlueNTSClick HERE to return to Table of contents

40 WEAO TECHniCAl SyMPOSiuM & OPCEA EXHiBiTiOnTH ANNUAL

Conference EventsOperations Challengecome see some of the best wastewater personnel in ontario display their expertise during the 40th Annual WeAo Technical symposium and opceA exhibition. The event will mark the 21st consecutive year for the operations challenge competition. participants are required to compete in five events demonstrating their skills and knowledge against competitors throughout the province. The five events are collec-tion system, laboratory, process control, pump Maintenance and safety.

each operations challenge Team must follow the Water environment Federation (WeF) requirements that team members be drawn from professional Wastewater operators (pWo) members, currently em-ployed or retired, from one or more facilities or municipalities and each team must be comprised of at least two operators in non-supervisory roles. The winning team is eligible to represent ontario in los Angeles, california at WeFTec 2011.

interested in Participating?be a part of the operations challenge competition by demonstrating your region’s expertise and professionalism by entering a team or becoming a volunteer on the committee. For more information or to register for the operations challenge, please contact norma linkiewicz at 905-685-4225 x3286 or [email protected] or visit http://www.weao.org/committees/Operations_Challenge/Operations_Challenge.html

“Totally Wasted” game ShowTest your knowledge of wastewater. par-ticipate or follow along and cheer as teams compete for top bragging rights and prizes in the annual Totally Wasted Game show (TWGs) that will take place following the operations challenge competition in the Metro ballroom.

Fashioned after a popular TV game show, the TWGs is a fun competition of waste-water knowledge among contestants. The TWGs is both educational and entertaining. Teams should be comprised of a consul-tant, opceA supplier and professional operator. Don’t delay; the first four teams

confirmed will be the contestants of the 2011 Totally Wasted Game show. please contact norma linkiewicz at 905-685-4225 x3286 or [email protected] for more information or to register.

PWO Technical SessionMake sure you register Monday to attend this year’s pWo session which will feature the following topics: the First Municipal comprehensive certificate of Approval, F.o.G. (Fats, oils and Grease) and com-mercial Dishwashers, Filamentous bacteria identification, Ferrous to Ferric conversion and Variable speed pumping in parallel. Al-though the pWo session is geared towards Wastewater operations, all are welcome to attend. hope to see you there!

PWO TourJoin us on sunday April 10 as we tour the city of Toronto’s impressive r.c. har-ris Water Treatment plant. This 950 Ml facility was built in the 1930’s and is both a heritage historical site and a civil engineer-ing historical site. of particular interest is the 40 Ml residual waste treatment plant located underground to treat the residuals from the plant. The bus will leave from the harbour castle Westin at 1:00 p.m. sharp and return by 4:00 p.m. pre-registration for the tour as part of your conference registra-tion is required. space is limited and will be on a first come, first served basis. The tour will not be cancelled due to weather, so dress appropriately. safety shoes/boots are required. For more information, please contact carrie brunet, niagara region at 905-685-4225 x3767 or [email protected] regarding the pWo Tech-nical session and Tour.

Operator Certification Exams WeAo will be hosting an operator certifi-cation examination session at the Annual conference. it will take place on Tuesday, April 12th at the Westin harbour castle hotel, Dockside 1, Toronto commencing at 9:00 a.m.

All persons registered for the operator certification examination morning session will be offered a complimentary pass

to the exhibition show floor for Tuesday afternoon, April 12, 2011. please report to the registration Desk in the Metro Foyer before 8:45 a.m. to receive your name tag and your complimentary registration to the opceA exhibition.

The ontario Water Wastewater certification office (oWWco) will provide registration services for all levels of Wastewater Treat-ment, Wastewater collection, and Water Treatment, including operator-in-Training (oiT) examinations, but space is limited so sign up soon! participants wishing to register for an exam must submit their application form and fees directly to the oWWco no later than March 25, 2011 Applications, instructions and fee struc-tures can be found at http://www.owwco.ca/certificationexams.htm

please note that checking the box on the conference registration form will not register you for the examination, you must register for all examinations directly with oWWco.

new Professionals ProgramThose new to the industry should be sure to take advantage of the new profession-als (np) program. This includes discounted conference fees, a special social hour to meet seasoned professionals, and a “new professionals” technical session on Monday where nps will present their current projects. To qualify as an np, you must have less than 10 years employment experience in the wastewater industry or be under 35 years of age.

Student Programstudents who are WeF/WeAo student members get free conference registration which includes all the icebreakers, techni-cal sessions, equipment exhibition and in addition, the first 40 student registrants will receive free lunches. There will also be the 4th annual award for best student presen-tation at the conference.

Spring 201122 INFlueNTS Click HERE to return to Table of contents

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2010APRIL 10-12,THE WESTin HArBOur CASTlE TOrOnTO 20112010APRIL 10-12,THE WESTin HArBOur CASTlE TOrOnTO 2011

networking BoardAre you looking to hire new employees? or are you looking for employment in the water environment industry? if so, then be sure to use the conference’s network-ing board. resumes, company informa-tion, and job opportunities can be posted on this year’s networking board by sending a pDF version to Matt simons at [email protected]. employ-ers can request an electronic copy of the resumes ahead of time in order to set up interviews at the conference.

Student Panel discussion: Career Paths in the Water Environment industrystudents and nps are invited to attend a panel discussion where experienced professionals from a wide range of back-grounds will discuss career development in the water environment industry. The panel discussion will primarily focus on areas of interest of those in attendance through a question and answer format.

Student design Competition (SdC) Presentationseveryone is invited to attend the 3rd an-nual student Design competition held on sunday, April 10th, 2011. This competi-tion is intended to promote “real world” design experience for students interested in pursuing an education and/or career in water/wastewater engineering and sciences. This year, students will be pre-senting their designs for the expansion of the Acton Wastewater Treatment plant.

guest Program 2011The Guest program will start Monday morning with a light breakfast then off to a full day of crafting. We will have a stampin up instructor spend the day with us exploring different ways to be creative with paper. Tuesday we will meet in the hotel for a leisurely breakfast. After break-fast we will explore some of the shopping that Toronto has to offer. For lunch we will dine at one of the restaurants in the area and then back to our hotel.

Water for People CanadaWFpc changes the lives of many people across the face of the earth every day. help us to help them continue this important work by supporting our events described below.

Water for People Monday Evening Eventbuilding on the success of last years’ event, we have arranged for another night of fun, food, live music and networking, this time taking in the views of Toronto’s harbour front, and all while raising funds for Water For people. please join us at pier 4 storehouse restaurant, a casual waterfront hideaway offering outstanding food and the largest private collection of nautical memorabilia in eastern canada, located just a short walk from the conference hotel. Doors open at 7pM, buffet dinner is served at 7:30pM, band plays 8:30-11pM. Dinner & music tickets are $45 and music tickets (after 8:30pM) are $25 (cash bar). Tickets are available on the conference registration form, or separately from the WeAo office. For more event info and for sponsorship opportunities, contact Janice Janiec at [email protected]

Charity draw donationsAs has become tradition at the conference WeAo and opceA will be holding fund rais-ing events for WFpc. opceA hosts a recep-tion on Monday evening and the proceeds from beverage sales go directly to WFpc. The charity Draw is another great fund raiser that has become one of the many highlights of the conference, with the final drawings taking place at the banquet on Tuesday evening. Great fun is had by all as the draw takes place and the winners’ names emerge. Many of last year’s conference sponsors and opceA’s exhibitors generously contributed items for the charity draw. if you wish to donate an item this year please contact the WFpc coordinator for this draw, Dave Kirkland at 905-670-2660 or [email protected]

Hotel informationMAKE yOur rESErVATiOnS EArly TO gET THE grOuP rATE!The Westin harbour castle Toronto1 harbour square, Toronto, on M5J 1A6Tel: 1-888-627-8559email: [email protected] card or advanced deposit required, cancellation policy: 48 hours prior to arrival.

Specify: “WEAO 2011”

Sunday, April 10th 201111:00 a.m.-4:00 p.m. student Design competition

2:00 p.m.-7:00 p.m. conference registration

1:00 p.m.-4:00 p.m. Facility Tour

4:00 p.m.-6:00 p.m. WeAo AGM

6:00 p.m.-7:00 p.m. The social hour

7:00 p.m.-10:00 p.m. ice breaker reception

Monday, April 11th 20118:00 a.m.-4:00 p.m. conference registration

Morning Sessions

7:30 a.m.-8:30 a.m. Morning coffee

8:30 a.m.-9:30 a.m. Keynote speaker

9:30 a.m.-10:00 a.m. refreshment break

10:00 a.m.-3:15 p.m. pWo Technical session

10:00 a.m.-12:00 p.m. Technical sessions

Afternoon Sessions

12:00 p.m.-2:00 p.m. Awards luncheon

2:15 p.m.-3:15 p.m. Technical sessions

3:15 p.m.-4:15 p.m. refreshment break

4:15 p.m.-5:15 p.m. Technical sessions

2:00 p.m.-4:00 p.m. operations challenge,

process control exam

4:15 p.m.-5:15 p.m. student panel Discussion

2:00 p.m.-5:00 p.m. opceA exhibition

5:00 p.m.-7:00 p.m. opceA reception

Tuesday, April 12th, 20118:00 a.m.-1:00 p.m. conference registration

9:30 a.m.-5:00 p.m. opceA exhibition

9:00 a.m.-12:00 p.m. operator certification exams

9:00 a.m.- 3:00 p.m. operations challenge

Morning Sessions

7:30 a.m.-8:30 a.m. Morning coffee

8:30 a.m.-9:30 a.m. Technical sessions

9:30 a.m.-10:30 a.m. refreshment break

10:30 a.m.-11:30 a.m. Technical sessions

Afternoon Sessions

11:30 a.m.-1:30 p.m. lunch in exhibit Area

1:30 p.m.-3:30 p.m. Technical sessions

3:30 p.m.-4:30 p.m. refreshment break

3:30 p.m.-4:00 p.m. ops challenge Awards

4:00 p.m.-5:00 p.m. Totally Wasted Game show

Conference Banquet6:00 p.m.-7:00 p.m. pre-banquet reception

7:00 p.m.-10:00 p.m. conference banquet

Conference at a glance

WEAO TECHniCAl SyMPOSiuMAnd OPCEA EXHiBiTiOn 2011WESTin HArBOur CASTlE

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40 WEAO TECHniCAl SyMPOSiuM & OPCEA EXHiBiTiOnTH ANNUAL

2011 Conference Technical Program OverviewMOndAy APril 11, 2011Session 1 utility Management The utility Management session will have presentations on the challenges that we face in the management of our wastewater infrastructure capital assets and resources. Topics include lessons learned in asset management and master planning, prepar-ing for labour shortage and new energy opportunities.

Session 2 new Professionals–AThis np session features papers presented by new professionals with less than 10 years of experience or under the age of 35. The morning session will start with research on the effects of powdered activated car-bon addition on removal mechanisms of endocrine Disrupting compounds (eDcs) in Mbrs. This will then be followed by a case study of the ontario power Generation program called Feed-in-Tariff (FiT) and its impact on the viability of biogas cogenera-tion. Then we will look at the case study of design and engineering services during the construction for upgrades to the Amherst-burg WWTp to improve the effluent quality while maintaining growth requirements in the area. Finally, the morning will conclude with a presentation which highlights the functionality of custom-built software for managing large-scale monitoring programs and it’s various applications for The city of hamilton’s combined sewer system.

Session 3 Advanced Treatment-Aincreasingly stringent regulations on waste-water treatment and discharge in ontario are challenging the plant owners and operators to find cleaner and cost effective solutions for disinfection, and enhanced nutrient removal. This session will cover the current issues in advanced wastewater treatment in ontario and, in particular, will provide evalua-tive information on both new and established technologies in this area. The first part of the Advanced Treatment session will present papers on removal of Quaternary Ammonia compounds from wastewater, and advanced disinfection techniques using paracetic acid and uV disinfection.

Session 4 Collection Systems Management-AThe first part of the collection system Man-agement session will discuss approaches to control and treatment of cso and wet weather flows and address the challenges of inflow and infiltration in municipal subdivi-sions and collection systems.

Session 5 Wetland Treatment Systems This session will provide a closer look at recent applications of wetland treatment technology in canada. presentations will address economic and design consid-erations, while sharing experiences on performance assessment and upgrades of existing wastewater treatment plants, and development of new projects.

Session 6 Professional Wastewater Operators (PWO)All are welcome to attend the presentations in this session which are geared towards Wastewater operations. Topics include: F.o.G. and commercial dishwashers, fila-mentous bacteria identification, ferrous to ferric conversion and vibrations in pumps.

Session 7 Environmental Health, Safety & SecurityThe environmental, health, safety and security committee are please to bring you three presentations. The two safety papers, Digester Gas safety and Work-place electrical safety (Arc Flash) are very timely in the wastewater industry. The third paper Veolia’s Water impact index: A new Tool for Water Footprinting offers an exciting method for stakeholders to identify how our everyday activities affect our water environment.

Session 8 Asset ManagementAsset Management is the process and way of business in order to optimize the performance of an asset through its lifecycle while meeting the intended level of service in the most cost effective way for present and future needs. The papers in this session will touch upon aspects of asset management including: level of service, condition assess-ment, capital replacement programs and utilizing information management.

Session 9 new Professionals-BThis np session features papers presented by new professionals with less than 10 years of experience or under the age of 35. The afternoon session will start with a story of a canadian engineer working on water projects in south western uganda as a part of long-term canadian international Development Agency funded initiative. next, we will look at the city of hamilton’s pollution prevention program in support of the city’s sewer use by-law. This will then be followed by a presentation on the Task

order Delivery Methods through a General services contract (Gsc) which is a portion of the Toronto basement Flooding protec-tion program, and the construction chal-lenges, and lessons learned. The afternoon will conclude with the presentation of the analysis of the transportation of the viruses and the effect of water ionic strength on vi-rus transport in rock fracture given the fact that many small suburban communities in canada rely on subsurface for both septic wastewater and drinking water supply.

Session 10 Advanced Treatment-Bincreasingly stringent regulations on wastewater treatment and discharge in ontario are challenging the plant owners and operators to find cleaner and cost effective solutions for disinfection, and enhanced nutrient removal. This session will cover the current issues in advanced wastewater treatment in ontario and, in particular, will provide evaluative information on both new and established technologies in this area. The second part of the Advanced Treatment session will present papers on tertiary filtration systems and evaluation of physico-chemical and biological phosphorus removal technologies.

Session 11 Collection Systems Management-BThe second part of the collection system Management session will discuss issues related to hydraulic transients in collection systems, review cso monitoring programs, discuss systems for remote control and storage of wet weather flows, and address issues related to climate change vulnerability in collection systems.

Session 12 Small Community issuesThis session will focus on issues of special concern to small communities and rural areas. presentations will focus on the de-velopment of design principles and display of experiences on challenging effluent limits, phosphorus removal and sustainable biomass conversion strategy for wastewa-ter treatment plants in these areas.

Session 13 Professional Wastewater Operators (PWO)All are welcome to attend the presentations in this session which are geared towards Wastewater operations. Topics include: the first municipal comprehensive c of A and a presentation from the Moe.

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2010APRIL 10-12,THE WESTin HArBOur CASTlE TOrOnTO 2011

2011 Conference Technical Program OverviewTuESdAy APril 12, 2011Session 14 Biosolids Management-AThis session will start with an update on the progress of the non-agricultural source materials land application regulations under the nutrient Management Act. The remainder of the session will be devoted to providing participants with a better under-standing of trace contaminants, including dioxins, furans, brominated fire retardants (bDe’s), personal care products and pharmaceuticals. The presentations will provide an overview of the nature of these compounds, why they are of interest in municipal biosolids and why they may be of concern in the environment and a literature review on the presence, persistence and fate of these chemicals including research from around the globe. The final speaker of the morning will bring us up to date on a study of trace contaminants in canadian biosolids. Does digestion have any impact on concentrations in biosolids and what are the concentrations in biosolids that are ap-plied to agricultural land in ontario?

Session 15 new Technologies and research-AThe first part in a two part session will focus on the comparison of digestion of mixed sludges in an anaerobic membrane bioreactor using a conventional digester, followed by the use of yeast cells to remove heavy metals from wastewater using ab-sorption technology. A comparative study involving disinfection by-products formation as a result of the treatment of wastewater using peracetic acid versus sodium hypo-chloride, then a study of the causes of high centrate in the centrifugation of digested sludge, and a paper dewatering digested will be presented.

Session 16 Emissions and OptimizationThis session covers two categories: treat-ment of air emissions associated with wastewater, and plant optimization. in the emissions category, the two presentations address the specifics of treatment option selected to achieve the regulatory limits. one of them in particular also details the authors ‘successful experience in ad-dressing the different regulatory require-ments, within the project schedule. in the optimization category, the two presenta-tions focus on the major component of the plant operational costs – energy. one of the two papers presents the upgrade works undertaken towards head works and aeration feed system improvements at a

Wastewater Treatment Facility in northern ontario. Another paper discusses about the study undertaken to identify an effective and efficient combination of blower and diffuser system.

Session 17 Biological Treatment-AThe first part of this two part session deals with fixed film and ballasted processes. Fixed film systems that will be presented include bAF, iFAs and Mbbr. presenta-tions will include important issues such as startup, re-rating expansion and meeting enhanced limits.

Session 18 Membrane Bioreactor TreatmentMembrane bioreactors continue to be popular in the treatment of wastewater and this session will focus on Mbr-related top-ics and technology. presentations include discussions related to trends in Mbr system procurement and applications and technical aspects such as hydraulic capac-ity and membrane fouling.

Session 19 StormwaterManagement of stormwater is one of many issues that needs to be addressed from a watershed perspective. localized and downstream impacts need to be consid-ered. The stormwater session will look at a number of projects that have addressed various aspects of stormwater management including the implementation of decentral-ized stormwater management techniques, long-term monitoring of planned wastewater treatment plant upgrades through surface water quality monitoring programs, con-structed wetlands for stormwater treatment, and climate change vulnerability of dams.

Session 20 Biosolids Management-BThe session will start with a presentation by the winner of the exemplary biosolids Management Award for 2011. From there we will move to look at a novel approach to biosolids management in honduras. A look at trends in biosolids management from a global perspective will be followed by an update the group on the canadian council of the Ministers of the environment initiatives for municipal biosolids management.

Session 21 new Technologies and research-BThe second part in a two part session involves a paper on using Membrane-Aerated biofilm reactor (MAbr) process

for tertiary nitrification in the effluent. This is followed by a case study of the construction of a compact upright bioreactor for the elimination of nutrients (cuben i) within the industrial wastewater treatment process, then a paper on the application of a continuous fill intermittent discharge sequence batch reactor (sbr) as an effective high performance biological nutrient removal process for a wastewater treatment plant with a high infiltration rate, and finally, a paper on the interference by activated sludge matrix in the measurement of sMp (soluble microbial products).

Session 22 Energy from WasteThis session is focused on the production of energy from biosolids management pro-cesses. We start with unraveling the rules and understanding the layers. Then on to energy production through anaerobic diges-tion, gasification and a look into the future through the WerF optimization program.

Session 23 Biological Treatment-BThe second part of this two part ses-sion deals with upgrades, construction sequencing and process selections at facilities throughout southern ontario and with capacities ranging from small to large. Topics discussed will include meeting new hydraulic capacities, meeting non-toxic effluent limits, staging construction and process selection.

Session 24 Watershed issuesunderstanding watershed issues is essential to establishing treatment standards for wastewater and stormwater effluents. localized and downstream impacts need to be considered for all parameters; especially nutrients. This session will look at a number of projects that have completed watershed and assimilative capacity assessments to identify site specific effluent requirements, treatment and technology approaches.

Session 25 Collection Systems Management-CThe third part of the collection system Management session will address issues related to surface water treatment for public amenities, present an innovative design for cso control and treatment, and discuss the iso 50001 energy management standard with respect to the water and wastewater sector.

29 Spring 2011INFlueNTSClick HERE to return to Table of contents

40 WEAO TECHniCAl SyMPOSiuM & OPCEA EXHiBiTiOnTH ANNUAL

Check http://www.weao.org/annual-conferences/current/conference.html for updates to this program

Monday, April 11, 2011

8:30-9:30 Keynote Speaker - Frontenac Ballroom9:30-10:00 Refreshment Break - Frontenac Ballroom

A.M.Session 1 Harbour Ballroom A

Session 2 Pier 4

Session 3Harbour Ballroom B

Session 4 Harbour Ballroom C

Session 5 Pier 5

Session 6 Pier 9

Session 7Pier 7 & 8

Utility Management New Professionals A Advanced Treatment ACollection Systems Management A

Wetland Treatment SystemsProfessional Wastewater Operators (PWO)

Environmental Health, Safety & Security

Chairs: Vanessa Chau Richard Pindler

Chairs: Erin Longworth Matt Simons

Chairs: Harpreet Rai Brian Gage

Chairs: Chuck Hudsonroder Matthew Ballaban

Chairs: Germana Numes John Pies

Chair: Carrie Brunet Chair: Duane Forth

10:00-10:30

Sewer Use Bylaw Program Re-Design For Effective Infra-structure Protection Chris Barlow - York Region Michele Maitre - York Region Vanessa Chau - CH2M HILL

Effects of Powdered Activated Carbon Addition on Removal Mechanisms of 17B-Estradiol and 17a-Ethyinylestradiol in MBRsWenbo Yang - Trojan Technolo-gies, Nazim Cicek - University of Manitoba, Hongde Zhou - University of Guelph

Quaternary Ammonium Compounds Removal at Five of the City of Londons Sewage Treatment PlantsTony Van Rossum - City of London

CSO Control in a Changing Climate: a Practical Approach to Planning & DesignStephane D’Aoust & Adrien Comeau - Stantec Consulting Ltd., Louis Julien - City of Ottawa

The Upgrading of Lagoon-Based Wastewater Treatment Systems in Northern Areas using High Perfor-mance Lagoon-Aerated Engineered Wetland SystemsJames Higgins & John Langan - Stantec Consulting, Martin Hildebrand - Nelson Environmental

Variable Speed Pumping in ParallelJeff Johnson, ASL Roteq

Digester Gas Safety and Handling SystemsJerry D’Ortenzio, Westech Industrial Limited

10:30-11:00

Risk-Based Approaches to Main-tenance. mprove Asset Reliability and Save Money.Frank Godin - EMA Canada Inc., Rob Lash - Toronto Water, Sherry Revesz - APG

Brown Gold - Ontario’s New Feed-In-Tariff (FIT) Improves Vi-ability of Biogas CogenerationDarrel Yong & Peter Burrowes - CH2M HILL, City of Barrie

Effectiveness of Peracetic Acid for Disinfection of Municipal Wastewater - Field Trial at the Valley East WPCP, City of Greater SudburyTony Cecutti & Murray MacCumber - AECOM Canada, Dan Miron - City of Greater Sudbury

Planning, Design, and Construction of Hamilton MacMaster CSO Storage TankMark Stirrup - Hatch Mott MacDonald, Jan Hudoba - J&M Structural, Jerry Parisotto & Susan Jacob - City of Hamilton

Windsor Lake Water Treatment Plant Constructed Wetland for Backwash WaterAndrew Niblock -City of St. John’s, John Pries & Michael Blair - CH2M HILL

London Fog 2: Com-mercial Dishwashers and FOGBarry Orr & Tony VanRos-sum - City of London, Roy Griffin- Griffin Plumbing

Workplace Electrical Safety - Based on CSA Z462. The importance of following this standard and providing the neces-sary PPE and safety equipment to employees.Len Cicero, Lenco

