FlexTech Study: Town of Ulster Wastewater Treatment Plant

New York State Energy Research and Development

Authority

FLEXTECH STUDY Town of Ulster Wastewater Treatment Plant

October 2019

FLEXTECH STUDY: TOWN OF ULSTER WASTEWATER TREATMENT PLANT

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FLEXTECH STUDY

TOWN OF ULSTER

WASTEWATER

TREATMENT PLANT

Prepared for:

James Quigley

Town Supervisor

Town of Ulster WWTP

1101 Dogwood Street

Kingston, NY 12401

Prepared by:

Arcadis of New York, Inc.

855 Route 146

Suite 210

Clifton Park

New York 12065

Tel 518 250 7300

Fax 518 371 2757

Our Ref.:

02255220.0000

Date:

October 7, 2019

This document is intended only for the use of

the individual or entity for which it was

prepared and may contain information that is

privileged, confidential and exempt from

disclosure under applicable law. Any

dissemination, distribution or copying of this

document is strictly prohibited.

Daniel J. Loewenstein, PE

Senior Vice President


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CONTENTS

Acronyms and Abbreviations ........................................................................................................................ iii

Executive Summary ................................................................................................................................. ES-1

1 Introduction ............................................................................................................................................. 1

2 Facility Description .................................................................................................................................. 1

2.1 Equipment Description .................................................................................................................... 1

2.2 Utilities ............................................................................................................................................ 2

2.2.1 Electricity Use ...................................................................................................................... 2

2.2.2 Propane Use ........................................................................................................................ 2

2.3 Energy Use Breakdown .................................................................................................................. 3

3 Energy Conservation Measures .............................................................................................................. 3

3.1 ECM 1: Replace Influent Pumps ..................................................................................................... 3

3.2 ECM 2: Compare Grit Removal Systems ....................................................................................... 4

3.3 ECM 3: Compare UV Disinfection Systems ................................................................................... 5

3.4 ECM 4: Replace Anaerobic Digester Mixing System ..................................................................... 6

3.5 ECM 5: Digester Heating System ................................................................................................... 7

4 Screening Evaluation – Non-Energy Task .............................................................................................. 9

5 Anaerobic Digesters Evaluation – Non-Energy Tasks .......................................................................... 10

5.1 Sludge Thickening ........................................................................................................................ 11

5.2 CHP System ................................................................................................................................. 11

5.3 Digester Cover Replacement ........................................................................................................ 12

5.4 Haul Un-Stabilized Sludge ............................................................................................................ 12

6 Recommendations ................................................................................................................................ 14

TABLES

Table ES1 - Summary of ECM Recommendations, Costs and Savings…………………………………..ES-2

Table ES1 - Summary of ECM Recommendations, Costs and Savings ....................................................... 2

Table 1 - WWTP Power Usage and Cost Summary ..................................................................................... 2

Table 2 - Pumping Energy Savings Estimates .............................................................................................. 4

Table 3 - Grit Removal Energy Savings Estimates ....................................................................................... 4


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Table 4 - UV Disinfection Energy Savings Estimates ................................................................................... 5

Table 5 - Anaerobic Digester Mixing Energy Savings Estimates .................................................................. 7

Table 6 – Anaerobic Digester Heating System Energy Savings Estimates .................................................. 8

Table 7 - Influent Screening Operations and Budget Estimates ................................................................. 10

Table 8 – Anaerobic Digester Heating System Energy Savings Estimates ................................................ 11

Table 9 - Anaerobic Digester Tank Cover Replacement Budget Estimates ............................................... 12

Table 10 - Sludge Handling Costs Analysis ................................................................................................ 14