11:00-11:30

Toronto Basement Flooding Pro-tection Program: Infrastructure Stimulus and Thinking Outside of the BoxAnthony Pagnanelli - City of Toronto, Tony Petrucci - CH2M HILL

A comprehensive Wastewater Strategy Allows the Town of Amherstbeurg to Improve Effluent Quality While Meeting Growth RequirementsKathleen Hum, Terry Hearn, & Tim Constantine - CH2M HILL, Lou Zalenga & Antonietta Giofu - Town of Amherstburg

Evaluation of Peracetic Acid as an Effective Disinfectant at the Dundas WWTPJamie Jupp - CH2M HILL, Andrew Grice - City of Hamilton

Investigation of Basement Flooding Alfred Ho & John Presta - Region of Durham, Phil Grey - XCG Ltd., Tracey Ehl - Tracey Ehl Harrison Consulting

Performance Assessment and Char-acterisation of Two Natural Wetland Treatment SystemsCollin Yates - University of Waterloo

Filamentous Bacteria Identification and Their Control Strategies Jianrong Liu - GENIVAR

Veolia’s Water Impact Index: A New Tool for Water FootprintingLaurent Auguste of Veolia Water Americas

11:30- 12:00

Taking A Leap in Greening Facili-ties: Region of Waterloo’s First Wastewater Treatment Plant GHG Facility InventoryZeina Elali & Val Saknenko - RV Anderson Associates Ltd, Stephen Graham - SGA Energy Ltd., Kaoru Yajima - Region of Waterloo

Reinstating Harmony in a World of Flow Monitoring ChaosMarc Telmosse & John Barton - Stantec Consulting Ltd., Chris Gainham - City of Hamilton

New Developments in Design of New LP/HO Ultraviolet Disinfec-tion SystemsIrwin Osinga - Cole Engineering

York Region and Area Municipali-ties - Inflow and InfiltrationTara Clayton - York Region

Commerce Township Treatment WetlandRobert H. Kadlec - Wetland Management Services

Operational Impacts of Ferrous to Ferric ConversionLucyna Mroczek & Jane Purificati - Ontario Clean Water Agency, William Fernandes - Region of Peel

12:00-2:00 Awards Luncheon - Frontenac Ballroom

P.M.Session 8 Harbour Ballroom A

Session 9Pier 4

Session 10Harbour Ballroom B

Session 11 Harbour Ballroom C

Session 12 Pier 5

Session 13Pier 9

Pier 2

Asset Mangaement New Professionals B Advanced Treatment BCollection Systems Management B

Small Community IssuesProfessional Wastewater Operators (PWO)

Operations Challenge

Chairs: Christine Hill Nancy Kim

Chairs: Selvi Balcioglu Dale Jackson

Chairs: Harpreet Rai Heather Brewer Voitek Kozakiewicz

Chairs: Christine Hill Mark Stirrup

Chairs: Germana Nunes Troy Briggs

Chair: Carrie Brunet

2:15-2:45

Application Layer Technology for Water Supply FacilitiesRoland Bradshaw - Associated Engineering

Water is LifeGenevieve Kenny - RV Anderson Associates Limited

Double Pass Filtration vs Tertiary Membrane Filtration - A Process, Performance & Cost Comparison for Small Full-Scale FacilityHeather Brewer & Haley Piagno - Conestoga-Rovers and Associates Ltd., Brett Bloxam - Regional Municipality of York

Hydraulic Transients and Sewage Conveyance - Learning from ExperienceDjordje (George) Radulj & Fabian Papa, Hydratek & Associates

Establishing Effluent Limits for the Orangeville WPCP: Meeting the Chal-lenges of Headwater DischargesMichael Hulley - Royal Military College, Stephen Nutt - XCG Consultants, Doug-las Jones - Town of Orangeville

Harmony Creek WPCP: First Municipal Compre-hensive CofA in Ontario Edgardo Tovilla - Ministry of the Environment Thom Sloley - Municipality of Durham

Q&A and Process Control Event

2:45-3:15

Watershed-Wide Wastewater Treatment Optimization Pilot Proj-ect for Grand River WatershedMark Anderson & Sandra Cooke - Grand River Conservation Authority, Cameron Walsh & Gerard Wheeler - City of Guelph, Geoff Rae - City of Hamilton, Paul Mungar - County of Haldimand, David Chapman - CPO Inc.

City of Hamilton Pollution Preven-tion ProgramDave Alberton - City of Hamilton

Case Study: Simcoe WWTP Tertiary Treatment UpgradeBob Fields - Norfolk County, Chris-tian Cabral - Veolia Water Solutions & Technologies Canada

In Search of the City-Wide CofA: Hamilton’s CSO and Monitoring Characterization ProgramChris Gainham - City of Hamilton, Bar-bara Robinson - Stantec Consulting

Recent Experiences Upgrading Lagoon Based Systems with Tertiary Treatment FacilitiesPaula Steel, Ed Salenieks & Annie Chan - Associated Engineering

Operator Certification and Training: Current Status and New InitiativesBrian Gildner - Ministry of the Environment

3:15-4:15 Refreshment Break - Exhibition Area - Metro Ballroom4:15-4:45

Sewage Forcemain Inspec-tions and retrofit for Easier MaintenanceJean Luc Daviau - GENIVAR Consul-tants, Afshin Naseri - York Region

Toronto Basement Flooding Protection Program: Task Order Contracting Delivery and Construction Challenges and Lessons LearnedEric Wildschut - CH2M HILL, Ashok Teli & Teik Lim - City of Toronto

The Economics of Biological Phosphorus Removal in Ontario Kim Fries, Jeremy Kraemer & Laura Seaman - CH2M HILL

Preparing For The Future - Climate Change Vulnerability Assessment of the Town of Prescott’s Sanitary Sewage SystemGustavo Arvizu, John Chadwick & Ca-rissa Cautillo - GENIVAR Consultants LP, Craig Cullen - Town of Prescott

Omnivorous Closed Loop Sustainable Biomass Conversion for Cost-Effective Biofuels, Bioenergy, and value Added ProductsKlaus Doelle & David L. Johnson - SUNY-ESF, Steve Giarrusso - Village of Minoa

Student Panel Discussion: Career Paths in the Water Environment Industry

PWO Meet & Greet

4:45-5:15

The ISO 50001 Energy Manage-ment Standard & the Water/Wastewater SectorBob Griesbach & Paul Marsh - Hatch Mott MacDonald

Effect of Water Ionic Strength on Virus Transport in Rock FracturePulin Mondal & Brent Sleep - University of Toronto

Techniques for High Phosphorus Removal in Municipal Wastewa-ter and Field ResultsChristian Cabral - Veolia Water Solutions & Technologies Canada

The Integration of An Advanced Phosphorus Removal Technology Into an Engineered Wetland SystemJames Higgins - Stantec Consulting, Brent Wootton - Centre for Advanced Waste-water Treatment, Michael Walters - Lake Simcoe Region Conservation Authority, and David Blowes - University of Waterloo

5:00 p.m.- 7:00 p.m. OPCEA Reception Metro Ballroom

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2010APRIL 10-12,THE WESTin HArBOur CASTlE TOrOnTO 2011

Tueday, April 12, 2011

A.M.Session 14Pier 5

Session 15Pier 2

Session 16Pier 9

Session 17Pier 4

Session 18Pier 3

Session 19Pier 7&8

Certification Exams Dockside 1

PWO - Exhibition Area (Metro Ballroom)

Biosolids Management-Part A

New Technologies and Research-Part A

Emissions & Optimization

Biological Treatment A Membrane Bioreactor Treatment StormwaterOperator Certification Exams

Operations Challenge

Chairs: Janice Janiec Patty Quackenbush

Chairs: Susan Hansler Heather Brewer

Chairs: J.A. Aruldoss Andrew Smale

Chairs: Mike Newbigging Voitek Kozakiewicz

Chairs: Ed Broeders Val Saknenko

Chair: Adrien Comeau Alireza Shamshiri

8:30-9:00

NASM Regulatory Update Michael Payne, OMAFRA

Comparison of Digestion of Mixed Sludges in an An-aerobic Membrane Bioreactor (AMBR) with a Conventional Digester Vince Pileggi, Xia Chen, Martha Dagnew & Wayne Parker - University of Waterloo, Peter Seto - Environment Canada

Addressing Environ-mental Regulations for Improvements to Odour Control SystemsAlex Cavciumavui & Vi Lam - AECOM Canada, Tomislav Hrkac - The Region of York

Lessons Learned on Startup and Operation of a Biological Aerated Filter for Simultaneous BOD Removal and Nitrification at the Lou Romano Water Reclamation Plant, Windsor, Ontario, CanadaPaul Drca - City of Windsor, Jian Li - Stantec Consulting Ltd.

MBR Procurement: Success is in DetailsVal S. Frenkel, Kennedy/Jenks Consultants

The Use of Decentralized Stormwater Management Techniques in Hamilton AreaNahed Ghbn & Udo Ehrenberg, City of Hamilton

Operator Certification Exams

9:00-9:30

Legacy Chemicals and Trace Contaminants 101Sonya Kleywegt - Ministry of Environment

Adsorptive Performance of Yeast Cells to remove Heavy Metals from WastewaterSharam Amirnia, A. Margaritis & M. Ray - University of Western Ontario

Mercury Reduction at the G.E. Booth (Lakeview) WWTP - A Pioneer in CanadaWilliam Fernandes - Region of Peel, Germana Nunes - Black & Veatch

Using the IFAS Process to Re-rate the Peterborough WWTPStephen Nutt - XCG Consultants Ltd., Patrick Devlin & Krista Thomas - City of Peterborough, and Vincent Nazareth - R.V. Anderson Associates Limited

Spatial Distribution of Bio-Foulants Across Hollow-Fibre Membrane in a Full-Scale Submerged Membrane Bioreactor and their Contribution to Irrecoverable Membrane FoulingVictor Zhang, Amanada Farquharson, & Hongde Zhou - University of Guelph, Michael Theodoulou - GE Water & Process Technologies

Long Term Monitoring of Planned Wastewater Treat-ment Plant Upgrades through the Surface Water Quality Monitoring Program on the Grand, Speed and Nith Rivers Lynette Renzetti & Dana Summach - LGL Limited, Jose Bicudo - Regional Municipality of Waterloo

9:30-10:30 Refreshment Break-Exhibition Area (Metro Ballroom)10:30-11:00

Update on WEAO Fate and Significance SurveyHugh Monteith

Comparative Study of Disinfec-tion By-Products Formation during Wastewater Disinfection with Paracetic Acid vs Sodium HypochloriteMiaoyi Yan, Onita Basu, & Jeffrey Manthorpe - Carleton University

Optimization of Aeration Systems - Energy Effi-ciencies of Turbo Blow-ers and Fine Bubble Difuser SystemsPeter Ollos - Ontario Clean Water Agency

Future Expansion of the Napanee Water Pollution Control Plant John St. Marseille & Marco Vincelli - GENIVAR, Todd Harvey - GNU

Addressing Hydraulic Capacity Limitations in a Membrane Bioreac-tor - the Port McNicoll Experience Melody Johnson & Stephen Nutt - XCG Consultants Ltd., Nick Colucci - Tay Township, Bob Mayberry - R.J. Burnside & Assoc.

Shepard Wetland - The Larg-est Constructed Stormwater Treatment Wetland in CanadaVania Chivers - The City of Calgary, John Pries & David Taylor - CH2M HILL

11:00 -11:30

Occurrence and Fate of Emerging Contaminants during Aerobic and Anaerobic Sludge Digestion and DewateringShirley Anne Smyth - Environment Canada, Sonya Kleywegt - Ontario Ministry of Environment

High Centrates Problem in the Centrifugation of Municipal Digested Sludges, the Cause and a SolutionJohn Jew

Plant Optimization Through Headworks Improvements Christopher George & Shawn Scott - RV Anderson Associates, Brad Johns - City of Greater Sudbury

Ballasted Biological Process Achieves Maryland’s ENR Limits for Nitrogen and Phosphorus without Tertiary FiltrationRobert Backman & Steven Woodard - Cambridge Water Technology Inc.

Trends and Scales of Membrane Bioreactor Applications Around the World and in CanadaSara Arabi - Conestoga-Rovers and Associates

Adapting to Change: Climate Change Vulnerability Assess-ment of the Clairville and G. Ross Lord dams in TorontoFatema Khalfan, Stewart Dickson & John Chadwick - GENIVAR Consultants LP, Ryan Ness - Toronto and Region Conservation Authority

11:30-1:30 Luncheon-Exhibition Area (Metro Ballroom)

P.M.Session 20Pier 5

Session 21Pier 2

Session 22Pier 9

Session 23Pier 4

Session 24Pier 3

Session 25Pier 7 & 8

Certification Exams Dockside 9

PWO - Exhibition Area - Metro Ballroom

Biosolids Management-B New Technologies and Research-B

Energy from Waste Biological Treatment B Watershed IssuesCollections Systems Management C

Operator Certification Exams

Operations Challenge

Chairs: Dean Iamarino Lucyna Mroczek

Chairs: Michael Mark Wayne Parker

Chairs: Elaine Collis Sara Arabi

Chairs: Mike Newbigging Voitek Kozakiewicz

Chairs: Troy Briggs Marek Krynski

Chair: John Himanen Chuck Hudsonroder

1:30-2:00

Biosolids Management Award Presentation

Using Membrane-Aerated Biofilm Reactor (MABR) Pro-cess for Tertiary Nitrification in EffluentsZebo Long & Hongde Zhou - University of Guelph, Lori Lish-man & Peter Seto - Environment Canada, Steven Liss - Queen’s University

Anaerobic Digestion Systems: Decoding the CodesRina Kurian & Allan Martin - RV Anderson Associates Ltd.

St. Clair Township to Achieve Non-Toxic Effluent Using Extended Aeration and UV at New Regional WWTPNancy Liu & Don Kemp - AECOM

Surface Water Quality Modeling of the Middle Grand River to Assess WWTP UpgradesJim Perrone & Jack Gorrie - Stantec Consulting, Mark Anderson - GRCA, Jose Bicudo - Region of Waterloo

Surface Water Treatment for Public Amenities on Toronto’s WaterfrontDean Whittaker & Abraham Khademi - the Municipal Infrastructure Group Ltd.

Operator Certification Exams - Water

2:00-2:30

Sludge Characterization for Municipal Waste Stabiliza-tion Ponds in HondurasMahua Bhattacharya - Black & Veatch, Eric Adams - Massachusetts Institute of Technology

The Compact Upright Bio-reactor for the Elmination of Nutrients (CUBEN) (I): Design and ConstructionManual Alvarez-Cuenca & Maryam Reza - Ryerson University

A Comprehensive Comparative Study on Two and Single-State Aerobic DigestionMirzaman Zamanzadeh & WJ Parker - University of Waterloo

Sustainable Solution to Plant Hydraulic & Treatment Capac-ity Issues - A Case Study of Denis St. Pierre WPCP, Lakeshore, OntarioJian Li & Tony Berardi - Stantec Consulting, Tom Touralias- Town of Lakeshore

Integration of Engineered Wetland-Phosphex to Remove Nutrients and other Contaminants from Wastewater & StormwaterSyed Hussain, David Blowes & Carol Ptacek - University of Waterloo, Gordon Balch & Brent Wootton - CAWT, Fleming College, Jim Higgins - Stantec Consulting

Innovative Design for CSO Control & Treatment: Vertical Treatment Shaft Achieves CSO Control Objectives at a Substantially Lower Costs While Simplifying OperationsKurt Giberson - Public Works Consulting, Saad Ghalib - Ap-plied Engineering Technologies

2:30-3:00

Trends in Global Biosolids ManagementPeter Burrowes, CH2M HILL

Application of Continuous Fill Intermittent Discharge Sequencing Batch ReactorKheir Eddine Khier Chibani - Premier Tech Aqua

Biosolids Gasification: A Possible Emerging TechnologyMohammad Abu-Orf - AECOM Canada

Half Capacity, Full Commitment: Staging at Baker Road WWTPJianrong Liu, Ronnie Wang, & Mina Yousif - GENIVAR Consultants, Bill Slack & Mark Solomon - Region of Niagara

Keeping It Real: Risk Based Efflu-ent StandardsMichael Gundry - AECOM Canada Ltd.

Enhanced Monitoring and Analysis Methodologies for I/I ReductionEdward Graham & Chris Steb-bing - Cole Engineering

3:00-3:30

CCME Canadian Biosolids Management StrategyShelly Bonte-Gelok - Ministry of Environment

Inference by the Activated sludge Matrix in the Measure-ment of SMP Chris Potvin & Hongde Zhou - University of Guelph

From Best Practices to the Plant of the Future: The WERF Optimization ProgramGeorge Crawford - CH2M HILL

Process Evaluation and Selec-tion for the Burlington Skyway WWTP Expansion Jeremy Kraemer - CH2M HILL, Mickey Liu & Steve English - Region of Halton

Addressing Policy 1 and Policy 2 Receiving Water Bodies With Respect ot PhosphorusEmily Ghosh, Michelle Albert & Jianrong Liu - GENIVAR Consultants, Mohammed Sajjad Khan - Ministry of the Environment

3:30-4:30 Refreshment Break - Exhibition Area (Metro Ballroom)

3:30-5:00 Operations Challenge Awards and Totally Wasted Gameshow - Exhibition Area (Metro Ballroom)

6:00-7:00 Cocktails Pre-Banquet Reception (Frontenac Ballroom)

7:00-10:00 Banquet (Frontenac Ballroom)

31 Spring 2011INFlueNTSClick HERE to return to Table of contents

40 WEAO TECHniCAl SyMPOSiuM & OPCEA EXHiBiTiOnTH ANNUAL

Special Thanks to Our Sponsors

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40 WEAO TECHniCAl SyMPOSiuM & OPCEA EXHiBiTiOnTH ANNUAL

2011 Conference Committee Membersrob Anderson chair/Mc h2Flow equipment inc.

neil Awde past chair AecoM

Anne baliva speaker Gifts WeAo

selvihan balcioglu new professionals

Gary burrows board liason/sponsorship city of london

Darla campbell proceedings amonavi consulting group inc.

lloyd clarke local Arrangements WiKA instruments ltd.

ryan connor Technicial program ch2M hill canada ltd.

Dave evans Audio Visual requirements r.V. Anderson Associates

Frank Farkas signs/banners/opceA rep./sponsorship spD sales limited

rick Fisher opceA exhibition hayward Gordon

Janice Janiec Water for people canada city of Guelph

catherine Jefferson Marketing/promotions/Media relations WeAo

Marc Johnson communications officer & conference brochure Wastecorp pumps

John levie Award luncheon/5s/banquet programs/opening session/Keynote speaker Asi Group limited

norma linkiewicz pWo session/Totally Wasted Game show/operations challenge region of niagara

erin longworth budgeting AecoM

Michael Mark WWT&T committee liason/sponsorship MYM consulting services

Mark reeves opceA exhibition can-AM instruments

Matt simons new professionals AecoM

richard Todd banquet entertainment city of london

Julie Vincent conference pocket program/operator certification exam WeAo

Conference registration...For all the conference information at a glance, visit our website at www.weao.org. To register, please fill out and return the accompanying registration form. You can

also register for the conference on-line. When you visit the website for the annual conference information, be sure to check out the rest of the site. if you want to receive

future information, register your e-mail address by following the instructions on the home page. We look forward to seeing you in Toronto!

WEAOThe Association is the authorita-tive information source for water and wastewater treatment issues and technology. WeAo’s 1,350 members come from governments, universities, indus-tries, consulting firms, equipment suppliers, contractors, and wastewater collection/treat-ment personnel. For conference information, contact WeAo, p.o. box 176, Milton, on l9T 4n9, phone 416-410-6933 x1, or e-mail [email protected] or visit www.weao.org.

OPCEAThe ontario pollution control equipmentAssociation is a non-profit organization dedicated to assisting member companies in the promotion of their equip-ment and services. originally founded in 1970 opceA has grown to more than 150 member companies whose specialized fields encom-pass a broad spectrum of equipment and services for the generalized air and water pol-lution prevention and control marketplace. For membership or exhibit information, call Kelly Madden 705-725-0917, Fax 705-725-1068.

PWOThe professional Wastewater operators (pWo) is a mem-bership segment acting as a committee of the WeAo. The primary goal of pWo is to enhance the recognition and professional development of the people whose work involves performing the hands-on management tasks needed to operate and maintain municipal and industrial wastewater collection and treatment facilities. For informa-tion on operations challenge team registration, contact norma linkiewicz 905-685-1571 x 3286 or [email protected]

Spring 201134 INFlueNTS Click HERE to return to Table of contents

The Water Environment Association of Ontario (WEAO)invite you to a fundraiser for

Water For People Canada

Ask about our sponsorship opportunities. Reserve your space on the floor today!Email: [email protected] or [email protected]

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35 Spring 2011INFlueNTSClick HERE to return to Table of contents

40 WEAO TECHniCAl SyMPOSiuM & OPCEA EXHiBiTiOnTH ANNUAL

Would you like the opportunity to show off your skills competing against other ontario wastewater professionals? Then the 2011 Operations Challenge is the place to be.

The operations challenge committee (occ) would like to extend an invitation to all wastewater professionals to compete in the operations challenge at the 40thAnnual WeAo conference and opceA exhibition.

now in its 21st year, the one-of-a-kind Wastewater olympics will take place April 12 at the Westin harbour castle confer-ence centre in Toronto, ontario.

The competition consists of five events:• CollectionSystems• Laboratory• Maintenance(pump)• ProcessControl• Safety

Teams make repairs to pumps, enter con-fined spaces, work on collection systems, troubleshoot process control problems, and perform designated laboratory proce-dures, while racing against the clock. The events are held simultaneously and provide for a lot of action and excitement.

Teams are comprised of four members and are judged on accuracy and the time it takes to complete a series of tasks for each event. penalty points are assessed by the judges when specific event tasks are not performed correctly or in a safe manner.

operations challenge is a wonderful learn-ing tool, allowing team participants to use state-of –the-art equipment that requires them to learn the latest techniques. The challenge is fun and interesting for both team members and spectators alike. ben-efits of fielding and supporting a team are numerous and who would not want to own bragging rights for victory over some of the best wastewater professionals in ontario? if that is not enough, the winning team has the opportunity to compete against the best in north America at WeFTec 2011 in los Angeles, california.

The operations challenge committee also serves as organizer for the Totally Wasted Game Show (TWGS), which is fashioned after a popular television game show. The TWGs quizzes contestants with questions comparable to those applicable to their

daily activities. Teams consist of a consul-tant, an opceA supplier and a professional operator. The game is highly competitive and great fun for participants and spectators.

The Professional Wastewater Operator Technical Session and Tour offers the operators the opportunity for continuous learning and professional development within the wastewater industry. This year, the tour will be at the r.c. harris water treatment plant, which is both a heritage historical site and a civil engineering his-torical site. it is a 950-million litre per day plant that was built in the 1930s and also has a 40-million litre per day residual waste treatment plant underground to treat the re-

siduals from the plant. A bus will leave from the Westin harbour castle main entrance at 12:45 pm and return by 4:00 pm. pre-regis-tration for the tour as part of your conference registration is required. space is limited and will be on a first come, first served basis. This year’s technical session will certainly be of interest to wastewater operating profes-sionals. check the conference brochure for more information on the sessions.

if you would like to be involved with the occ, either by competing or volunteering on the committee, please contact the 2011 operations challenge committee chair norma linkiewicz at 905-685-4225 ext.3286 or [email protected].