FIGURES

Figure 1 - Ulster WWTP Overview

Figure 2 - Electricity Usage by Process Type

Figure 3 - Propane Usage by Process Type

Figure 4 - All Energy Source Usage by Process Type

Figure 5 - Influent Pumps Design Curve and Field-Tested Curves

APPENDICES

Appendix A – Engineer’s Opinion of Probable Costs

Appendix B – Manufacturers Cut-Sheets

Appendix C – Historical Energy Costs

Appendix D - Calculations


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ACRONYMS AND ABBREVIATIONS

ECM Energy Conservation Measure

MGD Million Gallons per Day

RBC Rotating Biological Contactors

WWTP Wastewater Treatment Plant

NYS DEC New York State Department of Environmental Conservation

SPDES State Pollution Discharge Elimination System

CHP Combined Heat and Power

UV Ultraviolet

UVT Ultraviolet Transmittance

UCRRA Ulster County Resource Recovery Agency

CHG&E Central Hudson Gas & Electric

SBC System Benefit Charge

GPM Gallons per Minute

SCF Standard Cubic Feet

FlexTech Flexible Technical Energy Assessment

kWh Kilowatt Hours

HP Horsepower

ft3/lb-VSR cubic feet of gas per pound of Volatile Solids Reduced

SRT Solids Retention Time

VFD Variable Frequency Drive

NG Natural Gas

WSEL Water Surface Elevation

thm Terms

MMBTU Million British Thermal Units


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EXECUTIVE SUMMARY

The Town of Ulster owns and operates a wastewater treatment plant (WWTP) that discharges to the

Esopus Creek. The WWTP last underwent upgrades in the late 1990s where many of the liquid stream

processes were replaced, with the exception of influent screening. Much of the equipment at the WWTP

is between 20 and 50 years old.

Arcadis of New York, Inc. (Arcadis), in conjunction with Brinnier & Larios, P.C. (B&L) assessed the energy

consumption, operability, and the present over-all WWTP process at the Ulster facility. A Flexible

Technical (FlexTech) energy assessment was completed on existing and proposed high energy demand

equipment, including the influent pumps, the addition of wet-stream grit removal, UV disinfection, and

anaerobic digester mixing and heating systems. The goal of the study was to identify energy savings

opportunities associated with replacing aging units at the facility.

Under Energy Conservation Measure (ECM) 1, the influent pumps were field tested and determined to be

under-performing their design curves. Pumps can be replaced with new proposed pumps, which would

result in a simple payback equal to the expected life. The proposed pumps would have the capacity to

pump the peak plant flow, in addition to providing energy savings. Grit removal systems were compared

under ECM 2 for energy efficiency and feasibility of incorporation into the treatment process. Compared

to each other, since there isn’t a current grit removal system, the vortex type has a payback of 4.5 years

and is recommended over the aerated type. Under ECM 3, the existing UV disinfection system energy

use was calculated and compared with estimated energy use to operate open-channel and enclosed

systems. The existing UV disinfection system’s energy use efficiency under performs all the UV

disinfection systems analyzed for feasibility. It is estimated that a replacement of the UV system with an

enclosed system will result in the smallest total project cost but has an estimated pay-back of 118 years.

In addition to a decrease in energy consumption, the proposed system will improve hydraulics, reduce the

number of UV lamps used per year and reduce operational labor with automatic wiping system to keep

the lamps clean. ECM 4 includes a review of the digester mixing system, which is currently a pumped

mixing setup. The recommended replacement with lower horsepower motors and VFD equipment will

provide the highest energy savings and a 12-year payback. ECM 5 reviewed expected energy savings of

upgrading the existing propane boiler with a new dual-fuel or mixed fuel boiler which can fire natural gas

or digester gas. The recommended equipment will provide a payback of 34 years. Improvements will

provide a more stable operation of the digestion process.

Additional technical reviews were performed on the feasibility of incorporating influent screening

equipment, and improvements to the anaerobic digester processes. The digester heating system,

digester tank covers, and sludge thickening systems were reviewed for design adjustments and

upgrades. The digesters are currently operating outside of design conditions. The digester tank

temperature is regularly dipping below appropriate operating temperatures for mesophilic anaerobic

digestion. The digesters are operating at volumetric capacity, evident in the calculated solids retention

time (SRT) in the primary digester. Unit processes and associated equipment was reviewed to improve

these operational deficiencies. Installation of a combined heat and power (CHP) unit was reviewed for

feasibility to aid in the digester heating process and electricity production. Upgrades to the digester

heating system and incorporation of sludge thickening prior to digestion will improve the operational

parameters of the digesters.