Norma Linkiewicz M.L.T., C.E.T., Niagara Region

2011 Operations Challenge

OCWA Jets 2010 WEFTEC Ops Challenge

Durham Sludge Hammers 2010 WEFTEC Ops Challenge

Spring 201136 INFlueNTS Click HERE to return to Table of contents

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In 2006, after six years of building equipment for Arlat, Price-Schonstrom Inc. aquired the assets and began operating Arlat as an independant division. The robust designs have carried forward and the product line has expanded by introducing new items such as the Spiral channel screen, which is also used as part of our septage receiving station. We have also transformed our TS travelling screen to create a product platform that will allow our customers to change the screening technology from a �lter screen belt; to a multi-rake bar screen; or perforated screen belt, while utilizing the same structural frame and controls system.

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38 Spring 2011INFlueNTS Click HERE to return to Table of contents

INSIDEEvolution of Sewage Pumping Stations ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40

Variable Speed Pumping In Parallel .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45

Optimizing Pumping at Sudbury’s Wastewater Treatment Plant ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50

Harmony Creek Water Pollution Control Plant, First Comprehensive Certificate of Approval for Sewage Works in Ontario ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52

Odour Control at Sewage Pump Stations in the City of London ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56

Sewage Pumping Station Capacity: Consider the Forcemain A Case Study of the Stevensville Sewage Pumping Station ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59

To Classify or Not To Classify Case Study - Hespeler Raw Sewage Pumping Station Design; Electrical Classification ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61

Kitchener WWTP Effluent Pump Station – Increased Efficiencies by Facility Siting and Design Modelling ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .66

Remote Monitoring and Control of Wastewater Pumping Stations in Chatham-Kent ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .71

Odour Control Design For Lift Stations/Pump Stations ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .74

Click HERE to return to Table of contents 39 Spring 2011INFlueNTS

Evolution of Sewage Pumping Stations

MICHAEL GuNDRy, P.Eng., PMP, AECOM

The modern sewage pumping station has evolved over the years, primarily as a result of needed improvements to increase pumping station reliability. From the early steam driven pumps to the current state-of-the-art pumps, there have been several technology

leaps which have shaped the design and construction of our pumping stations. The technology leaps have included first the need to move sewage from a low elevation to a higher one, the advent of the electric motor, and, finally, micro-processor control systems.

Early sewage collection systemsThe first sewage collection systems were developed around 3,000 B.C. and channelled wastes from individual homes to a nearby river. As sewage col-lections systems evolved, they typically followed the natural contours of the land discharging to the adjacent water-courses. Over time, these watercourses became open sewers resulting in odours and creating a source of disease. Once the link between sewage and its effects on health was made, sewage treatment plants started to be developed.

The first sewage treatment plants were constructed in the 1850s. This resulted in the need to elevate sewage from one sewershed to another for discharge to a centralized treatment facility. It is interesting to note that, by1905,95%ofurbancentresstilldischarged sewage directly to the envi-ronment. It was not until the 1930s that most cities started to construct treatment plants.

Early sewage pumping stationsThe first sewage pumping stations were operated using plunger/piston-type pumps, either driven by steam or compressed air. By 1887, several patents had been issued for pneumatic and stream driven pumps. Archimedes screw pumps, which were developed in the 1880s, were also used to convey sewage. Most of the stations were manually controlled and fully staffed when in operation.

Centrifugal pumps have been manufactured since 1818. The modern impeller that we know today was first developed in 1851 and had an efficiency of68%.However,centrifugalpumps

Early Submersible Pump design - Courtesy of ITT Flygt

Modern dry pit submersible pump

were not used to any great extent until the advent of the electric motor, likely due to the fact that steam driven machines could not develop sufficient revolutions per minute (RPM) to effectively convey substantial volumes of liquids.

Electric motorA major technological leap in sewage pumping station design occurred after the alternating current (AC) motor was patented in 1888. It still took approxi-mately 30 years, until 1915, before the early AC motors could be used in com-mercial applications. The first electric powered sewage pumping stations were typically dry well/wet well-style sta-tions with centrifugal pumps located at the low level of the dry well to provide a flooded pump suction. The motors were located above the flood level to ensure that the motor would not be damaged if the dry well flooded.

The first submersible-style sewage pump was developed in 1947. This design was refined over the years and the first modern submersible pump, as we know them today, entered into produc-tion in 1956. With submersible pumps, the pumps could be located within the wet well, reducing the sewage pump-ing station construction costs through the elimination of the dry well. Larger pumping stations were still constructed as dry well/wet well-style pumping stations. The early submersible sewage pumps were cooled by the sewage in the wet well. In the 1990s, improve-ments were made in submersible pump designs which allowed them to be cooled either through external water-type cooling sources or by the liquid they were pumping. This has now allowed submersible sewage pumps to be used in dry pit applications to replace the shaft-driven-type sewage pumps. The dry pit submersible pumps provide protection of the pump and motor if the dry well is ever flooded. Prior to the advent of the dry pit submersible pump, most

40 Spring 2011INFlueNTS Click HERE to return to Table of contents

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dry well/ wet well sewage pumping stations relied on shaft-driven pumps with motors located above the poten-tial dry well flood elevation. These shaft-driven pumps are relatively efficient, however, the shaft drives require maintenance. The dry pit sub-mersible pump eliminated these shaft drives, while still providing protec-tion of the motor against pumping station flooding.

ControlsDepending upon the application and the eventual discharge of the sewage, variable volume pumping can be desir-able. The first variable flow pumping control systems were eddy current drives or two-speed motors.

By the early 1980s, electronic variable frequency drives came on the scene, which provided for variable flow control of pumps than the eddy current drives and two-speed motor systems.

Pumps in most sewage pumping stations today are controlled using ultrasonic level devices with floats as a backup system. The ultrasonic

level devices were first developed in the 1970s. Prior to this, most pumping stations were stopped and started by electromechanical float systems. The control logic for these early stations was based on relays and timers using relay logic.

A programmable logic control-ler (PLC) or remote terminal unit (RTU) provides the brain of the sta-tion; starting and stopping pumps, sequencing pumps and monitoring systems and alarms. The first Super-visory Control and Data Acquisition (SCADA) systems were developed in 1970 and distributed control systems developed in the 1980s. As technol-ogy improved, RTUs were developed in the late ‘80s-early ‘90s, and, by the mid-1990s, PLC’s were becoming the standard for pumping station control and operating systems.

ConclusionAs our population has increased, the need to convey sewage to treatment works for the protection of the environ-ment and human health has become increasingly more important. Sewers

are located at low elevations in the drainage system, and this has resulted in the need for pumping systems to convey this sewage to higher eleva-tions. As technology has improved, the reliability of sewage pumping stations has improved as well. The first sta-tions were fully staffed and operated manually. Improvements in controls and station reliability over the years has allowed sewage pumping stations to be automated with protection systems developed to ensure the uninterrupted flow of sewage even with mechanical and electrical failures. Also, reliability features have been built into pumping stations through advances in technol-ogy, which have reduced station failure rates and improved operation.

Sewage pump impellors are designed to ensure the passage of solids in the wastewater. These designs minimize pump clogging, but sacrifice pump effi-ciency. There have been some advances in this area recently and, given the move to sustainability, the next techno-logical leaps in sewage pumping station design may be focussed more on energy efficiency.

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42 Spring 2011INFlueNTS Click HERE to return to Table of contents

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The ‘AQUA Wetland System’“constructed wetland for treatment of septic tank effluent”

For more information please contact Lloyd Rozema at:

cell: 905-327-4571email: [email protected]

AQUA Treatment Technologies Inc. designs and installs the ‘AQUA Wetland System’ (AWS) for tertiary treatment of many types of waste water. The ‘AQUA Wetland System’ is operated out of doors for year round operation. Operation and maintenance costs are a fraction of those associated with conventional wastewater treatment technologies. Recent projects include wetland treatment systems at the Chip-pewa Creek Conservation Area (Niagara Peninsula Conservation Authority) and at the Timberhouse Country Inn Resort (Brighton) for treatment of 71,250 L/day and 49,774 L/day respectively of sanitary sewage (with septic tank pre-treatment & discharge to an Area bed). We are currently working with OMAFRA to obtain approval under the OBC for treatment of high strength milkhouse washwater.

We routinely work with consulting and engineering companies delivering the AWS to their clients and have available two mobile constructed wetlands trailers for use in pilot studies.

In Ontario the AWS has been approved for use by the Ontario Ministry of Environment through over 40 Certificates of Approval for treatment of sanitary sewage, landfill leachate and various types of agricultural wastewater.

Variable speed (VS) pump operation is common for most water and wastewater treatment plants and pumping stations that I visit today. When asked why they are using variable speed pumps, the usual answer is to control flow; rather than to save power. In fact, variable speed pump-ing can do both, if set up correctly.

With the popularity today of vari-able speed drives (VFDs), pumps are now being asked to operate at a greater range of flows and pressures, which is causing some problems in the field. I would like to take this opportunity to highlight a couple of these problems with which I have been associated that are quite typical of many others I see.

First, let us lay some groundwork. A parallel pumping situation occurs when more than one pump, separated

Variable Speed Pumping In Parallel

JEFF JOHNSON, C.E.T., President, ASL Roteq Ltd.

by check valves, pumps into a common discharge header at the same time. As each pump is started up, the increase in flow causes a greater increase in friction losses. As these losses increase, so too does the pressure that each pump must overcome. From a pump curve stand-point, this moves the pump operating point to the left, farther away from its sweet spot (known as best efficiency point (BEP)) and closer to its not so sweet spot (known as minimum con-tinuous stable flow).

In short, this moves the pump from smooth operation towards rougher oper-ation. The system curve determines how fast this transition occurs. We all know how uncomfortable extreme air turbu-lence can be when flying on an airplane. With continued turbulence, the pilot has

the ability to make adjustments to get away from the turbulence. A pump is no different, except there is usually no pilot to make the change.

Quite often, a full speed pump is operated with a variable speed pump at the same time. Many people do this to ‘trim’ the flow required for various operational reasons. This causes the variable speed pump to operate to the left of its BEP. The amount of trim and system curve determines how far to the left it will operate.

The first sign of trouble shows up in high vibration, noise and/or cavitation issues. These issues, if not addressed, can lead to extensive problems and repairs.

After repairing many pumps over the years, I have the advantage of actu-ally seeing the damage that is caused by these operational issues. The following two examples are typical of what I see.

Figure 1 shows cavitation damage on a bronze impeller. This impeller was taken from a multi-stage high lift verti-cal turbine pump in the Belleville Water Treatment Plant.

The customer has five identical high lift pumps, where three are variable speed and two are constant speed. After many years of operation, it was decided to operate one variable speed pump with one full speed pump in parallel. This went on for several years until the variable speed pump performance dete-riorated and had to be overhauled. The damage you see was discovered when the pump was dismantled.

Notice the severe cavitation damage on the leading edge of the suction vanes and on the inside diameter of the eye. This cavitation damage is known as recirculation cavitation and is caused by running a pump too far to the left of BEP. All seven impellers of this multi-stage pump suffered similar damage to what is seen here.

Figure 2 shows a set of vibration plots for a large variable speed sewage pump installed at the City of Brockville, Pump Tag P2.

Figure 1 – Cavitation damage on a bronze impeller

45 Spring 2011INFlueNTSClick HERE to return to Table of contents

Figure 3 shows a set of vibration plots for a large variable speed sewage pump installed at the City of Brockville, Pump Tag P3.

To orient you, the X axis is the revo-lutions per minute (RPM) of the pump and the Y axis is the vibration velocity in inches per second. Vibration velocity is an indicator of vibration severity where 0.2 would be considered smooth to rough and the highest level shown of 0.7 would be considered quite rough. (i.e., turbulence that should be avoided)

Both of these pumps operate together on a VFD. The operating system calls for both pumps to operate at the same speed, moving the speed up or down depending on wet well levels. At 975 RPM, P3 operates at low vibration and P2 operates at high vibra-tion. At 1055 RPM, P2 operates at low vibration and P3 operates at elevated vibration levels. With all the possible combinations, it is easy to see one of these pumps is going to operate at very high vibrations for some period of time.

Every pump design has a range of operation to the right and left of BEP where it can operate trouble free. Sewage pumps are designed to operate typically between50%and120%ofBEP.Highlift vertical turbine water pumps are designed to operate typically between 80%and110%ofBEP.Thisisafunctionof the suction specific speed of a pump.

The root cause in both of these cases is running off BEP. In Belleville’s case, they were trimming a variable speed pump too far back against a constant speed pump and causing recirculation cavitation in the variable speed pump. In Brockville’s case, they were running pumps with mismatched curves, thus causing one of the pumps to run off BEP. Brockville also has some other issues with the pumping station that further complicated the situation.

In each of these cases, the problems and solutions are far more complex than can be discussed in this article. However, there are a few things you can do to help your situation:• Findoutwhereeachpumpisoperat-

ing on its curve at all times.• Ifyoumusttrimavariablespeed

pump with a full speed pump, check with your pump manufacturer and work out how far back you can go. If you are not sure, then use vibra-tion analysis to check.

• Avoidinstallingpumpswithmismatched curves.

• Makesureyoucheckalloperatingconditions from low to high flows to ensure problems do not occur late at night or on weekends.

• Ifyoucannotobtaingoodhydraulicdata from the pump manufacturer, you can use vibration analysis to see how far off BEP you are operating.

• Considerhiringaconsultanttowork with your pump supplier to do an optimization study.

Keep in mind that, if you operate each pump as close to BEP as possible at all times and satisfy the flows and liquid levels required for operations, you will be operating as energy efficient as pos-sible. The money invested to get there will provide a payback in energy savings.

Please join me in Toronto at the Annual WEAO Technical Symposium and OPCEA Exhibition in the PWO technical session to review these cases in more detail and observe the actual damaged impellers.

Figure 2 – Vibration plots for a large variable speed sewage pump (City of Brockville Tag 2)

Figure 3 – Vibration plots for a large variable speed sewage pump (City of Brockville Tag3)

Pump 2 Inb Rad 2

Pump 2 Inb Rad 1

Pump 2 Out Rad 2

Pump 2 Out Rad 1

Pump Speed (RPM)

Vibr

atio

n Le

vel (

in/s

ec)

0.8

0.7

0.6

0.5

0.4

0.3

0.2

0.1

0850 900 950 1000 1050 1100 1150 1200 1250

Pump 3 Inb Rad 2

Pump 3 Inb Rad 1

Pump 3 Out Rad 2

Pump 3 Out Rad 1

Pump Speed (RPM)

Vibr

atio

n Le

vel (

in/s

ec)

0.6

0.5

0.4

0.3

0.2

0.1

0850 900 950 1000 1050 1100 1150 1200 1250

46 Spring 2011INFlueNTS Click HERE to return to Table of contents

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Chemical Feed - Dry^ Auger Style Feeder^ Dry Feeder Complete Systems^ Eductors

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Maintenance

Chemical Feed - Liquid^ Chemical Dilution Systems^ Chemical Feed Panels, Skids,

& Systems^ Chemical Feed Pumps

(metering pumps)^ Polymer Dilution & Feed

Systems

Chemical Handling^ Adsorbants^ Drum & Carboy Wrenches^ Drum Pumps^ Secondary Containment^ Spill Kits^ Tanks^ Transfer Pumps^ Weighing Systems

Chlorine Handling^ Chlorine Connection

Accessories^ Chlorine Cylinder Scales^ Chlorine Emergency Kits^ Chlorine Feed Equipment^ Chlorine Gas Detectors^ Chlorine Tonner Lifting Bars

Metering Pump Accessories^ Back Pressure Valves^ Calibration Cylinders^ Pressure Relief Valves^ Injection Quills^ Corporation Stops

Mixers^ Static Mixers^ Tank Mixers

On-Line Instrumentation^ Alkalinity^ Ammonia^ Chlorine^ Chlorine Dioxide^ Colour^ Conductivity^ Copper^ Dissolved Oxygen^ Fluoride^ Hardness^ Hydrazine^ Monochloramine^ Nitrate^ Organics^ ORP^ Oxygen Scavenger^ Ozone^ Particle Counting^ pH^ Phosphate

^ Silica^ Sludge Level^ Sludge Volume^ Sodium^ Suspended Solids^ Temperature^ Total Organic Carbon (TOC)^ Turbidity^ UVT

Portable & LaboratoryInstruments & Supplies^ Electrochemical Products

pHConductivityDissolved OxygenTemperature

^ Filter Paper^ Glassware^ Jar Testing Equipment^ Laboratory Supply^ Microbiological Testing

Products^ Portable Systems^ Spectrophotometers &

Colorimeters^ Test Kits^ Turbidimeters^ UVT

Process^ Alarm Dialers^ Controllers^ Data Loggers & Recorders^ Sample & Cooling Panels

Scales & Weighing^ Electronic & Hydraulic

CylindersTonnersDrumsTanks

Tanks^ Day Tanks^ Mix Tanks

Ultraviolet^ Air Disinfection^ Industrial/Municipal^ Pond & Lake Reclamation^ Potable Water^ Replacement Lamps

Acids^ Acetic^ Ascorbic^ Battery^ Citric, Liquid/Dry^ Cyanuric^ Fluorosilicic^ Formic^ Hydrochloric

Inhibited (Muriatic)^ Nitric^ Oxalic^ Phosphoric^ Sulphamic^ Sulphuric^ Sodium Bisulphate

Alkali^ Aqua Ammonia^ Calcium Hydroxide (Hydrated Lime)^ Potassium Hydroxide^ Sodium Carbonate (Soda Ash)^ Sodium Hydroxide, Liquid/Dry

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Hydroxychlorosulphate^ Polymers – dry, liquid, & emulsion

Cationic / Nonionic /Anionic^ Sodium Aluminate

Corrosion Inhibitor /Sequestriants^ ATMP^ HEDP^ Phosphates – Ortho/Poly & Poly^ PBTC^ Sodium Hexametaphosphate^ Sodium Silicate

De-chlorination^ Ammonium Sulphate^ D-Chlor Tablets^ Sodium Bisulphite^ Sodium Metabisulphite^ Sodium Sulphite^ Sodium Thiosulphate

Disinfectants^ Calcium Hypochlorite^ Chlorine Gas^ Sodium Hypochlorite^ Tabex Chlorinating Pucks^ Tabex Shock N’ Swim

Filtration^ Activated Carbon – powder

and granular in coal, woodand coconut shell bases

^ Anthracite / Coal^ Diatomaceous Earth & Cellulose^ Manganese Greensand^ Sand / Gravel / Quartz^ Floran – Media Master and

Filter Fit

MembraneRO / Ultra and Nano Filtration^ Acid Cleaners^ Alkaline Cleaners^ Anionic Surfactants^ Anti-scalants^ Biocides^ Genesys Membrane Services

Oxidants^ Anthium Dioxcide^ Calcium Peroxide^ Floran Catalyst^ Hydrogen Peroxide^ Potassium Permanganate^ Sodium Chlorite

^ Sodium Nitrate^ Sodium Nitrite^ Sodium Percarbonate

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The City of Greater Sudbury’s largest wastewater treatment plant (WWTP) has had a number of operational issues over the past 15 years, primarily related to capacity limitations of the lift station during peak wet weather flows and untreated domestic wastewater bypass-ing the plant. Along with these capacity problems, the wastewater is ‘double pumped’ through the treatment process at the plant. This intermediate pumping creates a bottleneck in the plant process and represents a significant operational and maintenance cost.

The Sudbury WWTP lift station was constructed in the late 1960s to pump domestic wastewater from the City’s network of rock tunnels to the surface. Since 1994, the City of Greater Sudbury has made plant improvements, reduced flows, and replaced four of the six original lift station pumps. However, to facilitate growth in the area and future expansion of the plant, including upgrading the head works and eliminating the intermediate pump-ing, further upgrades to the lift station pumps are needed.

The City retained R.V. Anderson Associates Limited (RVA) to design the upgrades to the lift station, replacing the two remaining original pumps to increase the capacity of the station.

The project will enable the City to use existing infrastructure and defer

Optimizing Pumping at Sudbury’s Wastewater Treatment Plant

CHRIS GEORGE, P.Eng and SHAWN SCOTT, P.Eng, R.V. Anderson Associates Limited

constructing a new lift station, saving an estimated $30 million. It will also save the City and its taxpayers money by removing the intermediate pumping station, which will eliminate the bottle-neck and the associated operational and maintenance costs.

The construction of the upgrades was awarded in August 2010. Con-struction is expected to be complete by April 2011 for a cost of approximately $5 million.

Figure 1 shows the Sudbury WWTP and lift station.

Figure 2 shows the lift station layout.

Saving the existing infrastructureThe preliminary design was undertaken to determine whether the new pumping upgrades could handle the projected peak flows without having to build a new facility. Risks and different con-figurations were considered, including moving the smaller pumps to the end of the wet well to improve the wet well configuration, constructing a larger equalization pipe between the wet wells to improve pump suction, and using the surcharge in the rock tunnel to increase pumping capacity. The preliminary hydraulic review included an additional 2.5 m of static head, so the intermedi-ate pumping station can be removed. The majority of this additional static head was accommodated by increasing

the diameters of each of the six force mains by 100 mm and upgrading two of the pump impellers, which increased the firm capacity of the lift station to 326,592 m3/day (from the existing capacity of 253,670 m3/day).

With the proposed modifications and minor surcharging in the rock tunnel, the lift station could theoreti-cally accommodate the future peak flow of 386,000 m3/day with the larg-est pump out of service and an ultimate peak flow of 432,000 m3/day with all six pumps in service – meeting the future peak flow requirements.

The preliminary analysis showed that peak flows and elevated head works could be managed, but the City and RVA questioned the performance of the wet well and pumps under these operating conditions, partly because the ultimate capacity of the lift station outlined in the 1960s was 244,125 m3/day,only63%oftheproposedupgraded capacity. This led to ITT Water and Wastewater completing a Computational Fluid Dynamic (CFD) modelling analysis of the new pumping configuration.

The ultimate goal of the CFD mod-elling was to evaluate the proposed pumping configuration and to provide recommendations to improve hydrau-lic pumping efficiency. A 3D computer model of the proposed configura-

Figure 2 – General Arrangement of Lift Station

Figure 3 – Flow Paths at Pump 2B During a Peak Flow Simulation

Figure 1 – Aerial View: Sudbury WWTP and lift station.

50 Spring 2011INFlueNTS Click HERE to return to Table of contents

tion was constructed and tested by simulating different flow scenarios, using a CFD++TM unified grid model-ling program provided by Metacomp Technologies. The pumps were modelled under five base pumping sequences to determine worst-case scenarios, and modifications were incorporated into the subsequent models. These sequences formed the final optimization results and the basis of recommendations.

Figure 3 shows flow paths at pump 2B during a peak flow simulation.

The modelling showed that the majority of the flow scenarios could be managed with the existing wet well and proposed pumping configuration. However, modifications were necessary to account for the vortexing revealed in the peak flow simulations. The accompanying high swirl angles were caused by the abrupt flow transition from the rock tunnel inlet to the wet well. To reduce the high swirl angles, guide vanes were employed inside each pump suction hood. The next optimization modelling scenarios then confirmed that the guide vanes could reduce swirl angles to an acceptable level during peak flows.

In addition, the modelling revealed that an equalization line had no impact on the flow distribution in the wet well, since the maximum liquid level difference between the wet wells in the different flow scenarios was negligible. The modelling also determined that moving the small pumps to the end of the wet wells did not offer hydraulic improvement, but it did identify that sedimentation – which would reduce the effective capacity of the wet well – can occur from low velocities at the end of the wet well. This sedimentation risk may be reduced by regularly flushing the wet wells at full pump capac-ity, which will be incorporated into operational recommendations.

The CFD modelling proved that the pumping upgrades could work and the wet wells could handle future peak flows. It also suggested some modifications to improve plant performance. This confirmed that the City could confidently use the exist-ing infrastructure and defer having to build a new facility.

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51 Spring 2011INFlueNTSClick HERE to return to Table of contents

Harmony Creek Water Pollution Control Plant, First Comprehensive Certificate of Approval for Sewage Works in Ontario

EDGARDO TOVILLA, P.Eng., Ministry of the Environment; and THOM SLOLEy, P.Eng., The Regional Municipality of Durham

Ontario’s first municipal sewage works Comprehensive Certificate of Approval (CCA) under section 53 of the OntarioWaterResourcesAct was issued in December 2010 in a collaborative effort between the Ministry of the Environment (MOE) and the Regional Municipality of Durham (Durham Region). The CCA initiative is part of the Innovation Agenda and the OpenforBusinessAct (Bill 68), which shows the MOE’s commitment towards modernizing the provincial regulatory framework and moving to global best practices. This achievement also builds on the goals of the Modernization of Approvals by improving timeliness and regulatory processes.

A CCA is a new type of approval that provides a certificate holder with the operational flexibility to make changes to defined aspects of the works without a requirement to obtain further approvals. It provides the owner with a more cost-effective process and reduces the delays associated with the trad-itional approvals process. The CCA is built on lessons learned and past successes of implementing comprehen-sive approvals for the air emissions and municipal waste transfer stations.

BackgroundThe Ministry’s current approvals system is focused on issuing Certificates of Approval (CofA). Under Ontario’s environmental laws, this system remains relatively inflexible in requir-ing that all activities go through the same approval process regardless of the complexity or potential risks the activ-ity may present. A CofA places legally binding requirements on the owner or operator of a facility to conduct activities in a way that prevents and

minimizes impacts to the environment, as required under the Ministry’s acts, regulations, policies and guidelines.

Typically, when a change is made to a facility, the CofA must either be amended or replaced by a new CofA. As a result, the approval holder is often required to submit multiple applica-tions over the lifetime of the facility, often for minor changes, which are low risk and environmentally insignifi-cant. This also prevents the MOE from focusing more resources on potentially unique or more complex projects. In the past, this has resulted in creating a tremendous backlog of applications, costing certificate holders and the public time and money. The Ministry has been using the current CofA pro-cess for more than 30 years.

The Harmony Creek Water Pollu-tion Control Plant (WPCP) is a sewage treatment plant that services the City of Oshawa and the Municipality of Clarington (Courtice) urban areas. The plant was built in a number of phases,

since the initial construction of Plant 1 in 1952. The subsequent construc-tion of Plant 2 took place in the 1970s. In December of 2007, approximately 50%ofthecapacityofHarmonyCreek WPCP was diverted to the new Courtice WPCP in Courtice, East of Oshawa, and Plant 1 in Harmony Creek, which had reached the end of its useful life, was decommissioned.

With Harmony Creek WPCP Plant 1 decommissioned, its historical record of compliance, and with no plans to expand Plant 2, this presented a favourable scenario for both MOE and Durham Region to use this project as a pilot to develop the first municipal CCA in Ontario.

The CCA for Harmony Creek WPCPThe CCA provides to Durham Region a simpler approach to make future changes for those activities that are less complex, and/or pose a lower risk to the environment. However, Durham Region is required to adhere to specific

New Courtice WPCP

52 Spring 2011INFlueNTS Click HERE to return to Table of contents

Coarse Bubble Mixing SystemsMaintenance Free Mixing Systems for High Solids Applications

The Municipality of Halton has elected to utilize Tideflex® Coarse Bubble Diffusersbecause they are the only diffuser available on the market that will not allow solidsand liquids to backflow into the air distribution piping. Backflow of solids will resultin clogging of the aeration system and eventual shutdown of the processes. Thisresults in significant maintenance labor to drain tanks, clean diffusers and pipingand re-initialize the process. Tideflex® Diffuser Systems are able to be installed andleft alone with no maintenance required. Operators can cycle their blowers on andoff for energy savings and process control without fears that the system will becomeclogged and shut down. Several municipalities across Ontario have standardized on the Tideflex® Systems when it comes to applications where residual solids are contained within the process.

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Syntec is one of Ontario’s leading Manufacturers Representatives in both Municipal and Industrial sectors. The combined expertise of Syntec and our manufacturing partners, enables our team of professionals to provide solutions in all aspects of valving controls and instruments; whether it be correct application selection or problem solving. We

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standards, design codes, MOE guid-ance documents and industry best management practices. The operational flexibility built into the CCA allows for future changes within operational criteria established by the MOE, which include the following:• Modificationstothesewageworks

provided that there are no changes to the effluent quantity, quality and discharge location(s).

• Modificationstothesewageprocessequipment, provided that there are no alterations of processes.

• Modificationstotheoperationsofthe works that is consistent with the function of the approved operations.

• Modificationstothesewageworksthat are routine, predictable and are environmentally insignificant.

During the application process, Durham Region developed support-ing documentation and complied with additional consultation requirements for the CCA that included:• Anengineer’sreportthatdescribes

the treatment process units, the conceptual and/or preliminary engin-eering information that supports the Operating Envelope, and the pro-posal for pre-approved Schedule A and B modifications under the CCA.

• MandatoryconsultationwiththeMOE district office.

• EnvironmentalBillofRights enhanced posting of proposed amendment to the existing CofA.

Under the CCA, the pre-approved activities are divided into Schedules

A and B. Schedule A pre-approved activities include generic types of works associated with the ongoing operation and maintenance activities of the plant requiring minimal engineering design work prior to implementation. Conversely, pre-approved activities under Schedule B may require detailed engineering design and other supporting information prior to implementation.

Prior to implementing any pre-approved works under the Harmony Creek WPCP CCA, Durham Region is required to demonstrate ongoing com-pliance with Section 53 of the OntarioWaterResourcesActand other perfor-mance requirements in accordance with the conditions in the CCA through a notification process. The notification process involves the completion of the Notice of Planned Modifications form and includes the preparation of:• Adescriptionofthemodification

to the sewage works, including an assessment of the anticipated environmental effects of the change.

• Updatedversionsof,oramendmentsto, all relevant technical documents associated with the modification.

• SignedstatementsbyDurhamRegion and by a professional engin-eer declaring that the modifications being carried out are within the pre-approved Operating Envelope of the CCA and that the changes to the operations are consistent with industry’s best management prac-tices and are in compliance with EAA, EPA, and OWRA, and will not result in an adverse effect to the natural environment.

After completing the notification process for Schedule A pre-approved activities, Durham Region is required to document the process and file it with the CCA for future inspections by the MOE. Durham Region is also required to submit to the MOE a bi-annual report that includes the Schedule A activities implemented to date. There are no submission requirements prior to implementing Schedule A pre-approved works by Durham Region.

For Schedule B pre-approved activi-ties, Durham Region is required to submit a Notice of Planned Modi-fications to the MOE, signed by an independent professional engineer, along with its supporting technical documentation. In turn, the MOE is required to respond to Durham Region on whether they are able to proceed with implementation of the proposed modifications within 30 days after the notification is received by the MOE.

The CCA for sewage works is a step forward in the implementation of the Modernization of Approvals initia-tive under the OpenForBusinessAct and it is in line with the continuous improvement that leads to effective, ongoing protection of the environ-ment and human health. The CCA issued for Harmony Creek WPCP was completed as a pilot process by the MOE and is opening the window for more municipal CCAs to follow. While the CCA may not be a good fit for all municipal WPCPs in Ontario, it provides an alternative permit process that leads to a modernized process that places Ontario as a modern juris-diction open for business.

More information about this project will be presented at the 40th Annual WEAO Technical Symposium as part of the Professional Wastewater Operators Session on April 11, 2011. For more information about the MOE Modernization of Approvals, please visit http://www.ene.gov.on.ca. For more information about the CCA pro-cess please contact Edgardo Tovilla, P.Eng., of the Ministry of the Environ-ment at [email protected]. For more information about the Harmony Creek WPCP new CCA, please contact Thom Sloley, P.Eng., of The Regional Municipality of Durham at [email protected].

Decommissioned trickling filter, Plant 1, Harmony Creek WPCP

54 Spring 2011INFlueNTS Click HERE to return to Table of contents

Midway between Detroit and Toronto, London is at the heart of Southwest-ern Ontario. As Canada’s 10th largest centre, London – The Forest City – has a population of over 353,000 and serves as a regional hub for surround-ing communities. Rarely noticed amongst the roads, residences and parks is the wide network of sewage collection and treatment plants. This extensive system that conveys and treats water used by Londoners consists of 1,327 kilometres of sani-tary gravity sewer, 47 kilometres of forcemain, 19,875 maintenance holes, 36 pump stations, and six pollution control plants.

The City of London has been deal-ing with odour generation and corro-sion in the transmission lines since the 1980s. Although odours can be a big nuisance for residents, mitigating cor-rosion is important as it ensures longer life of sewage infrastructure. Over the years, City staff has taken a proactive

Odour Control at Sewage Pump Stations in the City of London

BRyAN HAAN, Siemens Water Technologies Canada, Inc

treatment approach, applying a wide variety of liquid- and vapour-phase technologies across the City to best treat each situation with individual customized solutions.

“Moving towards a sustainable,long-term financial position is

vital to managing the City’s sewer infrastructure. Maintenance of aging infrastructure and

construction of new infrastructure ensures the health of the sewer system and the public at large.”

- City of London website: www.london.ca

This article will look specifically at three of London’s pump stations and the subsequent forcemains that are being treated with Siemens Water Technolo-gies’ Bioxide™ process. Being a liquid-phase treatment, the product not only treats nuisance odours, but also arrests the corrosive effects of sewer gas.

Odour and corrosion issues X three Scattered throughout South London, the Talbot Village, Southwinds, and Dingman pump stations all have odour and corrosion issues downstream. Although each pumps sewage to a treatment plant, they are different in size and layout, making each treatment option different as well.

Talbot Village pump stationWhen the Talbot Village subdivision was developed in the early 2000s, a pump station was required. Owned by the development company but operated by City staff, the Talbot pump station uses a 300 mm forcemain to transmit 70 m3 of sewage just over 2 kms, which it then discharges into a chamber that gravity feeds further on. The cham-ber is situated directly beside a main road used by local residents and is also located near a subdivision of custom homes. The Southwinds subdivision pump station also discharges into this same chamber. In 2006, the City dis-covered odour issues downstream and began investigating treatment options.

Initially, ferrous chloride was used for treatment, but given a retention time over 24 hours, high volume of chemical were required. A trial utiliz-ing the Bioxide process was started in February 2007 and, given improved treatment results with lower cost, the solution was implemented as the permanent treatment method. With a retention time greater than 24 hours, diurnal flow characteristics did not impact the generation results, so a constant dosage was able to provide the required treatment. The Bioxide process involves dosing directly to the wet well using peristaltic metering pumps.

Southwinds pump stationThe Southwinds Village sewage system is a remedial system provided in the mid-1990s to resolve public health and

Figure 1 – Daily raw results from the Talbot and Southwinds receiving chamber

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Period Displayed: 3/11/2007 - 3/13/2007 (Oda File: Gravity North St Mar 16.oda -- Serial Number: OL45056262)

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environmental concerns arising from the inadequate performance of the original on-site septic tank and leach-ing bed systems. The village collection system is gravity fed to a pump station which has the above-ground portion minimized for aesthetic reasons.

The pump station transmits an aver-age of 280 m3 per day of sewage almost 4 kms via a 150 mm forcemain and dis-charges into the same chamber as the Talbot pump station. Retention time is approximately six hours, but varies due to the all-residential flow which has a dramatic diurnal variation.

In February 2007, a trial utilizing the Bioxide process was undertaken, but the City decided to utilize the sub-division’s old water pump station as the dosage location, given its easy access to the sewer just prior to the sewage pump station and its larger size. This proved to work well and was utilized as the permanent treatment system after the positive trial.

Given the dramatic diurnal flow seen at the pump station, a two-pump system was incorporated that targeted mid-day and late night/early mor-ning low flow times. With this dosage regime, as well as the Talbot pump sta-tion treatment, hydrogen sulphide (H2S) levels at the receiving chamber were reduced to non-detectable levels. The non-detect conditions not only treated the odours being emitted, but also any concerns for corrosion downstream in the gravity section.

Dingman pump stationOriginally built in the 1960s, the Ding-man pump station services a large por-tion of south London, including White Oaks, Cleardale, Westminster Park, and Pond Mills residential subdivisions, as well as the Wilton Grove, Pond Mills, and Westminster Park industrial developments. Daily average flow rates are just over 18,000 cubic meters (4 MGD), but can climb dramatically during wet weather events, in which case holding lagoons are used. The pump station also receives septage from surrounding areas.

Sewage is conveyed via forcemain initially and discharges into a gravity sewer prior to flowing through a resi-dential area. Forcemain retention times average around four hours, but given the diurnal flow characteristics, can be anywhere from two to five or six hours.

Figure 2 – Daily monitoring graph results from Talbot and Southwinds receiving chamber with Bioxide process after treatment

Figure 3 – Southwinds pump station Figure 4 – Talbot Villiage wet well

Once entering the residential area, the gravity sewer follows a short road with a steep decline that causes fast flow and high turbulence.

Anaerobic conditions develop during the forcemain retention time, causing the generation of odours – specifically H2S. The Dingman pump station has some high loading contributors to the sewage as well, which compounds the issue and has contributed to H2S odour complaints and, in the past, severe corrosion of the sewer and vent stacks in area residential and apartment buildings.

Constant monitoring in 2001 showed that high levels were still being generated during the low flow times of the diurnal cycle. Monitoring also showed an annual cycle, as the temper-ature of the sewage impacted the BOD levels and the rate of H2S generation. City staff noted that, on this system,

dissolved sulphide levels of as little as 1 mg/L could generate over 300 ppm H2S in the air. Caustic addition was initially tried, but treatment results were not satisfactory. Ferrous chloride was then applied, which improved treatment results.

In summer 2007, given the recent success of using the Bioxide process to treat odours at the Talbot and South-wind pump stations, City staff began a Bioxide process trial at the Dingman pump station to see if results could be improved upon. The Bioxide process differs from iron salt treatment in that it bio-chemically treats sulphides rather than chemically precipitating them out. The Bioxide process can both remove existing sulphides and prevent sulphide formation; the latter would be the focus in the Dingman pump station trial.

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Period Displayed: 3/7/2007 - 3/9/2007 (Oda File: Gravity North st Mar 9.oda -- Serial Number: OL45056262)

Average 0PPM Day Transition Min OPPM Max 0PPM (use Screen Data Only)

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H2S TemperatureGravity North st Mar 9: Session 1

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City staff undertook a two-month trial, with results showing improved treatment, especially during the low flow times or higher retention periods. With positive trial results, the City began a semi-permanent application in fall 2007, with a new tank and pumps added in summer 2010. The Bioxide process is applied to the pump station wet well using two Premia® 75 dia-phragm metering pumps, one of which is on a timer to specifically target the

lower flow periods of the day. Iron salt addition was not halted, however, as it aided in treatment during the low flow times and had subsequent treatment benefits at the Greenway Pollution Control Plant.

ConclusionLondon has a proactive plan in monitoring and treating the H2S that is generated in the City’s sewer systems. City staff have incorpo-rated the Bioxide process into its liquid-phase treatment options, but also uses iron salts and a variety of vapour-phase treatment technologies. Given the positive treatment results shown from the application of the Bioxide process at certain pump sta-tions, the City has required develop-ers to install liquid-phase treatment in many new pump station designs. In the last two years, two additional pump stations have been equipped with Bioxide treatment systems for treating expected H2S generation in the forcemains.

About the Author BryanHaan is an Odour Control Solutions Account Manager for Water Technologies a division of Siemens Canada Limited in Markham, Ont., Canada. He can be reached at 416-200-4536 or at [email protected]

Figure 5 – Dingman pump station

Figure 6 – Dingman pump station Bioxide tank

The Bioxide process Over the years, and through numerous trials, Siemens has acquired an under-standing of the mechanisms at work in waste systems and has applied this knowledge to create a product that com-bats the major odour-causing elements in sewer systems. As every system is different, Siemens’ application engineers work directly with the customer to provide the best treatment solution for the specific site requirements.

The Bioxide process effectively removes existing H2S and prevents the formation of this gas and other odour-causing substances commonly found in most wastewater treatment systems. The Bioxide process has been used on numerous municipal force-main and gravity sewer systems. It has also been used for dewatered sludge applications with great success and has been independently verified by multiple third-party companies. The Bioxide process is very safe to store and handle and is a method of H2S /odour control that is not on USEPA’s CERCLA list of hazardous materials.

The Bioxide process has been used in North America for the past 15 years and is currently being applied in over 1,800 sewer systems. In addition to municipal applications, Siemens works with a wide range of industrial companies to treat wastewater produced before subsequent discharge to municipal sewers.

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Sewage Pumping Station Capacity: Consider the Forcemain A CASE STuDy OF THE STEVENSVILLE SEWAGE PuMPING STATION

DOuGLAS PEASE, B.Sc. (Civil Eng.), EIT, R.V. Anderson Associates Limited

IntroductionThe capacity of a sewage pumping sta-tion (PS) is dependant on many factors, including the pumps, control arrange-ment and forcemain. Accordingly, when a station is discharging less than expected, it is necessary to consider all aspects of the pumped system. In most cases, pump units and control equip-ment are readily accessible and can be easily inspected and maintained. How-ever, forcemains tend to be inaccessible, making it difficult to determine their condition and whether they are affect-ing the operation of the system.

Project backgroundOriginally constructed in 1983, the Stevensville Sewage Pumping Station is a submersible style facility located in the community of Stevensville, in the Niagara Region (the Owner). The station is configured with two identical sewage pumps, acting as one duty and one standby. The forcemain is approxi-mately 3400m long, and discharges directly into a wastewater lagoon.

The Stevensville PS forcemain is comprised of several different pipe materials. The forcemain was origi-nally constructed entirely of 250mm high-density polyethylene pipe (HDPE). However, records indicate the force-main experienced a number of breaks shortly after entering service, resulting

in the replacement of a small section of original pipe with polyvinyl chloride (PVC) pressure pipe.

In 2008, the Owner retained R.V. Anderson Associates Limited to provide engineering services for the upgrade of the Stevensville PS. The scope of work for this project included an upgrade of the existing electrical and control equipment to meet the Owner’s current facility standards, the installation of a new standby diesel generator, and a review of the existing station rated capacity with considerations for future flow requirements from the community of Stevensville.

Problem identificationIn order to consider an increase in rated capacity, a review of the existing capac-ity was undertaken. The most recent Ministry of the Environment Certificate of Approval (CofA) lists the station rated capacity of 27.5 L/s at 14.5 m total dynamic head. Theoretical calcula-tions, based on factory pump data and forcemain as-built drawings, supported the CofA rated capacity. However, the station magnetic flowmeter indicated a flow of between 19 L/s and 21 L/s for single-pump operation. Results of the most recent drawdown test supported the flowmeter data. As a result, the station was found to be discharging approximately30%lessthanexpected.

Field investigationTo establish a likely reason for the reduction in flows, it was necessary to consider all aspects of the pumped system, including the pump units and controls, as well as the forcemain. After review, the electrical and con-trol equipment was not considered to be contributing to the reduced system capacity. The pump units were found to be relatively new and, according to records, recently maintained. Field testing indicated that the pumps were operating on their published curve and were not the source of the reduced sta-tion capacity.

Having discounted the pump units and controls, it was necessary to consider the forcemain. The dynamic head losses resulting from friction within the forcemain have a signifi-cant effect on the discharge rate of the system. Furthermore, it can be the source of unexpected head losses, such as blockages or pipe deformation. It is important to consider the effects of a forcemain when considering a station pumping capacity.

Due to both the configuration and operational requirements of the Stevensville PS system, it was not pos-sible to take the forcemain off-line and perform a physical inspection of the pipe. To avoid disruption to system operation, a non-invasive methodology

Figure 1 – A buried pipe with both 0% (round) and 21% deflection

Figure 2 – Pipe cross sections recorded during forcemain break records (Proctor & Redfern, 1986).

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utilizing pressure gauge testing was pro-posed. Accordingly, a series of pressure gauge readings along the forcemain were recorded together with station flows from both the station flowmeter and concurrent drawdown tests.

When the field data was compared to the theoretical calculations, it was deter-mined that the pumps were experienc-ing much higher system head loss than expected. Furthermore, the head loss in the last 2800m of the forcemain was, onaverage,foundtobe54%higherthan anticipated. On a per meter basis, the head loss in this section of pipe was found to be twice as high as in the first 600m of the forcemain. The unexpect-edly high head loss in the final section of forcemain was the cause of the reduction in flow, however, additional investiga-tion was required to determine the reason for the additional head loss.

Transient analysisA transient model was developed to better understand the system. A transient (or surge) condition occurs when there is a rapid change in flow velocity within a pipe, resulting in pressure variations in both time and location throughout the system. The transient condition is of particular importance for the Stevens-ville PS because the pumps are operated by full voltage starters. As such, the pumps start and stop very suddenly and a transient condition may occur after each pump cycle. It was found that the forcemain may be subject to significant

negative pressures throughout its length. Furthermore, these negative pressures were found to exceed the collapse pres-sure rating of the pipe over much of the length of the forcemain.

DeflectionThe transient analysis indicated that significant portions of the forcemain may experience negative pressures on a regular basis. By comparing the pres-sure gauge data to the transient analysis results, it was found that the section with unexpectedly high head losses cor-responds well with the section of pipe experiencing negative pressures exceed-ing its collapse pressure rating. Based on these results, it is believed that this section of pipe may have experienced permanent deflections resulting from cyclic negative pressures.

When a pipe deflects from a perfect circle, its cross sectional area reduces and, as a result, the head loss through the section increases. In the case of Stevensville PS, the cross sectional area of the last 2800m of forcemain would need to be reduced by an average of 15%inordertoaccountfortheaddi-tional head loss. This corresponds to an average deflection of approximately 21%(Figure1).Recordsindicatethatthe Stevensville PS forcemain has a history of pipe deflection. During break repairs in 1986, the excavated pipe was found to have experienced significant deflection,intherangeof49%-60%(Figure 2). Given the recorded history

of pipe deflection, an average deflection of21%intheremainingsectionsofthin walled pipe would appear to be the likely source of the additional head loss within the forcemain.

Next stepsThe Owner is currently in the process of constructing a new forcemain for the Stevensville PS. The new system will incorporate several features to avoid future complications from transient con-ditions, including a series of air/vacuum relief valves located strategically along the forcemain, and the use of thick-walled PVC pressure pipe suitable for handling a sustained vacuum without deflection. Furthermore, the upgrades to the Stevens-ville PS will include the installation of variable frequency drives, which will be used to minimize the possibility of tran-sient conditions resulting from the sudden starting and stopping of the pumps.

SummaryA forcemain is an important component of a pumped system and its condition can greatly affect the capacity of a pumping station. However, performing an inspection on a forcemain can be a difficult process, particularly if the system cannot be taken offline. In the case of the Stevensville PS, a combina-tion of field testing, transient modelling and theoretical calculations were used to identify problems within the existing forcemain that were resulting in reduced station capacity.

[email protected] 519-469-8169

Sustainable & Expandable. Economic$ never looked so GREAT!

WATER COMPOSITE ELEVATED TOWERS WASTEWATER

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To Classify or Not To ClassifyCASE STuDy - HESPELER RAW SEWAGE PuMPING STATION DESIGN; ELECTRICAL CLASSIFICATION

VALERA SAKNENKO, P.Eng., VINCENT NAzARETH, P.Eng., MOHAMMAD KHALID, P.Eng., R.V. Anderson Associates Limited, KAORu yAJIMA, P.Eng., and SuSAN KARLINS, P.Eng., The Regional Municipality of Waterloo

IntroductionIn addressing health and safety issues during design of a wastewater facility, and specifically in design of sewage pumping stations, area electrical classification and ventilation requirements must be carefully considered. Selection of area classification, electrical equipment and material of construction could significantly impact requirements for ventilation rate and, subsequently, capital and operations costs.

The main purpose of this article is to discuss requirements and application of the OntarioElectricalSafetyCode–2009(OESC),NFPA820–StandardforFireProtectioninWastewaterTreatmentandCollectionFacilities,2008 and the Ontario MinistryofEnvironmentDesignGuidelinesforSewageWorks,2008 (MOEGuidelines) in design of a sewage pumping station. The article discusses how the above codes and standards’ requirements were implemented in the design of the new raw sewage pumping station (SPS) at the Hespeler wastewater treatment plant (WWTP).

Project backgroundThe Hespeler WWTP, located in the City of Cambridge, Ontario, was built in 1973 with a rated capacity of 9,320 m3/day. It is owned by the Regional Municipality of Waterloo (Region) and operated by the Ontario Clean Water Agency. The Region retained R.V. Anderson Associates Limited to carry out the preliminary design phase for upgrades to the Hespeler WWTP. During this phase, a need to replace the existing SPS with a new SPS was identified.

To advance the project, the Region applied for and received

funding under the recent Federal/Provincial Infrastructure Stimulus Funds in June 2009. The design was completed in January 2010, tendering was completed in March 2010, and construction began in April 2010. The pumping station was designed as a wet well/dry well pumping station with five pumps for rated capacity of 440 L/s. An aerial photograph of the plant is shown in Figure 1.

Fire triangleThe handling of hazardous gases is always a significant issue in the design of a wastewater facility.

The possible presence of sewage gases (most often hydrogen sulfide and methane), and/or spilled gasoline (in a combined system) provides a risk of fire or explosion.

In order for an explosion to occur, three components must be present simultaneously – source of oxygen, fuel and heat (or source of ignition). This is termed a ‘fire triangle’ and is shown in Figure 2. The objective of safety is achieved by preventing the completion of the triangle. NFPA820 and OESC both address ways to prevent the fire triangle.

Figure 1 – Aerial View of Hespeler WWTP

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Codes and standardsWhile NFPA820 is the most widely used standard in North America for wastewater facilities, CanadianNationalElectricalCode and OESC (Sections 18, 20 & 22) must be taken into consideration when designing wastewater facilities in Canada or Ontario. In addition, the MOEGuide-lines also provides guidelines to help

achieve the highest level of safety for operational staff and property.

The MOEGuidelines recommend that, in wet wells, either continuous ventilation at 12 air changes per hour (ACPH) or intermittent ventilation at least 30 ACPH be provided. For dry wells, six ACPH are recommended for continuous ventilation or at least 30 ACPH for intermittent ventilation. NFPA820 and OESC have

similar approaches to electrical classifications and ventilation requirements, but with subtle differences. Both NFPA and OESC classify hazardous locations as follows:• ClassIlocations – where

flammable gases or vapours are, or may be present in the air in quantities sufficient to produce explosive gas atmospheres;

• ClassIIlocations– are hazardous because of the presence of combustible dusts or electrically conductive combustible dusts;

• ClassIIIlocations– are hazardous because of the presence of easily ignitable fibres or flyings.

In the design of wastewater facilities, including sewage pumping stations, ClassIlocations are of primary concern. With respect to further detailing of classes, NFPA and OESC have slightly different approaches – NEC/NFPA uses “divisions”, while OESC uses “zones”. Please refer to the following Table 1 comparing divisions and zones for Class I locations only.

With respect to atmospheric groups, they are categorized as Group A, B, C, D, E, F and G. Detailed lists of all gases or vapors of each group can be found in OESC, Part I, Appendix B. From the point of view of fire protection, Group D is most relevant for wastewater facilities. It covers atmospheres containing ammonia, benzene, gasoline, methane, propane and other gases or vapours of equivalent hazard.

Figure 2 – Fire Triangle

Ventilation requirements for wet wells By Patrick Coleman, AECOM

The Ontario MinistryofEnviron-mentDesignGuidelinesforSewageWorks,2008 states:

Fresh air needs to be forced into the enclosed area (i.e., wet well). Where continuous ventilation is required at least 12 complete air changes per hour (ACPH) needs to be provided. Where continuous ventilation would cause excessive heat loss, inter-mittent ventilation of at least 30 complete air changes per hour needs to be provided when personnel enter the area. Switches for operation of ventilation equipment should be marked and located conveniently. Explosion proof gas detectors need to be provided. Also refer to Section 7.2.10 (Safety Ventilation).

The origin of this require-ment is the TenStatesStandard of which Ontario is a member (http://10statesstandards.com/waste-waterstandards.html):

42.75 Wet wellsWet well ventilation may be either continuous or intermittent. Venti-lation, if continuous, shall provide

at least 12 complete air changes per hour; if intermittent, at least 30 complete air changes per hour. Air shall be forced into the wet well by mechanical means rather than solely exhausted from the wet well. The air change requirements shall be based on100%freshair.Portableventila-tion equipment shall be provided for use at submersible pump stations and wet wells with no permanently installed ventilation equipment.

The 1951 edition of the RulesandRegulationsGoverningtheSubmis-sionPlanDocumentsandtheDesignofSewageWorks, adopted by the Illinois Sanitary Board, December 19, 1951, included ventilation equipment minimums for pumping stations of a two minute turnover for intermittent operations. The amended rules, dated January 22, 1962, revised the word-ing to “at least 30 complete air changes per hour shall be provided.” The 1938 edition of the State Sanitary Board rules does not include the ventilation require-ments. The 1968TenStates, which is the oldest copy the Ten States Com-

mittee has available, included the 30 ACPH as “should provide.” The 1971TenStates also included the “should provide” wording. The 1978TenStates revised the wording to “shall provide.” The 1990TenStates revised the wording back to “should provide.” The 1996 edition changed it once more to “ shall provide,” which is the same as the current wording.

Illinois has been using the 30 ACPH requirement for at least 60 years. Our sources are not aware of what happened prior to 1951 for the Sanitary Board to determine that 30 ACPH was necessary. Opera-tor safety probably became more of a priority. Other than whether or not the requirement should or shall be provided, the TenStates have historically included the 30 ACPH requirement also.

The author wishes to acknowledge Amy L. Dragovich, P.E., Manager, Northern Municipal Unit, Permit Section. Division of Water Pollution Control, who provided the historical background to the 30 air changes per hour requirement.

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For a wet well, if electrical equip-ment is rated for Class I, Zone 0 or 1 hazardous area (as per OESC), or Class I, Division 1 (as per NFPA 820), no ventilation would be required. How-ever, if electrical equipment is rated for Class I, Zone 2 (as per OESC), or Class I, Division 2 (as per NFPA 820), the wet well would have to be continu-ously ventilated at 12 ACPH.

For a below-grade or partially below-grade wastewater pumping station dry well, the entire space of a dry well could be unclassified, if continuously ventilated at six ACPH. Alternatively, if area electrical classification is selected as Class I, Zone 2, no ventilation would be required.

As can be seen from the above, a sewage pumping station could be designed with continuous ventilation at 12 and six ACPH (for wet well and dry well respectively) to de-classify areas (Option A), or use more stringent area electrical classification and avoid a need for continuous ventilation (Option B).

Several issues should be taken into account if Option A is considered. This option would result in higher operating costs, compared to Option B. In addition, OESC requires that ventilation systems be monitored for breakdown and unclassified electrical equipment be de-energized in case of ventilation failure; to comply with this requirement, standby equipment should be considered.

Option B is more effective when considering net present value cost. Naturally, it would require all electrical equipment to be rated

for a specific area of electrical classification, and some premium will have to be added to the cost of that equipment. These costs will be small compared to life-cycle cost savings that could be achieved, to continuous ventilation at high rate, heating of the air in winter weather, and increased cost for ventilation equipment required for ‘unclassified’ areas.

In the case of the Hespeler SPS, the cost premium for electrical equipment rated for the ‘classified’ dry well was only $11,500 higher compared to similar equipment rated for an ‘unclassified’ dry well, which is less than0.17%ofthetotalcontractvalue.

Table 1 – Comparison of NFPA and OESC Class I, Area Electrical Classification

NEC/NFPA Classification

OESC 2009 Classification Description

Division 1

zone 0 Explosive gas atmospheres are present continuously or are present for long periods

zone 1 Locations in which:

(i) – Explosive gas atmospheres are likely to occur in normal operation

(ii) – locations adjacent to a Class I, zone 0 location, from which explosive gas atmospheres could be communicated

Division 2 zone 2

Locations in which:

– explosive gas atmospheres are not likely to occur in normal operation and, if they do occur, they will exist for a short time only; or

– the location is adjacent to a Class I, zone 1 location, from which explosive gas atmospheres could be communicated, unless such communication is prevented by adequate positive-pressure ventilation from a source of clean air, and effective safeguards against ventilation failure are provided

At the same time, the cost increase for ventilation equipment for de-classifying the dry well would be over $31,000, resulting in overall saving in capital cost of approximately $19,500.

Due to lower ventilation rates, significant savings in power and natural gas consumptions could be achieved – 240,000 kWh/year and 195,500 m3/year respectively, resulting not only in operating cost saving of about $67,000/year, but also in reduction of carbon footprint of the facility. Based on capital and operating costs savings, a net 20-year life-cycle cost saving is estimated at some $900,000 (using a rateofreturnof4%).

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Case Study: Hespeler WWTP new raw sewage pumping stationIn the case of Hespeler raw sewage pumping station (SPS), Option B was followed for area electrical classifications, to avoid the need for continuous ventilation. The wet well was classified as Class I, Division 1, Group D hazardous location, meaning that all electrical components were rated for this specific classification and no ventilation was required.

Figure 3 – Hespeler Sewage Pumping Station-Hazardous Areas

A slab-mounted fan was provided to supply outside air at the rate of 12 ACPH when the wet well needed to be accessed for maintenance purposes.

The dry well, washroom, mechani-cal and janitor rooms, which are all physically separated from the wet well, but interconnected to each other, were classified as Class I, Division 2, Group D hazardous location. To provide some comfort environment for operation staff, continuous ventilation at the rate of

three ACPH was provided. The ventila-tion rate can be increased to six ACPH to provide temperature control or when combustible or toxic gases are detected. In both cases, supply air capacity is 3%-4%morethantheexhaust,tocreate a slightly positive pressure inside the dry well that will help in prevent-ing ‘sewage gases’ entering the dry well from outside.

Gas detectors to sense the excessive concentration of combustible gases,

Table 2 – Hespeler raw sewage pumping station – area electrical classification

LocationOESC 2009 NFPA 820

VentilationClassification Reference Classification Reference

Wet well, inlet chamber Class 1, zone 0 22-404(1)

18-006 (a) Class 1, Div 1 Table 4.2 (16) A

Dry well, access platform,

pump bay access room, washroom/janitor room

Class 1, zone 2 22-704 (3)18-006 Class 1, Div 2 Table 4.2 (17)(b) D

Staircase and landing area Ordinary location 22-704 (5) unclassified Table 4.2 (18) N/A

Control room Ordinary location 22-704 (5) unclassified Table 4.2 (18) N/A

ELECTRICALROOM

PuMP BAyACCESS ROOM

ACCESSPLATFORM

DRy WELL

CLASS 1, DIVISION 1, GROUP D HAZARDOUS AREA CLASS 1, DIVISION 2, GROUP D HAZARDOUS AREA UNCLASSIFIED AREA

WET WELL

INLETCHAMBER

WET WELLDISTRIBuTIONCHANNEL

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NFPA 820 By Patrick Coleman, AECOM

Ventilation rates for enclosed spaces at wastewater treatment plants are normally set based on NationalFireProtectionAssociation(NFPA)820:StandardforFireProtectioninWastewaterandCollectionFacilities.

The purpose of this standard is two-fold:• (Section1.2.1)Toprovideadegreeoffireandexplosionprotectionforlife,

property, continuity of mission. and protection of the environment• (Section1.2.2)Toreduceoreliminatetheeffectsoffireorexplosionby

maintaining structural integrity, controlling flame spread and smoke genera-tion, preventing release of toxic products of combustion, and maintaining serviceability and operation of the facility

NFPA820 is not listed with the other NFPA standards listed in Table 1.3.1.2.of the BuildingCode, nor is there an explicit reference to NFPA820 anywhere in the BuildingCode. However, the OntarioBuildingCode,Section6.2.2.5(1),HazardousGases,DustorLiquidsstates:

Systems serving spaces that contain hazardous gases, dusts or liquids shall be designed, constructed and installed in conformance with the provisions of the FireCode made under the FireProtectionandPreventionAct,1997, or in the absence of requirements pertinent to such systems in the FireCode, to good engineering practice such as described in the publications of the National Fire Protection Association and in the NationalFireCodeofCanada. (see Appendix A).

Therefore, complying with NFPA820 is considered to be ‘good practice’ in Ontario.

hydrogen sulfide or low oxygen are provided in the dry well. Upon activation, the sensors send a signal to an air handling unit system to run the supply and exhaust fans at double speed. The alarms are also sent to PLC to let the SCADA know that there is a potentially unsafe situation.

Ventilation for the stairwell is designed to maintain a positive pressure at 25 Pa, using a small electric make-up air unit to make it unclassified and suitable for building exit. An electrical room is physically separated from the dry well and is equipped with a split air condition unit, electric unit heater, an exhaust fan and an intake louver, capable of providing emergency ventilation at the rate of six ACPH.

In Figure 3, a section of the Hes-peler SPS is shown indicating various areas of electrical classification in different colours. In Table 2, ventila-tion requirements for various areas of electrical classification, with references to both OESC and NFPA820, are summarized.

The following codes are used in this table:A: No ventilation or ventilated at less

than 12 ACPH.D: No ventilation or ventilated at less

than six ACPH.

SummarySelection of area classification, electrical equipment and material of construction could significantly impact requirements for ventilation rate and, subsequently, capital cost and operating costs.

In designing a sewage pump-ing station, both options – high rate continuous ventilation for unclassified electrical areas (Class I, Zone 2, as per OESC) and low rate continuous ventilation for more stringent electrical classified areas (Class I, Zone 0 or 1, as per OESC) – should be considered.

Use of electrical equipment rated for Class I, Zone 0, 1 or 2 would result in a more robust installation, lower ventila-tion (and heating) requirements, lower capital and operating cost, and reduc-tion of carbon footprint of the facility.

In the case of Hespeler SPS, a net 20-year life-cycle cost saving was esti-mated at $900,000.

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Kitchener WWTP Effluent Pump Station – Increased Efficiencies by Facility Siting and Design Modelling

JILLIAN SCHMITTER, EIT, WARREN SAINT, P. Eng., JOSé BICuDO, Ph.D. , P.E., and JO-ANNE ING, M.A.Sc., P. Eng.

Introduction and Project BackgroundThe Kitchener wastewater treatment plant (WWTP), which is owned by the Region of Waterloo (Region), is a conventional secondary treatment facil-ity with anaerobic sludge digestion and a total rated capacity of 122,745 cubic metres per day (m3/d). The WWTP is comprised of two separate secondary treatment plants served by a common headworks facility and primary clarifier units. The Kitchener WWTP has a cur-rent average day flow of approximately 73,000 m3/d. The projected 2026 average day design flow is 100,000 m3/d and the projected 2041 average day flow is 122,800 m3/d. The WWTP discharges to the Grand River and all of the treatment units are located on the Grand River floodplain.

The Region is following a phased approach to upgrade the WWTP to primarily improve effluent qual-ity and improve water quality in the Grand River. The current phase of the upgrades includes the installation of

a UV disinfection facility (UVDF) to replace the WWTP’s chlorine contact chambers. This is part of the Region’s Pollution Prevention (P2) plan to elimi-nate or reduce total residual chlorine in the effluent discharged to the Grand River. The installation of the UVDF will affect the plant’s hydraulic grade line, resulting in headlosses which would flood the weirs of the second-ary clarifiers and overtop the existing tankage during high plant flows and/or high river water levels. Therefore, in order to implement the UV disinfec-tion, an effluent pumping station (EPS) would be required at the WWTP.

During the pre-design and design phases of the EPS, there were several challenges related to the functionality and the cost efficiency of operation and construction. These included the posi-tion of the EPS in the WWTP process stream, the physical location of the EPS on the WWTP site, the WWTP and EPS hydraulics, and how to handle the wide range of effluent flows expected by the 2041 design horizon. Computa-

tional fluid dynamics (CFD) modelling was performed to refine the anticipated performance of the EPS during the design phase. This article will discuss the final EPS design, how the chal-lenges were addressed in the design, and how CFD modelling was used to improve the EPS’ hydraulics.

Design challengesThe water elevation of the Grand River has a significant impact on the hydraulic profile of the WWTP as it discharges to the Grand River. The river is typically at or below an eleva-tion of 277.4 metres geodetic (m). The upstream hydraulic control points are the secondary clarifier weirs, which result in a hydraulic head of 4.27 m available for frictional and hydraulic element losses through the existing conduits and the proposed UVDF. This is sufficient to allow for gravity flow throughtheplantfor90%ofthetimeduring typical river water levels for plant effluent flows up to 150,000 m3/d. However, an elevated hydraulic grade-

Figure 2 – Alternative 2: Pre-uV Pumping StationFigure 1 – Alternative 1: Post-uV Pumping Station

286m

285m

284m

283m

282m

281m

280m

279m

278m

277m

276m

Plant 2 SecondaryClarifiers UV System Grand River

Post-UVPumping Station

ExistingOutfall Pipe

Pipe betweenClarifiers and UV

(Estimate)

281.7m

277.4m

282.37m

283.63m

280.6m

285.57m

278.7m

400 MLD

400 MLD

Typical Flow

281.4m

280.8m

Plant 2(150 MLD)

NCL

Baffle

Typical River Elevation

Design Flood Elevation

Regional Flood Elevation

Bank A Bank B

Local Grade

Gate

288m

287m

286m

285m

284m

283m

282m

281m

280m

279m

278m

277m

276m

Plant 2 SecondaryClarifiers UV System Grand River

Pre-UVPumping Station

Existing Outfall PipePipe between

Clarifiers and UV(Estimate)

277.4m

282.37m

283.63m

280.6m

285.57m

278.7m

400 MLD

400 MLD

Typical Flow

Typical River Elevation

Design Flood Elevation

Regional Flood Elevation

Local Grade

NCL

Baffle Bank A Bank B Gate

281.7m281.4m

280.8m

Plant 2(150 MLD)

287.4m

66 Spring 2011INFlueNTS Click HERE to return to Table of contents

line between the river and the second-ary clarifier weir caused by high plant flows and/or high river water levels may result in insufficient available head for flow by gravity and necessitate an EPS for the Kitchener WWTP.

Two alternative locations for the EPS were examined. Alternative 1 situated the EPS downstream of the UVDF, while Alternative 2 sited the EPS upstream of the UVDF. In Alter-native 1, pumping is only required when the hydraulic grade line exceeds the pump start setpoint. Alternative 2 requires all flow received from the secondary clarifiers to be pumped.

The preferred design option is Alternative 1, which placed the EPS downstream of the UVDF. Under this scenario, the EPS will operate only about 10 percent of the time (during high plant flows and/or during high river water levels). Therefore, Alternative 1 is more economical in terms of operating costs. It also reduces the plant’s mechan-ical dependence on an EPS.

The WWTP is located on the floodplain of the Grand River, with a Regional flood elevation of 283.63 m, some 2.4 m above the typical grade elevation within the WWTP. Both the UVDF and EPS incorporate features such as entrances above the flood elevation, structure design that resists the buoyant forces during flood events, and the utilization of exterior building materials that will not be significantly affected by immersion in water, in order to allow continued plant opera-tions during flood events.

The EPS is designed with five sub-mersible pumps in two parallel wet wells which can be isolated independently, providing system redundancy and allow-ing for wet well and pump maintenance. Each pump is independently piped to an elevated discharge channel, eliminating the need to supply and service 900 milli-metre (mm) diameter isolation and check valves. As the EPS is required to handle flows between 40,000 m3/d and a peak instantaneous flow of 400,000 m3/d, it was essential to select pumps that could handle the range of normal and peak design flows with reasonably efficient duty points. Two pumps sized for 70,000 m3/d and three sized for 135,000 m3/d were selected, giving a firm capacity of 410,000 m3/day with pump efficiencies of over 80 percent for the entire operating range. There is space for

Figure 3 – Kitchener WWTP Pump Station Plan

a fourth pump (sized for 135,000 m3/d) to be installed in the future. All pumps are equipped with variable frequency drives to allow the selected pump sizes to ramp up the pumping capacity as the flow increases.

Under normal conditions, effluent from the UVDF will flow by grav-ity through the two parallel central channels of the EPS, out through the flap gates, into the effluent outfall chamber and finally into the plant’s

effluent outfall pipe. During high river water level and/or high effluent flows conditions, a rise in the water level above a specific threshold point in the EPS’ effluent outfall chamber will initiate the pumps, and the flap gates on the outlets of the EPS will close due to the resulting hydraulic gradi-ent. Peak pumping conditions (when the river water elevation is at the Regional flood elevation of 282.37 m and the plant is operating at 400,000

EXISTING OUTFALLTO RIVER

EFFLUENTOUTFALL

CHAMBER

FROM EXISTINGCHLORINE CONTACT

CHAMBER

SOUTH PUMP WET WELL

SOUTH PUMP WELL CHANNEL

NORTH PUMP WELL CHANNEL

NORTH PUMP WET WELL

GRAVITY FLOW PATH

PUMPED FLOW PATH

LEGEND

FUTUREOUTFALL

FLAP GATES(TYP)

ISOLATIONGATES(TYP)

FRO

M U

VFR

OM

UV

67 Spring 2011INFlueNTSClick HERE to return to Table of contents

Figure 5 – CFD model of vertical floor cross plates beneath pump (typ).

m3/d peak instantaneous flow condi-tions) can result in a hydraulic grade line of 286.9 m at the effluent outfall chamber, which results from large headlosses through the existing out-fall. A planned future twinning of the outfall would allow for more frequent operation of the WWTP under gravity flow conditions.

Computational fluid dynamic (CFD) modelling and analysisDesigning the EPS to the approach conditions required by the Hydraulic Institute (HI) standards would have necessitated very long forbays for the larger pumps, which have a diameter of approximately 1.7 m. The HI standards require a minimum forebay length of five (5) pump diameters from the centerline of the pump, which in earlier iterations of the design, resulted in a large foot-print for the EPS and potentially higher construction cost. Designing the EPS with a reasonable economic footprint required an innovative design whereby the influent flow would, when the pumps were operational, exit the central channel of the EPS and enter the pumps’ wet wells through ports located behind pumps. This arrangement has been used before in circular (annular) pump sta-tion design but has not knowingly been applied to a linear pump station design. To confirm the design, CH2M HILL completed CFD modelling to investigate the general approach flow patterns of the proposed wet well layout.

The investigation looked at swirl angles and average velocity distribu-tion in the wet wells and compared these to HI standards. General flow distribution in the wet well was also reviewed to identify areas of poor approach flow conditions that could lead to the development of free surface and submerged vortices. The design of the EPS was undertaken utilizing three-dimensional computer-aided drafting (CAD) software (Microsta-tion) which assisted in the set-up of the CFD modelling and allowed the mod-elling to be completed faster and more economically than with traditional two-dimensional CAD platforms.

In the CFD analyses, three scenarios of increasing flows through the EPS up to the firm capacity of 410,000 m3/d were modelled. The scenarios were assessed using criteria specified by the HI, which included wet well flow pat-

Figure 4 – CFD modeling results with vertical floor cross plates beneath pump inlets.

water.Superficial Velocity [m s^-1]

0.00

0.20

0.40

0.60

0.80

1.00

1.20

1.40

1.60

1.80

2.00

68 Spring 2011INFlueNTS Click HERE to return to Table of contents

tern analysis, velocity distribution at the pump intakes, and swirl angle.

The three scenarios modelled resulted in identifying areas of high recirculation, which required alterna-tives to be examined to reduce swirl and potential vortexing. Two alterna-tives were evaluated. The first alterna-tive evaluated vertical plates located at the wet well wall opposite each pump and aligned with the pump centreline. The second alternative evaluated vertical cross floor plates set directly beneath the pump intake.

The CFD modelling results indicated that the floor cross plates perform better at reducing areas of recircula-tion than the vertical rear wall plates. As a result, floor cross plates beneath the pump intakes were incorporated into the final EPS design. The results of the CFD analysis were discussed with ABS Pumps Corp., the prese-lected pump manufacturer, to confirm that the intake distribution and areas of recirculation with the addition of the cross plates were acceptable. The pump manufacturer confirmed that these conditions are acceptable and recommended that the cross plates be perforated to further reduce recircula-tion and potential vortexing.

The CFD modelling confirmed to the designers and to the owner that the modified design of the EPS should allow the pumps to operate within an environment which is consistent with HI standards for flow velocity distribu-tion and swirl.

SummaryA number of design challenges were encountered in the design of the Kitch-ener WWTP EPS. The pump station design and operational costs were reduced on this project as a result of several design decisions. These include locating the EPS downstream of the UVDF (where pumping is only required during high plant flows and/or high river levels), employing a unique linear design which allows for a smaller EPS footprint, and using CFD analysis to confirm velocity distributions within the wet well and identify an acceptable alternative to mitigate swirl. The CFD analyses provides the designer, pump supplier and the owner with confidence that the modified design selected, should result in stable pump performance and reduce unscheduled maintenance.

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Remote Monitoring and Control of Wastewater Pumping Stations in Chatham-Kent

ROB BERNARDI, P. Eng., Facilities & Systems Manager, Chatham-Kent Public utilities Commission

The Municipality of Chatham-Kent (www.chatham-kent.ca) is a single-tier municipality located in South-western Ontario. The Municipality of Chatham-Kent covers an area of approximately 2,500 square kilometres with a total population of approximately 110,000. The Chatham-Kent Public Utilities Commission (PUC) owns, operates and maintains six surface water treatment systems, two well supply systems, and 10 wastewater treatment systems, all within the borders of the Municipality of Chatham-Kent. As part of the waste-water collection systems, Chatham-Kent PUC is also responsible for 57 wastewa-ter pumping stations and 535 kilometres

of sanitary sewers, all servicing approxi-mately 69,600 people.

The community of Chatham lies within Chatham-Kent and utilizes the Chatham Water Pollution Control Plant (WPCP) for its wastewater treatment. Figure 1 is a photo of the Chatham WPCP. The Chatham wastewater col-lection system is comprised of sewers and 22 wastewater pumping stations.

BackgroundIn 2006, discussions started to imple-ment a wireless monitoring and control system for the existing pumping sta-tions. The system would consist of flow monitoring, motor energy monitoring

and wet well level monitoring devices interfaced to a programmable logic con-troller (PLC) installed at each remote pump station site. The base for the monitoring and control system would be controlled or housed at the Chatham WPCP. In 2007, a request for propos-als (RFP) was issued to five firms for the implementation of a wireless remote monitoring system for the existing 22 pumping stations. The Chatham-Kent PUC awarded the project to Oxford & Ewing Engineering Inc.

The fundamental objective for the Chatham-Kent PUC - Area Manager (Don Moore) was to gain cost savings in the operations and maintenance

Figure 1 – Chatham WPCP

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of the pumping stations. The cost sav-ings would result from:1. Reduced call-out costs (cost reduc-

tion for employer and improved standard of life for employees).

2. Elimination of leased telephone lines and waiting time associated with repairs.

3. Avoidance of major pump repair costs (allows for predictive mainte-nance rather than reactive mainte-nance).

4. Elimination of manual station checks, thereby reducing staffing costs for confined space entries.

5. Reduced pump inefficiencies.

Taking into account the above items, it was projected that the annual operational savings would amount to approximately $86,000 for the Chatham wastewater pumping system.

ImplementationThe first stage of the project consisted of determining the appropriate wire-less communication devices to use. It was beneficial to invest time at the start of the project to evaluate radio antenna systems compared to cellular systems. The cost analysis of maintain-ing radios compared to cellular-based data plans was also incorporated in the evaluation. The outcome of the analysis was to utilize a cellular-based system. An antenna-based system has larger initial costs and obstruction problems with trees and buildings. Another downside of antennae is the aesthetics of the pumping stations, particularly in residential areas. Utilizing cellular eliminates these problems with the use of very tiny antennae. See Figure 2 illustrating the small size of cellular antennae used for the project that are hardly noticeable. Some antennae were mounted on the building walls and others were mounted to control panel tops where there were no buildings.

The requirement of using large and tall antenna masts was avoided by the use of cellular devices. This reduces the requirement of climbing a tower for maintenance.

Since the initial start of the project in 2007, cellular-based monthly data usage fees have dropped considerably.

The second stage of the project involved the development of the SCADA (supervisory control and data

acquisition) system. There were varia-tions in the designs for some stations due to the uniqueness of each pump-ing station. Some stations had wet wells and dry wells, some had just wet wells, others had buildings as part of the station and others had only a con-trol panel mounted above the station wells. One aspect of each pumping station was to monitor the flow. Flow meters would be installed wherever possible or flow calculations are com-puted by the size of the wet wells and the levels inside them. The program-ming was also completed at this stage. The SCADA system would be built around a secure web-based site. This allows for operational staff monitor-ing remotely from any computer with internet access.

The final stage of the project involved the installation of the system. This involved electrical field work by Chatham-Kent PUC staff as well as by Oxford & Ewing’s team. A typical control panel installation is shown in Figure 3. The photograph shows a con-trol panel and measuring device instal-lation in a typical pumping station building. Minimal additional space is required to install the required equip-ment. The panel houses the PLC where it collects, manages and transmits vital station data via the cellular link to the base station including:1. Alarms and warnings.2. Motor: amperage, voltage, starts,

run times.3. Flow metering: current flow volume,

totalized flow volume.4. Wet well levels.

Flow meter installations contained clamp-on type flow meters. This style of flow meter would reduce the initial costs and also made for an easier installation at the pumping stations.

The final product allows for remote monitoring of the pumping stations by operational staff via laptop computers, base station computers or stationary computers from basically anywhere. Typical SCADA screen views are illus-trated in Figures 4 to 7.

Issues or considerations in implementing a systemOne of the implementation issues to consider is the additional time required for operational staff to

Figure 3 – Photograph of control panel in pump station

install elements of the system at the pump stations. An operating authority needs to understand the amount of time commitment required for such a project. Another consideration is the amount of time required due to confined space requirements at particular pump stations. Appropriate planning is required to meet the current regulations.

Other factors that prolonged the completion of the Chatham system were the additional upgrades added during the implementation. The vast capabilities of SCADA systems these days allow many functions and monitoring scenarios. The original intent for the Chatham system was to only monitor stations, but the PLCs

Figure 2 – Photograph of cellular antenna

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Figure 7 – Pump Station Reporting Data

Figure 5 – Pump Station Data Screen

Figure 6 – Pump Station Historical Trending Data

Figure 4 – Pump station locations in Chatham

allow other control capabilities, and some of these were added to strategic pump stations within the system.

Benefits of this systemPrevious to the monitoring system installation, operations staff performed routine manual pump station checks twice per week, with two employees. Now, staff (two employees) perform on-site manual checks only once per month. As well, the reduction in rain event call-outs annually is approximately 20 and, due to confined space issues, reduces the necessity of involving two or three staff. Another cost saving item proving to be beneficial is through the monitoring of line voltage, amperage, and flow, opera-tions staff can program a shut down

of equipment prior to major damage when one of these parameters exceeds a predetermined high or low set point. Examples include single phasing, pump cavitations or overloading.

Other benefits that were gained by implementing such a system included real-time monitoring of the wastewater pumping stations. This enabled opera-tors to view the historical and real-time data allowing them to evaluate, trouble-shoot and understand situations at the pumping stations prior to going on site. Future enhancements could also include integrating cameras in the stations and accessing data and display screens from smartphones.

One of the outcomes of the project was that operational staff of other

areas of the Chatham-Kent PUC were interested in the deployment of this type of SCADA system. Another community within Chatham-Kent (Wallaceburg) is embarking on a remote monitoring system for 10 of its sanitary pumping stations. Work began on the project in 2010 and will be completed in 2011. Oxford & Ewing is also responsible for the implementation of this project. The system being installed for the addi-tional pump stations in Wallaceburg will have additional add-ons such as the capability of changing set points online and switching from a normal or event status with the push of a button for the pump station when rain events will be occurring.

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Odour Control Design For Lift Stations/Pump Stations

MARTIN J. CRAWFORD, President, Bay Products, Inc.

Lift stations/pump stations are the most common process in the waste-water treatment train. Almost every collection system has some type of lift station, pump station and transfer sta-tion. The problem is that most of these are located close to residential areas or where people are sensitive to odours.

Odour is defined as “any property detected by the olfactory system.” The amount of odour generated at these locations depends on many factors such as tempera-ture, residence time in the collection system and the amount agitation of the wastewater flow. The greater these factors increase, the more odours that are generated.

PungenT malodourous subsTancesSubstance Formula Characteristic odour Odour Threshold (ppm)

Allyl mercaptan CH2iCHiCH2iSH Strong garlic, coffee 0.00005

Ammonia NH3 Sharp, pungent 0.037

Benzyl mercaptan C6H5iCH2iSH unpleasant, strong 0.00019

Butylamine C2H5iCH2iCH2iNH Sour, ammonia-like -

Crotyl mercaptan CH3iCH:CHiCH2iSH Skunk-like 0.000029

Dibutylamine (C4H9)2NH Fishy 0.016

Diisopropylamine (C3H7)2NH Fishy 0.0035

Dipheny sulfide (C6H5)2S unpleasant 0.000075

Ethylamine C2H5iNH2 Ammoniacal 0.83

Propyl mercaptan CH3iCH2iCH2iSH unpleasant 0.000048

Pyride C6H5N Disagreeable, irritating 0.0037

Tert-Butyl mercaptan (CH3)3CiSH Skunk, unpleasant 0.00008

Trietylamine (C2H5)3N Ammoniacal, fishy 0.08

PuTrid malodourous subsTancesSubstance Formula Characteristic odour Odour Threshold (ppm)

Amy mercaptan CH3i(CH2)3iCH2iSH unpleasant putrid 0.0003

Cadaverine H2Ni(CH2)5iNH2 Putrid, decaying flesh -

Dimethylamine (CH3)2NH Putrid, fishy 0.047

Dimethyl sulfide (CH5)2S Decayed vegetables 0.001

Ethyl mercaptan C2H5iSH Decayed cabbage 0.00019

Hydrogen sulfide H2S Rotten eggs 0.00047

Indole C2H6NH Fecal, nauseating -

Methylamine CH3NH2 Putrid, fishy 0.021

Methyl mercaptan CH3SH Decayed cabbage 0.0011

Putrescine NH2(CH2)4NH2 Putried, nauseatating -

Skatole C9H9N Fecal, nauseating 0.0012

Thiocresol CH3iC6H4iSH Skunk, rancid 0.0001

Thiophenol C6H5SH Putrid, garlic-like 0.000062

NOTE: Typically, only a few of these compounds may be present in odours from lift stations. The primary compound is hydrogen sulfide.

Most odours are associated with the reduction of sulfate present in the wastewater. The sulfate is broken down by bacteria in the collection system to form low molecular weight sulfur-containing compounds – most notably hydrogen sulfide, which has a very distinctive rotten egg smell. Also, other organic sulfur compounds may be present such as mercaptans, dimethyl sulfide and many others. Below is a table of common odours associated with wastewater collection, along with their characteristics and odour detection threshold.

When considering installation of an odour control system for a lift station/pump station, there are two main issues that need to be considered – odour containment design and tech-nology for effective odour control.

Odour containment deals with calculating the correct airflow required to provide negative air pressure on the lift station to prevent fugitive odours from being detected by people in close proximity. Pulling air from the lift sta-tion to keep a negative pressure in the wet well, under the lift station cover and possibly in the headspace in the incoming collection lines, the gener-ated odours will be collected by the odour control system instead of escap-ing through leaks in covers, manholes and vent pipes. There are two options for developing the proper air flow to provide the proper negative pressure.

Coveredareamethod – This method requires an air flow that is proportional to the opening of the hatches where potential fugitive odours could escape. This method is effective at preventing odours from escaping from leaks in lift station covers. The standard rate is 0.7 to 1.0 cubic feet per minute per square foot of opening. The range is dependent on the degree the hatches are sealed.

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Example: If a lift station has a hatch size of 9 feet x 9 feet – the hatch opening size would be 81 square feet. At a rate of 1.0 cubic feet per minute per square foot, the flow rate would be 81 cubic feet per minute.

Air exchange rate method – This method requires a ventilation rate that is equal to a specified air exchange rate per hour. The indus-try standard is 6-12 air exchanges per hour. Certain local or national codes such as NFPA820 may require additional or different exchange rates. Please consult them before using the air exchange rate method. This method is typically used when deal-ing with a lift station building that requires odour control or where you are wanting to draw air from the wet well at a rate that will keep it fresh or prevent corrosion in the wet well.

Example: If a lift station building has a size of 20 feet x 20 feet x 12 feet high, the total volume in the lift station building would be 4,800 cubic feet. If we use an air exchange rate of 12 air changes per hour, the air required would be (4,800 cubic feet x 12 air changes per hour)/60 minutes per hour = 960 cubic feet per minute.

Odour control technologiesOnce the required airflow is calculated, we need to look at technologies that will treat these odorous compounds now contained in the air stream.

This article does not address tech-nologies such as in-situ inhibitors, oxidation technologies or counter-actants. These technologies may be applicable, but their design and operation are not presented here.

The three main air treatment tech-nologies that are commonly applied are carbon adsorption, chemical scrubbing and biofiltration.

Before considering a specific technology, it is important to deter-mine or estimate the types of odours present and expected level of odours. This can be done by either taking an air sample of the existing air to be treated or using similar locations/installations to approximate the expected design parameters. Also, it is important to consider the goals or expected treatment levels of the odour control system. This may be in the form of odour level at prop-

erty lines, discharge levels, regulatory requirements or established municipal-ity guidelines.

Carbon adsorptionCarbon adsorption is based on flow of the odorous air stream through a bed of media (usually carbon) and through either adsorption or chemical reaction, removing the odourous compounds so that clean air exits from the systems. Many different types of media can be used that can be carbon-based or other material to provide specific odour treatment. The numbers of types of media are extensive and determining the proper media needs to be examined during the design phase to pick the most effective in regards to perfor-mance and costs.

Vessels that contain the media also have a high degree of variability. The most common are deep bed systems, radial flow, and horizontal bed units.

No matter which style of vessel is chosen, there are two basic design parameters that are required to ensure an efficient and properly operating sys-tems – air flow velocity and contact time.

Media-based systems typically oper-ate with a maximum face velocity of 60

feet per minute and a minimum contact time of three seconds. Good, conserva-tively designed systems that meet these requirements will provide good removal efficiency, good media utilization and low pressure drop.

Media-based systems are well designed for a wide range of odours and airflows. Their limitations come on the level of odours present. Airstreams that contain a high amount of odorous compounds typically are not suited for media based systems due to their high media consumption rate.

Carbon systems are the most common air treatment technology because of its’ high efficiency, relative low cost and simple operation.

Chemical scrubbingChemical scrubbing is widely used for a variety of air treatment. The process involves the flow of odorous air counter-current to a stream of aqueous scrub-bing solution. The odorous compounds are transferred from the air phase into the liquid phase. The clean air passes out the system and the odorous compounds are contained in the liquid waste stream.

The most common chemical scrub-bing involves countercurrent flow of the

Lift Station Building

Chemical Scrubber Biofilter Carbon System

Covered Area Lift Station Design

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air stream to the flow of the aqueous scrubbing solution. Mass transfer pack-ing is included to increase the air to water contact and increase efficiency of the scrubbing solution. Chemicals are typically added to the scrubber solution to increase the rate and capacity of the odorous compounds removal.

Typically, for hydrogen sulfide removal, sodium hydroxide and/or sodium hypochlorite are added. For ammonia, an acid compound such as sulfuric acid or hydrochloric acid is used.

Design of scrubber systems involves many aspects such as air flow, recircu-lation rates, scrubber chemical(s) used and treatment efficiency. Chemical scrubbers typically operate at a velocity of 2.0-2.5 meters per second (400-500 feet per minute), thus are applicable applications with high airflow rates. Most lift stations do not require high air flow rates and, thus, chemical scrub-bers are not commonly used. Anyone interested in utilizing a chemical scrub-

ChangeinhydrogensulfideexposurelimitsSince the 1970s, the exposure limit for hydrogen sulfide (H2S) was 10 ppm (8-hour TWA – time weighted average) and 15 ppm (STEL – short-term exposure limit). In 2010, the ACGIH revised the exposure limits for H 2 S to 1 ppm (TWA) and 5 ppm (STEL). The basis and rationale for the changes can be found in the 2010 ACGIH Documentation for H2S.

The reason this is important is that ACGIH threshhold values are the basis for most occupational health and safety regulations in Canada. In Ontario, Reg833 was recently amended. It took H2S off the table in the regulation and added the

The ACGIH has documented the following information relating to the effects of H2S:

1000-2000 ppm Loss of consciousness and possible death

100-1000 ppm Serious respiratory, central nervous, and cardiovascular system effects

150-200 ppm Olfactory fatigue

100 ppm Immediately Dangerous to Life and Health (IDLH) concentration

5-30 ppm Moderate irritation of the eyes

5-10 ppm Relatively minor metabolic changes in exercising individuals during short-term exposures

< 5 ppm Metabolic changes observed in exercising individuals, but not clinically significant

5 ppm Increase in anxiety symptoms (single exposure)

5 ppm Start of the dose-response curve (short term exposure)

following clause: “2. If the agent is not listed in the Ontario table, but is listed in the ACGIH table, exposure shall not exceed the TWA, STEL, or set out in the ACGIH table.”

The ACGIH table referred to in Reg833 is the 2009 table which has the TLV for H2S at 10 ppm.

‘ACGIH table’ means the table entitled ‘Adopted Values’ shown at pages 10-61 of the publication entitled 2009ThresholdLimitValuesandBiologicalExposureIndices published by ACGIH and identified by International Standard Book Number 978-1-882417-95-7; (‘tableau de l’ACGIH’)

It is not clear yet what Ontario’s response to this change will be. However, one province’s was as fol-lows (http://www.gs.gov.nl.ca/ohs/safety_info/Hydrogensulfide.pdf):

“In the interim, industry is encour-aged to consider using the 2010 ACGIH H2S guidelines when evaluat-ing specific workplace situations and conditions and making risk manage-ment decisions.”

If you are an occupational health and safety professional and would like to provide an article on this change for our summer 2011 issue of INFLUENTS, please contact me at [email protected].

Technology versus odourous comPounds TreaTed

Hydrogen sulfide Organic odours Ammonia

Carbon adsorption X X

Wet scrubber X X (limited) X

Biofiltration X X (limited for bioscrubbers) X

rule oF Thumb For hydrogen sulFide TreaTmenT

low concentration (< 5 ppm)

medium concentration (5-50 ppm)

high concentration (> 50 ppm)

Low flow(< 500 cfm) adsorber adsorber

biofilter biofilter

Medium flow(500 to 5,000 cfm) adsorber biofilter/bioscrubber

chemical scrubberbiofilter/bioscrubberchemical scrubber

High flow(> 5,000 cfm)

adsorberbiofilter/bioscrubberchemical scrubber

biofilter/bioscrubberchemical scrubber

biofilter/bioscrubberchemical scrubber

Technology comParison

Footprint Complexity Capital cost Operating cost

Carbon adsorption Medium Simple Medium Medium to large

Wet scrubber Medium to small Complex Medium to large Small to medium

Biofiltration Large Medium Large Small

By Patrick Coleman, AECOM

76 Spring 2011INFlueNTS Click HERE to return to Table of contents

ber system should contact a company experienced in design of these systems for assistance.

Chemical scrubbers are highly effec-tive at removing hydrogen sulfide or ammonia. Their ability to remove other organic sulfur compounds is marginal, depending on the compound to be treated and the system configuration.

The operation of a chemical scrubber is typically the most complicated of the odour control technologies and requires a higher degree of maintenance.

BiofiltrationBiofiltration is based on flow of the odorous air stream through a bed of media. The media is designed to sup-port bacteria growth. Bacteria grow on the media and use the media and odor-ous compounds as their food source. Many different types of media can be used. Types of media include natural (wood chips, bark, roots, lava rock) or synthetic (foams, engineered coated media, plastic mesh). The numbers of media types are extensive and vary from one vendor to the next. Some media have nutrients and elements incorporated in the media that support optimal bacteria growth, while others require nutrient augmentation.

Vessels that contain the media also have a high degree of variability. The most common are fiberglass round or square vessels, concrete basins or in-ground built-in place.

No matter which style of system that is chosen, there are two basic design parameters that are required to ensure an efficient and properly operating systems – air flow velocity and contact time.

Biological filters are media based systems that typically operate with a face velocity of 0.6-18 meters per minute (2-60 feet per minute) and a contact time of 8-60 seconds. The range is dependent on the type of system, media used and treatment requirements. Bioscrubbers – a type of biological filter – can operate at the upper limits of the velocity range (up to 60 feet per minute) and lower contact times (around 8-12 seconds). These systems are very good for hydrogen sulfide, but are marginal for organic sulfur compounds.

Biological filters can be designed for a wide range of odours and airflows. Their footprint can be limiting (larger than the other technologies) and their ability to treat variations in concentra-

tions, flow rates and on-off operation is limited.

Biological filters are becoming increasingly applied for odour control. Their operation is relatively simple, but requires water systems and controls that must be maintained to ensure proper bacteria growth and system performance.

SummaryEach system has its pros and cons regarding utilization for lift station/

pump station odour control. All aspects must be taken into account when choos-ing a technology, such as capital costs, operating costs, footprint, performance and level of maintenance required. A summary of these factors by technology are presented on the previous page.

As with all engineering designs, it is important to contact professionals that have experience in design of odour control systems and can provide addi-tional design information that might be applicable.

As part of the city of hamilton, 600 MlD high lift Water pumping station project, insyght completed an energy analysis study for this station. our in-house computer model analyzed various pump discharge heads and curves, pump sizes, pump combinations, VFD configurations, pump manufacturer’s curves, and energy costs based on time of day and variable energy rates. This vanguard approach was instrumental in identifying an annual energy savings of over $500,000, which is the equivalent to a 30% reduction in energy consumption!

Do you have an energy ineFFicienT facility that you were considering reviewing? insyght is now offering a very low cost energy analysis of pumping stations to help our clients determine the best methods to reduce their ongoing energy bills.

for further information contact insyght Systems at (905)592-1258•[email protected]•www.insyghtsystems.com

Insyghtful Ideas - Pumping Energy Model Forecasts $500,000 Annual Energy Cost Savings

Providing Insightful Solutions to Our Clients’ Challenges

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BRANDoN BRISCo:A PASSIoN To SeRVe

t is not unusual for Bran-don Brisco to be called out in the middle of the night to respond to an alarm. As one of three operators for the Tilbury Water & Wastewater Area of the Chatham-Kent Public Utilities Commis-

sion, he knows it is all part of the job. Recently, issues revolved around the programmable logic controller (PLC) system that controls communication between the water tower, booster sta-tion and reservoir. When the PLC fails, Brisco must manually coordinate water levels. “Sometimes the alarms are quite vague,” he notes. “It takes a while to figure out what is wrong.”

These are only some of the many challenges Brisco addresses as part of his responsibilities managing water distribution plus wastewater treatment and collection for approximately 5,000 people in Chatham-Kent’s Tilbury area. With an average daily treatment capac-ity of 5,434 m3/day of raw sewage, the Tilbury WWTP uses an extended aera-tion process, which eliminates the con-ventional primary clarifiers, with raw sewage flowing into the biological and/or secondary treatment process. This approach facilitates removal of biochem-ical oxygen demand (BOD) and organic matter, helping improve de-nitrification. “Our residence is longer than a conven-tional activated sludge plant,” explains Brisco. “So, the bugs have more time to

work on BOD and nutrient oxidation.” The result is a higher quality of effluent and less sludge production.

The treated wastewater is then discharged into Trembley Creek where, incidentally, the operator keeps his minnows. Brisco enjoys fishing in lakes Erie and St. Clair that border the Cha-tham area where he lives and works. An avid outdoorsman, the recently-minted operator is equally passionate about the environment.

It is no wonder that, when Brisco registered at University of Guelph’s Ridgetown Campus six years ago, he decided to study environmental management. After working for seven years for Pioneer Grains, he had initially decided to pursue a career in agriculture. Then, he discovered that he could obtain two associate diplomas (agriculture and environment) in three years. The program also involved a job externship at local treatment plants to provide experience in the field.

Brisco then registered for the Opera-tor in Training (OIT) certificates and completed his Level I in all four areas: water treatment and distribution; waste-water treatment and collection. “I loved being out and about doing things, not just stuck in a lab,” he says. “You see dif-ferent things all the time. That really got me hooked on it. Plus, everybody needs water and wastewater services. I knew there were going to be jobs out there.”

After graduation, Brisco hoped to be hired as a compliance technician close

to home. Instead, he was offered a posi-tion in North Grenville, 650 km away from his hometown of Chatham-Kent. But the experience proved invaluable. “North Grenville is a small town,” he explains, “so we got to do a lot of hands-on things such as commissioning new water mains, maintaining the pump stations and taking samples. We got to learn about everything in the industry.”

In fact, days after Brisco started, the groundwater system tested positive for e-coli, placing the town under a boil water advisory. He was soon busy shut-ting down one of three pump stations, raising chlorine levels, flushing the dis-tribution system, and manually draining hydrants after flushing. A few 16-hour work days later, the system returned two negative samples 24 hours apart and the boil water order was cancelled.

“Another reason I like this career,” notes Brisco, “is that we provide a service to the public. They depend on us, as operators, to ensure safe, clean, aesthetically pleasing drinking water.”

Three years later, that is what he continues to do. Now back in the Chatham area, his responsibilities also include drinking water distribu-tion. Although the water is treated at Wheatley’s surface water plant, with only secondary testing done at Tilbury, Brisco hopes to become involved in primary drinking water treatment once again. “I am going to try to maintain my licence by working out in Wheatley too,” he explains.

In fact, Brisco plans to continue upgrading his certificates so he can eventually become a Level IV Operator. “That is another thing I enjoy,” he says. “I am always learning something.” Someday, he hopes to progress to the position of Chief Operator or maybe even Manager.

o P e R AT o R P R o F I l e

Another reason I like this career is that we provide a service to the public. They

depend on us, as operators, to ensure safe, clean, aesthetically

pleasing drinking water.78 Spring 2011INFlueNTS Click HERE to return to Table of contents

NeW WASTeWATeR ColleCTIoN exAmS ARe ComING SooNthe Ontario Water and Wastewater Certification Office (OWWCO)

How are operator certification exams developed?A lot of work goes into developing oper-ator certification exams. Fortunately, Ontario and other North American cer-tification programs are supported by the Association of Boards of Certification (ABC), a non-profit association of states and provinces dedicated to advancing operator certification.

The first step in developing exams is to conduct a job task analysis. This deter-mines the tasks an operator performs and the relative importance of these tasks compared with other tasks. Using this information, ABC determines the types and number of questions required on each exam. Next, using teams of senior operators from across North America, ABC develops exam questions, which are reviewed and tested prior to release. In addition, the relative difficulty of each question is assessed by ABC so that Class I-IV exams reflect the required level of knowledge for each class.

In Ontario, questions supplied by ABC are further reviewed by teams of Ontario operators. This review ensures that questions meet Ontario’s regulatory requirements, reflect technologies used

in Ontario, and that English spelling and metric units are used. Finally, 100 questions are chosen, which make up each class of exam.

However, the process does not end there. Once an exam is set and used, the teams of Ontario operators and ABC review and analyse the perfor-mance of questions in the new exams. Based on statistical analysis and opera-tors’ comments about the exams, any ineffective questions will be further edited or removed.

Changes to ontario examsOver the next two to three years, Ontario’s exams will change. Ontario will be adopting the Canadian Stan-dardized Operator Certification exams, which are currently used in most provinces in Canada. The first series of exams to be changed will be the wastewater collection exams starting in March 2011. Wastewater treatment and drinking water exams will follow next year.

How are these different from the current exams?The Canadian Standardized Exams

are based on ABC questions, similar to Ontario’s current exams. Teams of operators from across Canada are used to review and choose the ques-tions for each exam. The Ministry of the Environment will further review the questions and may make minor adjustments to each exam to reflect unique differences between Ontario and other provinces. Although actual exam questions will be changed, the overall content and difficulty level of the exams will not. To accurately reflect the content of the new exams, new Need-to-Know documents for the Wastewater Collection exams have been posted at www.owwco.ca.

Why is ontario changing the exams?The change will ensure greater stan-dardization of exams across Canada. It also allows each province, with the support of exam experts at ABC, to pool their resources to develop the best exams possible. Finally, this change is expected to improve how we ensure that our exams continue to be effective and relevant in the years to come.

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o P C e A P R o F I l e

HANS VAN De leyGRAAF: GRoWING oPPoRTuNITIeS

or more than 20 years, Hans van de Leygraaf – known professionally as Hans Leygraaf – has been supplying and specifying gas handling, process and vacuum equipment to municipali-ties and industry. After

entertaining a career as a self-described “tree hugger,” the water and wastewa-ter technologist started his work life as a sales partner with Brim Pumps. He credits OPCEA for helping him evolve to the next level: developing a manu-facturer’s sales agency that eventually became the successful Process Vacuum Technology company.

“OPCEA introduced me to a world from which I have never looked back,” says Leygraaf. “John Plakson helped me start my process sales career; he is an excellent sales manager. Ross Humphry taught me to become an expert in my field; as he is an expert in his. And Larry Madden, by his absence, helped me start my new business.”

Like these colleagues, Leygraaf served as president of the association. In his case, it was in 1989, the same year he was poised to secure the SIHI product line in partnership with Larry Madden. But, on the day they were to sign the contract, Madden announced he had accepted a position with Control and Metering.

“A little surge of panic set in,” recalls Leygraaf. But, he went ahead with the deal and has never looked back.

Today, Process Vacuum Technology handles projects ranging from anaero-bic gas to nuclear helium compressors; priming systems to chemical reactors; and, food and pharmaceutical processes to water and waste water treatment packages. “As a company, we supply gas compression and vacuum technology in all markets,” explains Leygraaf. “The markets and technology constantly change. The challenge is applying the right technology to provide solutions that reduce cost and increase efficiency. The reduction of water, energy and utility consumption in a process, while

increasing value for the client or their product, is our ultimate goal.”

On the wastewater and water side, applications include using dissolved air flotation systems to remove suspended solids, removing dissolved gases from water distribution systems, and collect-ing gases from anaerobic digesters. “We can also supply equipment to take those gases and compress them for use in cogeneration systems,” says Leygraaf.

Constant change and opportunity continue to characterize the develop-ment of Process Vacuum Technol-ogy. At one point, when government investment in waste water dried up, the company became more involved with the environmental needs of industry. “It was a challenge to switch gears and transfer some of the technology from the municipal to the industrial sector,” recalls Leygraaf. “But, it provided good opportunities to expand.”

Over the years, he has provided small dissolved air flotation systems of up to 25 m3/h under the MG Environ-mental banner (another company he owns), while designing and building water recycling systems for process industries. His principal suppliers –

SIHI Pumps, B-M Peerless, Flow Safe and All Star – are innovative leaders in their industries, a feature which con-tributes to the success of the company.

“Our section of the industry has become so much larger and so much more focused at the same time,” notes Leygraaf, adding that his small slice of the environmental control industry generates a large amount of business nonetheless.

Three decades into his career, he still finds the business both rewarding and challenging. “I am doing my bit for the environment, just along different paths than I thought I would,” says Leygraaf. “Outside of work, the new ‘opa’ is a double bassist for a junior string orchestra. He also enjoys mountain biking, skiing or hiking and has been known to still hug the odd tree.

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o P C e A N e W S

he Water Envi-ronment Asso-ciation of Ontario (WEAO) held a forum in conjunc-tion with various Ministries of the Government of Ontario at Queen’s

Park on January 20, 2011. Attendance at this forum included government representatives from the Ministry of the Environment, the Ministry of Economic Development and Trade, the Ministry of Research and Innovation, and the Ministry of Education. Other attendees included representatives from the Ontario Coalition for Sustainable Infrastructure, WEAO and OPCEA. During the forum, OPCEA presented an overview of the association and touched on what our interests are as equipment manufacturers and representatives in Ontario.

Of particular interest to OPCEA members was the presentation by Marek Karwowski, of the Ministry of Economic Development. Mr. Karwowski’s pre-sentation focused on opportunities for Ontario businesses in other countries, specifically focusing on small businesses, including manufacturers and service pro-

viders. The Ministry of Economic Devel-opment offers a variety of workshops and seminars including market expansion sessions and workshops to those that are new to exporting their products and services outside of Ontario and Canada. The Ministry of Economic Develop-ment also leads trade missions to various countries, and organizes trade groups to visit Ontario in order to promote Ontario businesses. You can find out more about the Ministry of Economic Development at www.ontarioexports.com.

The changes that the WaterOppor-tunitiesAct and WaterConservationAct will bring to the water industry were discussed throughout the day. Its purpose is to make Ontario a leader in developing water technologies and services, and to make that expertise available throughout the world. The goal is to protect water resources and promote water conserva-tion. The WaterOpportunitiesAct will make it easier to demonstrate new tech-nologies for treatment within Ontario. The Water Technologies Acceleration Project (WaterTAP) is part of this act, in which a government corporation is to be set up to provide a forum for the govern-ments, the private sector and the aca-demic institutions in order to exchange

FoRum oN PRoVINCIAl mINISTRIeS AND WASTeWATeR ISSueStonia Van Dyk, C&M environmental technologies Inc.

information on new technologies and development of certification programs. The WaterOpportunitiesAct,2010 can be found online at http://www.ontla.on.ca/bills/bills-files/39_Parliament/Session2/b072ra.pdf.

Ken Albright of the Ministry of Research and Innovation (MRI) presented to the forum on how the wastewater industry can contribute to the research and innovation agenda. MRI supports a broad spectrum of technologies, and there is a definite area that the wastewater industry can access for assistance. MRI is looking for input as to what types of tech-nology are offered by small businesses in the wastewater industry, and what type of assistance is required by these businesses. You can find out more about MRI, includ-ing types of funding and assistance that are offered, at www.mri.gov.on.ca. The forum is discussed in more detail in the Executive Director’s Corner in this issue.

oPCeA Tradeshow April 10-12, 2011 at the Westin Harbourcastle, TorontoThe registration packages for the upcom-ing OPCEA Tradeshow will be mailed in the near future. Watch for yours and register early as the booths sell out fast!

Visit us online atwww.weao.org of water and wastewater

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Working for the public good

After working in the field of

water and wastewater for

44 years, Volker Masemann

retired on December 23, 2010.

It was a career that took

the civil engineer around

the world, into virtually

every aspect of the industry,

including planning, design

and construction, for both

liquids and solids streams.

In the process, he touched the

lives of many young engineers,

mentoring them, as he says,

“by example.”

“You need to keep asking yourself why you are in this field in the first place,” reflects Masemann. “How is what you are doing making a contribution to society’s well-being?”

It is this very approach which has governed his own work, everything from designing a 1,250 m3/d waste-water treatment plant in Kleinburg, Ontario, to conducting process audits and process optimization at a 648,000 m3/d sewage treatment plant in São Paulo, Brazil.

Masemann started his career as a junior engineer with Proctor & Red-fern, shortly after graduating from the University of Toronto (U of T) in 1966. A year later, he and his wife decided to volunteer with CUSO and taught high school at a girls’ boarding school in Ghana for two years. On their return, Masemann continued his studies at the U of T, graduating with his Masters in Sanitary Engineering, while his wife completed her Ph.D. in anthropology.

The young engineer then went to work with water and wastewa-ter specialist James F. McLaren and

Associates from 1970 to 1988, a stretch interrupted only by a brief three-year stint as a stay-at-home parent to their three young daughters in Madison, Wisconsin. Eventually, McLaren was purchased by Lavalin, and Mase-mann was promoted to the position of manager of the Wastewater Group in Toronto. In 1988, he returned to Proctor & Redfern as a senior waste-water consultant, and was promoted to department manager five years later.

“I really did not like the manager role,” recalls Masemann, “because there was more managing and less technical work.”

Deciding to make a change, Mase-mann moved with his wife to Tallahas-see, Florida, where she had been hired by Florida State University. For two years, he studied landscape design and management, while looking after the youngest two of a total of five daugh-ters, the other three being away at university. In the end, the desire to live in Canada prevailed, and, in the late 1990s, he returned to Proctor & Red-fern, this time in a more technical role.

“My career developed into doing work for big treatment plants,” says Masemann, adding that he greatly enjoyed the work because of the variety of issues to be confronted. Over the past decade, during which Proctor & Redfern was purchased by Earth Tech, which was then acquired by AECOM, the senior water management division consultant has been involved in several large projects throughout Ontario and the world.

Locally, these projects have recently included environmental assessment, design and expansion of the Region of Peel’s Clarkson wastewater treatment plant, as well as design of an odour control upgrade for the City of Toron-to’s Ashbridges Bay treatment plant. Internationally, Masemann has been

involved in projects in Brazil, Jamaica, Ecuador, Nicaragua, Barbados, Cyprus, Nigeria and Ghana.

In fact, over the past four and a half decades, he has travelled numer-ous times to Europe, Africa and South America, either to work on projects or to study technology for use in Cana-dian plants. He cites one of the greatest satisfactions of his career as being able to incorporate these broad international connections into his work. For instance, in the 1990s, he spent some time in Germany, where he had the opportunity to use his mother tongue, looking at various installations of sludge dewater-ing and pumping equipment. He then applied this knowledge to his work at the Duffin Creek water pollution control plant in Pickering, Ontario, acting as project manager for the Stage II expansion of that plant over a four-year period, including extension of sludge dewatering and incineration facilities.

His interest in the management of solids residuals also led to a compre-hensive review of biosolids management alternatives for the Region of Peel’s South Peel System, and a Master Plan Study of biosolids management alternatives for the City of Kingston. He was also active for some years on the Residuals and Bio-solids Committee of the Water Environ-ment Association of Ontario.

The effect of his work on the people and the environment served by waste-water treatment facilities is something Masemann has always kept foremost in mind while going about his everyday work. If there were but one principle the veteran engineer could convey to those coming up in the profession, it would be a sense that everything they do is essential to the overall goal of providing a benefit to society. “After all,” says Masemann, “as wastewater engineers, we are not just technicians; we are environmentalists.”

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R e G u l AT o Ry N e W S

THe oTHeR HAlF oF THe GReeN eNeRGy equATIoN: eNeRGy CoNSeRVATIoN AND eNeRGy eFFICIeNCyJuli Abouchar and Joanna Vince of Willms & shier environmental lawyers llP

n a world increasingly concerned with energy, the focus is often on the source of energy. Discus-sions on energy are often framed by a debate about whether we should con-tinue to use fossil fuels or move to renewable sources

of energy such as wind and solar. The other half of the energy equation – con-servation and improved efficiency – is frequently forgotten in these debates.

This is unfortunate. Decreasing energy consumption can have a large impact on our dependence on fossil fuels and can reduce our greenhouse gas emissions. The concept is fairly simple – improve energy efficiency, reduce energy consumption, reduce energy production.

Despite the lack of public enthusiasm for energy efficiency, the Ontario gov-ernment has recognized its importance. The GreenEnergyandGreenEconomyAct (GEGEA) was enacted in May 2009. The GEGEAcreated the GreenEnergyAct1and amended 16 exist-ing statutes. While much of the public debate around the GEGEA centered on its promotion of renewable energy gen-eration, the GEGEA actually has two major components. One component was the greatly publicized energy genera-tion provisions. The other component addressed energy conservation.

We often think of improving energy efficiency in terms of household use of electricity, e.g., purchasing appliances, such as refrigerators or air condition-ers, that use less electricity to perform their functions. We may also think of improving energy efficiency in larger industrial settings, such as manufactur-ing facilities. Until recently, however, the energy efficiency of water and wastewater treatment has not been widely discussed.

Water and wastewater treatment are large consumers of energy. A recent study on the link between water and energy found that the amount of energy used each year by water-related ser-

vices, including pumping, was equiva-lent to the energy required to heat every home in Canada.2

The GreenEnergyActcreated under the GEGEAhas been created to address energy conservation and efficiency in residential, industrial, commercial and governmental contexts. The GreenEnergyActallows regula-tions to be made for the purpose of promoting energy conservation. This is achieved by designating goods, services and technologies in a way that will pro-mote energy conservation. Once goods, services or technologies are designated in regulations, those items can be used despite any laws, by-laws, encum-brances or agreements that otherwise prevent or restrict their use.3

Regulations have been created under this provision of the GreenEnergyAct. To date, however, the only goods, services or technologies designated are clotheslines, clothestrees, and any goods and technologies that have the same purpose as a clothesline or clothestree.4

The GreenEnergyActhas further provisions that prevent the sale of appliances or products that do not meet prescribed efficiency standards. All appliances and products must have a label that confirms compliance with the efficiency standards.5 Here again, regula-tions specify the appliances and products that are required to meet the efficiency standards. To date, these are primarily household items such as lamps, lights, refrigerators, heaters, air conditions and water source heat pumps.6

At a larger scale, regulations can be made under the GreenEnergyActrequiring public agencies to consider energy conservation and energy effi-ciency when purchasing goods and services or making capital investments. This could affect municipalities oper-ating water or wastewater treatment facilities. When installing, updating, or repairing these facilities, municipalities may be required to consider the instal-lation of energy efficient components, such as pumps, or the creation of entire

facilities that are energy efficient. At this time, there are no regulations requir-ing public agencies to consider energy conservation and energy efficiency.7

Last, the GreenEnergyActallows for regulations requiring public agen-cies and prescribed sectors to prepare energy conservation and demand management plans. These plans could require agencies and sectors to meet energy and environmental standards.8 The Ministry of Energy has released Directives on Conservation relating to these plans, and setting out programs to be run by the Ontario Power Author-ity and local distribution companies. Efficiency programs include the fridge and freezer pickup, the heating and cooling incentive, and the help-ing homes conserve program, which focuses on providing water efficient products including showerheads and faucet aerators.9

Given the large amount of energy used by water and wastewater treat-ment facilities, the high cost of using energy for these facilities, and the potential to decrease energy consump-tion and greenhouse gas emissions, water and wastewater treatment facili-ties would be an ideal candidate for energy reduction under these provi-sions. The Ontario Power Authority and local distribution companies are already taking steps to create programs for industrial facilities in 2011. Pro-grams are being put in place to provide rebates for installing energy efficient lighting, improving the function of air conditioners and improving the energy efficiency of chilled water plants. There are also programs that will provide funding to perform energy audits on industrial facilities.10

The newly-enacted WaterOppor-tunitiesandWaterConservationAct,2010has added to the efficiency measures introduced in the GEGEA.By amending the OntarioWaterResourcesAct,the WaterOpportunitiesandWaterConservationAct,2010has included water efficiency requirements for appliance and products similar to

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Joanna VinceJuli Abouchar

Juli is an environmental law specialist certified by the Law Society of Upper Canada. She was assistant commission counsel to Justice O’Connor during the Walkerton Inquiry, serves as a member of the CTC Source Protection Committee and is a director of the Ontario Clean Water Agency.

Joanna is a student-at-law, with a degree in biology and environmental science and a certificate in environmental studies. She has commented to the province on numerous government regulations, plans and negotiations involving water issues.

those contained in the GreenEnergyAct.11 Improving water efficiency can reduce energy consumption. If less water is used or required, then less water will need to be treated and pumped through various processes and to end users. For example, the City of Toronto has identi-fied that the electricity required to treat water for the city could be reduced by 550 million kWh annually by increasing water efficiency.12

The WaterOpportunitiesandWaterConservationAct,2010has also created the WaterOpportunitiesAct.13The WaterOpportunitiesActgives the Ministry of the Environment the power to require municipal water sustainability plans. The plans will have to be prepared by municipali-ties and other regulated entities for all water, wastewater and stormwater services.14 The content of the plans will be set by regulations, but plans will likely be required to include an asset management plan for the physi-cal infrastructure, a water conserva-tion plan, and a strategy to consider technologies, services and practices that promote water efficiency.15 The Ministry of the Environment can also require municipalities to achieve per-formance targets.16

The WaterOpportunitiesActalso allows for regulations requiring public agencies, including municipalities to prepare water conservation plans. These plans could require public agen-cies to meet water conservation targets and comply with other prescribed envi-ronmental standards, such as energy efficiency. The WaterOpportunitiesActalso allows for the co-ordination of water conservation plans with energy conservation and demand management plans under the GreenEnergyAct.17

The use of provisions under the GreenEnergyAct,the WaterOppor-tunitiesActand the OntarioWaterResourcesActwill have an important impact for water and wastewater treatment facilities. If provisions under the GreenEnergyAct are applied to water and wastewater treatment facilities, these facilities will become accountable for the amount of energy consumed. By examining the treat-ment process, including the type and design of pumps, facility operators can greatly reduce energy use. Similarly, water sustainability plans and water conservation plans will require munici-

palities and other entities to ensure that water and wastewater services are water efficient. In addition, regula-tions that create standards for water efficient products will decrease water consumption and, as a result, decrease energy used by water and wastewater treatment facilities. These regulations will reduce greenhouse gas emissions, decrease electricity use and open funds to be used for other endeavours – something that is particularly impor-tant for many of Ontario’s financially stressed municipalities.

end notes1 S.O. 2009, c. 12.2 C.. Maas, Ontario’sWater-EnergyNexus:WillWeFindOurselvesinHotWaterorTapintoOpportunity? POLIS Project on Ecological Governance (Uni-versity of Victoria: 2010).

3 GreenEnergyAct,s. 4.4 O. Reg. 97/08.5 GreenEnergyAct,s. 15.6 O. Reg. 82/95, Schedule.7 GreenEnergyAct,s. 8.8 GreenEnergyAct,s. 6.9 See the Ministry of Energy’s Search-ableIncentivesGuide for all programs currently available. Online at http://www.mei.gov.on.ca/en/energy/conservation/?page=conservation-pro-grams-search.

10 See the Ministry of Energy’s SearchableIncentivesGuide for all programs cur-rently available. Online at http://www.mei.gov.on.ca/en/energy/conservation/index.php?page=conservation-programs-search-results&form_action=process&L

ocationRegion=all&LocationPostalCode=&LocationMunicipality=&NameKeyword=&ProgramStatus2=&SearchChooseOne=all&Sector=7&GeneralTopic=all

11 OntarioWaterResourcesAct, R.S.P. 1990, c. O. 40, ats. 34.12.

12 City of Toronto, Staff Report: Climate Change, Clean Air and Sustainable Energy Action Plan: Moving from Framework to Action (June 2007).

13 S.O. 2010, c. 19 [WAO].14 WAOs. 24-25.15 WAOs. 26.16 WAOs. 29.17 WAOs. 36-37.

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e N G I N e e R S W I T H o u T B o R D e R S

IGNITING ImPRoVeD SANITATIoN PRACTICeS IN RuRAl mAlAWIAllison langille

he experiences of Engineers Without Borders (EWB) overseas volunteers are raw with the realities of life in rural Africa, such as the effects of water-borne dis-

eases caused by poor sanitation practices.Keith Arnstead, a short-term volun-

teer from EWB’s University of Regina chapter, spent his summer working in rural Malawi to apply a behaviour-change approach to improved sanitation practices.

The approach is called Community Led Total Sanitation (CLTS), and it helps rural communities recognize that they have the knowledge, materials and skills to abstain from open defecation and build safe sanitation facilities and practices.

Realizing traditional development failuresWithin weeks of arriving in Malawi, Keith had already helped trigger sanita-tion behaviour change in five com-

eNGINeeRS WITHouT BoRDeRS CeleBRATeS 10TH ANNIVeRSARyDon Kemp, P.eng. AeCOM

ngineers Without Borders Canada celebrated its 10th anniversary at its National Conference held January 14-15 at the Allstream Centre, Exhibition Place,

Toronto. The Centre is the first LEED certified conference facil-ity in Canada. The event attracted some of Canada’s brightest engi-neers, students and development thinkers who discussed the chal-lenges faced by EWB volunteers in Africa and gained perspective on some of the trickier problems faced by those trying to make a difference

Danielle Zacarias, Corporate and Donor Relations Coordinator, engineers Without Borders – Canada, and Don Kemp, WeAO President at engineers Without Borders national Conference

in the developing world. WEAO was invited to participate in the conference, and Don Kemp, Presi-dent, attended on its behalf. There were more than 1,200 delegates at the conference, which was named Kumvana, a Chichewa (it is one of Malawi’s National languages) word meaning unitesowemaydiscussandunderstand. Engineers Without Borders creates opportunities for rural Africans to access clean water, generate an income from small farms, and have improved access to the services and infrastructure they need to improve their lives. It harnesses the problem-solving approach and creative pragmatism

of the Canadian engineering sector to address the root causes of pov-erty in rural Africa. Visit Engineers Without Borders at www.ewb.ca.

eWB overseas volunteer Dan Beck speaks with a woman while a community walks as part of a Community-led total sanitation facilitation in Malawi

86 Spring 2011INFlueNTS Click HERE to return to Table of contents

munities with the Community Led Total Sanitation approach. His experiences in the last village, called George Nkosi, were particularly poignant.

“I arrived at George Nkosi village to implement the Community Led Total Sani-tation approach, and, at first, everything seemed to be going just like the others,” says Keith. “But, after looking around for a few minutes, I began to see that this would not be a regular sanitation triggering.”

What Keith saw was the entire com-munity of George Nkosi under a giant tree sitting on unused latrine covers – called sanitary platforms – awaiting the Com-munity Led Total Sanitation facilita-tion. These sanitary platforms are often dropped off by large development organi-zations, in an attempt to change sanitation practices by providing the materials to build new latrines.

Taking a behaviour change approachSoon after their arrival, Keith and the facilitation team went around with the villagers to identify where open defecation had occurred. They did so to discuss the link between their food and water supply, and the practice of open defecation.

The idea is to drive a sense of disgust about the outcomes of poor sanitation. At the same time, Keith and the other facilitators helped the community mem-bers work out the costs associated with open defecation. Health clinics and medicines are expensive ways to manage diseases that often result from open defecation. The Community Led Total Sanitation approach helps the communi-ties see this link more clearly.

“The idea is that we do not tell the community to build latrines,” says Keith, “It is the community’s own idea and ownership of the idea that makes change last. After the Community Led Total Sanitation facilitation, they feel a sense of shame and disgust about practicing open defecation – and that motivates them to take action.”

Igniting the desire to improve sanitationShortly after the training had occurred, the Village Headman George Nkosi announced that the unused sanitation platforms would be put to use by the next day, so the community could begin build-ing effective latrines.

In this moment, Keith recognized that the village was taking control of their future

as a result of the knowledge and skills that their work that day had imparted.

“It was exciting to see the com-munity members change – and know that it had not been donor-imposed on them without any hope of it changing their behaviour. This is why Com-munity Led Total Sanitation works, because it ignites sustainable change from within,” notes Keith.

The futureThis is just the beginning for George Nkosi village, as it is for the other

four villages where Keith helped to improve sanitation practices.

Government field workers continue to facilitate this behaviour change approach in more communities, as George Nkosi village has reached their open-defecation-free certification.

At times, life in rural Africa is ripe with seemingly insurmountable hurdles. But then there are days like the one Keith spent in George Nkosi vil-lage, where rural African communities are taking the steps necessary to ensure they live prosperous lives.

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C W W A u P D AT e

2010 WINDoW oN oTTAWA CoNFeReNCeTuRNING oVeR A NeW PAGe FoR CWWAJohn Duong, M.eng., P.eng., CWWA Director

he annual Window on Ottawa Confer-ence was held December 1 and 2 at the Crowne Plaza Hotel in downtown Ottawa and was

attended by over 161 delegates from across Canada. The Window included the Water Utility Security and Biogas workshops and speakers from federal departments and national agencies. Not surprisingly this year, delegates showed a keen interest in the topics of the Federal Wastewater Systems Effluent Regulations, the new CCME Biosolids Task Group, and an update regarding the Infrastructure Stimulus Funding.

This year’s Window represented a changing of the guard, as, for the first time in 16 years, Duncan Ellison attended as a delegate and not as the executive director of CWWA. During the annual dinner, a special tribute was made honouring Duncan for his years of service and all the sweat and tears he put into the association. Duncan was presented with a wonder-ful self-portrait exemplifying his great contributions to CWWA.

Not to be outdone was the inaugu-ration of the new president or Change of Office Ceremony for none other than WEAO’s Rosanna DiLabio. For some of those who are not aware, Rosanna is also the upcoming presi-dent of WEAO for 2011/2012. I think

the provincial elections may be coming up soon as well, if Rosanna feels she wants to take on a little more.

InternalCWWA continues to work at improving its internal structure and to evaluate current member services to identify strengths and areas that need improvement. To help achieve that goal, CWWA recently developed and circulated a member survey that is polling members on the quality of our events, communication tools and other services. The deadline for responses was January 17, 2011 and they will be summarized and communicated to the Board and members in future communications.

CWWA’s Board of Directors met for their bi-annual meeting in December, discussed the association governance, and approved the 2011 budget. The association also hosted its Annual General Meeting, where the new Board was approved.

In the NeWSDuring the fall of 2010, CWWA collab-orated with the Federation of Canadian Municipalities to provide feedback and technical suggestions for improvements to Environment Canada (EC) regarding the WastewaterSystemsEffluentRegu-lation, proposed under the FisheriesAct. The recommendations have been taken into consideration, and Environ-ment Canada has indicated that there will be some changes to the Regulation. One of the much more debated topics is

the issue of combined sewer overflows. However, EC has indicated that, while the mechanism and exact requirements for combined sewer overflow reporting and reduction remain under revision to make them more achievable for munici-palities, they will not be removed, as had been recommended by CWWA. EC has committed to sharing the draft text of the Regulation when it is available. The final version of the Regulationis expected to be published in CanadaGazettePartII in late spring.

International workCWWA has developed an International Business Development Strategy that proposes accessing the Global Oppor-tunities for Associations funding from the Department of Foreign Affairs and International Trade. CWWA is targeting obtaining partnerships in South-East Asia and Australasia. By increasing Canadian participation, the association would strengthen international part-nerships and relations, share technical expertise with our international counter-parts, attract international speakers and improve international business relation-ships, and help open international mar-kets for our private sector members. The proposal has been submitted to Foreign Affairs and International Trade Canada, and CWWA is waiting for feedback.

upcoming events• One Voice Workshop with member

associations, CAC-AWWA and CAC-WEF – April 13, 2011, Montreal, Quebec

• The 4thCanadianWastewaterManagementConference – May 17-19, 2011, Toronto, Ontario. The conference will include a specialty workshop on water audits, hosted by the Energy Reduction Committee

• The 4thCanadianConferenceonWaterEfficiencyandConservation – October 17-19, 2011, Ottawa-Gatineau

Honouring Duncan ellison at the President’s Annual Dinner

Change of Office Ceremony for incoming President, Rosanna Dilabio

88 Spring 2011INFlueNTS Click HERE to return to Table of contents

On display from March 5 to September 5, 2011, the Royal Ontario Museum (ROM) presents Water: The Exhibition, a celebration of the power and wonder of this life-giving substance and a call to each of us to become stewards of our blue planet. A dramatic sensory and educational experience for visitors of all ages, Water uses cutting-edge technologies, multimedia installations, hands-on exhibits, live animals and cultural artifacts to illuminate the indispensable role water plays in our lives and the urgent need to protect it.

This immersive and engaging exhibition is divided into 10 sections examining water from a scientific, environmental and cultural perspective. The first several sections consider the unique physical and chemical properties of water, its origins and the critical role it plays in the natural world. Next, aspects of water use are explored, including its importance culturally and how humans manipulate our water resources. The final area illuminates impacts of our actions and what each of us can do to reduce water usage to help renew and protect the Earth’s lifeblood.

Complementing the exhibition is a diverse series of lectures, panels and symposia providing an engaging public forum to address pressing and controversial issues around water. For further information on Water: The Exhibition or its accompanying programming, Water: The Forum, visit www.rom.on.ca/water.

WEAO members are entitled to discounted admissions to the ROM. The discount offers 20 - 30 per cent off of the regular admission price, depending upon the ticket category (child, student, adult or senior). To redeem the discount follow the instructions found on the WEAO website in the ‘Member Only’ section and purchase the tickets to the ROM on-line.

89 Spring 2011INFlueNTSClick HERE to return to Table of contents

marCH 2011

Mar. 8 Residuals & Biosolids Committee

Mar. 8 Region of Waterloo - Grand River Simulation Module Workshop Stantec Consulting 49 Frederick Street Kitchener 10:00 a.m.

Mar. 8 Board Meeting AECOM Offices Mississauga 9:30 a.m.

Mar. 10 Conference Committee WEAO Office Milton 9:30 a.m.

Mar. 11 Committee Chairs Group AECOM Office Markham 9:30 a.m.

Mar. WEFMAX 201117-18 Atlantic City, NJ

Mar. Americana 201122-24 Palais des congres

de Montreal

Mar. 29 Operations Challenge Committee WEAO Office Milton, 10:30 a.m.

Mar. 31 Conference Committee WEAO Office Milton 9:30 a.m.

aprIL 2011

Apr. 7 Communications Committee Meeting AECOM Markham 10:00 am.

Apr. 40th Annual Technical10-12 Symposium & Exhibition

The Westin Harbour Castle Hotel, Toronto

Apr. 10 Board Meeting President’s Suite Westin Harbour Castle 1:00 p.m.

Apr. 10 WEAO Annual General Meeting 4:00 p.m.

Apr. 12 Operator Certification & OIT Examinations Westin Harbour Castle 9:00 a.m.

Apr. WEFMAX 201114-16 YP SUMMIT

Louisville, Kentucky

Apr. 20 Government Affairs Committee Durham Region Duffin Creek, Pickering 10:30 a.m.

Apr. WEFMAX 201128-29 Davenport, Iowa

maY 2011

May WEF Seminar Industrial9-10 Wastewater Seminar

Atlantic City, NJ

May 11 PWO Central Conference Horseshoe Resort Horseshoe Valley 8:30 a.m.

May 4th Canadian Wastewater17-19 Management Conference

Crown Plaza, Toronto Airport

May 6 Submission Deadline for INFLUENTS

May WEFMAX 201119-20 British Columbia

Canadian Affairs Council Meeting Canadian SYP Summit Vancouver, BC

May WEF Conference22-25 Residuals & Biosolids 2011

Sacramento, CA

C A l e N D A R o F e V e N T S

90 Spring 2011INFlueNTS Click HERE to return to Table of contents

JUne 2011

June WEF Conference12-15 Collection Systems 2011

Raleigh, NC

June 15 Government Affairs Committee City of Toronto Metro Hall, Toronto 10:30 a.m.

June 17 INFLUENTS Release Date

JULY 2011

July 21 Communications Committee Meeting

aUGUst 2011

Aug. 5 Submission Deadline for INFLUENTS

Aug. 17 Government Affairs Committee Hatch Mott MacDonald Markham 10:30 a.m.

Check for updates on our web site www.weao.org

septemBer 2011

Sept. 16 INFLUENTS Release Date

Sept. 21st Annual Conference of19-21 The Compost Council of

Canada Delta Prince Edward Charlottetown, PEI

Sept 6th National Residuals &25-27 Biosolids Conference

HOSTED BY RESEAU Environnement,Centre des Congres, Quebec City

OCtOBer 2011

Oct. 15 Great Canadian IceBreaker Los Angeles, CA

Oct. WEFTEC®201115-19 Convention Center

Los Angeles, California

Oct. 17 Canadian Affairs Council Meeting Convention Center Los Angeles, California 1:30 p.m.

Oct. 19 Government Affairs Committee TBA, 10:30 a.m.

Oct. 20 Communications Committee Meeting

Oct. 27 Joint WEAO/OWWA Climate Change Committee Seminar

nOVemBer 2011

Nov. 4 Submission Deadline for INFLUENTS

DeCemBer 2011

Dec. 14 Government Affairs Committee GENIVAR, Markham 10:30 a.m.

Dec. 16 INFLUENTS Release Date

Reduce costs. Reduce complaints.

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– Eliminates scrubbers or significantly reduces scrubber load

– Minimal startup cost; very easy installation

Meet the new odor killer.

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1-888-PARKSON

www.parkson.com

91 Spring 2011INFlueNTSClick HERE to return to Table of contents

Our cOncern fOr the environment is mOre than just talk

So enjoy this magazine...and keep thinking green.

We use lighter publication stock that consists of recycled paper. this paper has been certified to meet the environmental and social standards of the forest stewardship council® (fsc®) and comes from responsibly managed forests, and verified recycled sources making this a reneWaBle and sustainaBle resource.

Our computer-to-plate technology reduces the amount of chemistry required to create plates for the printing process. the resulting chemistry is neutralized to the extent that it can be safely discharged to the drain.

We use vegetable oil-based inks to print the magazine. this means that we are not using resource-depleting petroleum-based ink products and that the subsequent recycling of the paper in this magazine is much more environment friendly.

as we continue to deliver valuable information through the pages of this magazine, in a printed format that is appealing, reader-friendly and not lost in the proliferation of electronic messages that are bombarding our senses, we are also well aware of the need to be respectful of our environment. that is why we are committed to publishing the magazine in the most environmentally-friendly process possible. here is what we mean:

During the printing process, we use a solvent recycling system that separates the water from the recovered solvents and leaves only about 5% residue. this results in reduced solvent usage, handling and hazardous hauling.

We ensure that an efficient recycling program is used for all printing plates and all waste paper.

Within the pages of each issue, we actively encourage our readers to reuse and recYcle.

in order to reduce our carbon footprint on the planet, we utilize a carbon offset program in conjunction with any air travel we undertake related to our publishing responsibilities for the magazine.

92 Spring 2011INFlueNTS Click HERE to return to Table of contents

P R o F e S S I o N A l D I R e C T o Ry

looKING To ReACH WASTeWATeR

PRoFeSSIoNAlS IN oNTARIo?

Darrell Harris, Sales managerToll Free: 877-985-9793Fax: 866-985-9799e-mail: [email protected]

To reach ontario’s wastewater industry professionals through Influents and its targeted readership, contact Darrell at your earliest convenience to discuss your company’s promotional plans for 2011.

• intelligent, intuitive fine bubble aeration designs• highest efficiency oxygen transfer• proven worldwide in more than 25 years of service• quickest and easiest installation and maintenance• uniquely environmentally friendly

HydrO-lOgiC EnVirOnMEnTAl inC. Fax: 905-777-8678 Phone: 905-777-9494 [email protected] www.hydrologic.ca

C.l inC. Fax: 905-777-8678 Phone: 905-777-9494 [email protected] www.hydrologic.ca

C.

OTT Fine Bubble Diffusers

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www.mmm.ca

Returning Organics to Agriculture with N-Viro Soil™ Amendment

Producing Clean Energy from Organics with N-ViroFuel™

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465 Clair Road, Guelph, N1L 1R1 Telephone: 519-766-1152

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SCADA Integration ◆ Control & VFD Panels ◆ Applications Support Electrical Install ◆ Instrumentation & Site Services ◆ Turnkey

93 Spring 2011INFlueNTSClick HERE to return to Table of contents

D I R e C T o Ry o F A D V e R T I S e R S

Company Phone Website Page

INFLUENTS would not be possible without the advertising support of these companies and organizations. Please think of them when you require a product or service. We have endeavoured to make it easier for you to contact these suppliers by including their telephone number and, where applicable, their websites. you can also go to the electronic version of INFLUENTS at www.weao.org and access direct links to any of these companies.

Company Phone Website PageCompany Phone Website Page

John Brooks Company Limited 877-624-5757 www.fluidhandlingsolutions.com 67, 87

Kemira Water Solutions Canada Inc.

800-465-6171 www.kemira.com 51

KSB Pumps Inc. 905-568-9200 www.ksb.ca 51

Markland Specialty Engineering Ltd.

855-873-7791 www.sludgecontrols.com 35

Master Meter, Inc. 800-765-6518 www.mastermeter.com 10

Metcon Sales & Engineering Ltd. 905-738-2355 www.metconeng.com 3

MMM Group Limited 905-882-1100 www.mmm.ca 93

Nelson Environmental 888-426-8180 www.nelsonenvironmental.com 91

NETZSCH Canada Inc. 705-797-8426 [email protected] 69

N-VIRO Systems Canada LP 416-360-5907 www.n-viro.ca 93

Ontario Clean Water Agency 800-677-6294 www.ocwa.com 96

Osprey Scientific Inc. 800-560-4402 www.ospreyscientific.com 20

Pace Dewatering Systems (Canada) Ltd.

800-465-2115 www.paceds.com 81

Parkson Corporation 514-636-8712 www.parkson.com 91

Pollardwater.com 800-437-1146 www.pollardwater.com 27

Pro Aqua, Inc. 416-861-0237 www.proaquasales.com 33

Price-Schonstrom Inc. 519-881-0262 psicanada.com 38

RV Anderson Associates Limited 416-497-8600 www.rvanderson.com/ sustainability

58

Sanitherm Engineering Limited 604-986-9168 www.sanitherm.com 24

SEW Eurodrive Company of Canada Ltd.

905-791-1553 www.sew-eurodrive.ca 80

Sheridan Electric Services Ltd. 905-625-0265 www.sheridanelectric.ca 24

Simpson Environmental Corporation

905-332-7669 www.simpsonenvironmental.com 93

Smith & Loveless Inc. 905-528-3807 www.smithandloveless.com 44

Summa Engineering Limited 905-678-3388 www.summaeng.com 82

SYNTEC Process Equipment Ltd. 905-951-8000 www.syntecpe.com 53

Terratec Environmental Ltd. 800-846-2097 www.amwater.com 18

TETRA TECH 905-369-3000 www.tetratech.com 69

Trojan Technologies 888-220-6118 www.trojanuv.com 17

Unisorb Canada Ltd. 416-503-7639 www.env-inc.ca 6

Vector Process Equipment Inc. 416-527-4396 www.vectorprocess.com 63

VL Motion Systems Inc. 905 842-0244 www.mastergear.ca 38

Waterloo Biofilter Systems Inc. 519-856-0757 www.waterloo-biofilter.com 18

Wilo Emu 866-WILO-CDN www.wilo-canada.com 9

XCG Consultants Ltd. 905-829-8880 www.xcg.com 11

Xerxes Corporation 780-466-6648 www.zcl.com 42

Yeomans Chicago Corporation 800-921-7867 www.yccpump.com 49

ABS Pumps Corp. 905-670-4677 www.abspumps.com 2

ACG Technology 905-856-1414 www.acgtechnology.com 95

AECOM 604-689-3431 www.aecom.com 41

American Process Group 866-960-1480 www.amprocessgroup.com 24

AQUA Treatment Technologies Inc.

905-563-3778 www.aqua-tt.com 44

Associated Engineering 416-622-9502 www.ae.ca 70

Avensys Solutions 888-965-4700 www.avensys.com 33

Biorem Technologies 800-353-2087 www.biorem.biz 85

Bishop Water Technologies Inc. 613-628-5266 www.bishopaquatic.com 35

Black & Veatch 905-747-8506 www.bv.com 65

C & M Environmental Technologies Inc.

800-570-8779 www.cmeti.com 7

C.C. Tatham & Associates Ltd. 705-444-2565 www.cctatham.com 77

Cancoppas Limited 800-595-0514 www.cancoppas.com 55

Caduceon Environmental Laboratories

613-544-2001 www.caduceonlabs.com 33

CARLO GAVAZZI 888-575-2275 www.gavazzionline.com 87

CEDA Environmental Fluid Solutions

519-337-7104 www.cedagroup.com 70

Chemline Plastics Ltd. 905-889-7890 www.chemline.com 80

ClearTech 800-387-7503 www.cleartech.ca 18, 28, 48, 49

Degremont Technologies 905-627-9233 www.degremont-technologies.com

23

DELCAN Water 905-943-0500 www.delcan.net 15

Dwyer Instruments, Inc. 800-872-9141 www.dwyer-inst.com 4

ENV Treatment Systems Inc. 416-503-7639 www.env-inc.ca 79

Eramosa Engineering Inc. 519-763-7774 www.eramosa.com 18

GENIVAR Ontario Inc. 905-475-7270 www.genivar.com 28

Greatario Engineered Storage Systems

519-496-8169 www.greatario.com 60

Grundfos 800-921-7867 www.Grundfos.com 47

Hach 800-665-7635 www.hach.com/canada 43

Halliday Products 416-503-7639 www.hallidayproducts.com 38

Harnois Industries 450-756-1041 www.harnois.com 24

Hayward Gordon Ltd. 905-693-8595 www.haywardgordon.com 37

H2Flow Equipment Inc. 905-660-9775 www.h2flow.com 28

Hollen Controls Limited 519-766-1152 www.hollencontrols.ca 93

Hydro-Logic Environmental 905-777-9494 www.hydrologic.ca 93

Insyght Systems 905-592-1258 www.insyghtsystems.com 77

Intersteam Technologies 905-526-1453 www.intersteam.com 44

ITT Water & Wastewater Canada 514-695-0100 www.ittwww.ca 13

94 Spring 2011INFlueNTS Click HERE to return to Table of contents

For additional information, or to enquire about job opportunities, call us at 1-800-667-OCWA or look us up on the internet at www.ocwa.com.

TRUSTTRUSTMunicipalities across Ontario trust the Ontario CleanWater Agency (OCWA) to operate their water andwastewater facilities — efficiently and effectively.

That’s because we take our commitment to cleanwater, community health, and the environment, just as seriously as they do.

If your community is challenged by water or wastewater issues … think OCWA.

Think trusted partner.

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