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Table ES1 - Summary of ECM Recommendations, Costs and Savings

Measure

Description Status

Fuel

Type

Saved

Electric

Demand

Savings

(kW)

Electric

Supply

Saved

(kWh)

Fuel

Saved

(mmBTU)

Percent of

Savings to

Total Fuel

Consumed

Annual

Dollars

Saved*

($)

Estimated

Budget

($)

Simple

Payback

(Years)

Emissions

Reduction

(lbs CO2e)

EMC 1: 20-HP

Flygt pumps R Elec 3 84,600 N/A 53% $8,500 $191,400 23 25

ECM 2: Vortex

Grit Removal R Elec 1.5 13,100 N/A 62% $1,300 $379,000 4.5 3.9

ECM 2: Aerated

Grit Removal NR Elec N/A N/A N/A N/A N/A $373,000 N/A N/A

ECM 3: Wedeco

Enclosed UV

Disinfection

R Elec 6.5 30,900 N/A 64% $3,100 $364,000 118 9.1

ECM 3: Suez

Open-Channel

UV Disinfection

NR Elec 5 19,300 N/A 40% $1,900 $365,600 189 5.7

ECM 3: Trojan

Open-Channel

UV Disinfection

NR Elec 1 13,500 N/A 28% $1,350 $803,600 595 4.0

ECM 3: Wedeco

Open-Channel

UV Disinfection

NR Elec 8 34,400 N/A 71% $3,400 $247,100 72 10

ECM 4: Pumped

Digester Mixing R Elec 6 40,500 N/A 62% $4,100 $49,050 12 12

ECM 4: Draft

Tube Digester

Mixing

NR Elec 5 32,700 N/A 50% $3,200 $135,000 41 9.6

ECM 4: Linear

Motion Digester

Mixing

NR Elec 2.5 16,300 N/A 25% $1,600 $282,000 172 4.8

ECM 5: Digester

Heating System

(Dual-Fuel)

NR NGas N/A N/A 264 5.3% $2,200 $145,000 79 0.4

ECM 5: Digester

Heating System

(Mixed)

R NGas N/A N/A 763 16% $6,600 $222,000 34 1.2

Total

(Recommended

Only)

17 169,100 280 $23,600 $1,210,000 51 51

Notes: (1) R = Recommended, NR = Not Recommended * Energy cost estimates are based on total per kWh cost of $0.10


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1 INTRODUCTION

The Town of Ulster owns and operates a wastewater treatment plant (WWTP) that discharges to the

Esopus Creek under State Pollution Discharge Elimination System (SPDES) NY0021563 as administered

by the New York State Department of Environmental Conservation (NYS DEC). The WWTP was last

upgraded in the late 1990s where most of the liquid stream processes were replaced, except for influent

screens. Much of the equipment at the WWTP is more than 20 years old.

The objective of this FlexTech study is to complete energy evaluations at the WWTP to determine the

technical and economic feasibility of reducing the energy usage through energy efficiency and

conservation measures. In addition, Arcadis evaluated the feasibility of improving the digestion process,

employing combined heat and power (CHP), and replacing the influent solids grinder with screens which

are not included as part of the FlexTech funding but are included in the report (refer to Sections 4 and 5).

2 FACILITY DESCRIPTION

The Ulster WWTP was constructed in 1970 as a secondary treatment plant consisting of primary settling,

a single stage trickling filter, final clarification and chlorine disinfection. The 1998 upgrade replaced the

trickling filter process with rotating biological contactors (RBCs) and the chlorination process with

ultraviolet (UV) disinfection. Other improvements consisted of converting the primary clarifier to a final

clarifier, construction of an additional final clarifier, and converting the existing final clarifiers to primary

clarifiers. Figure 1 depicts an aerial representation of the WWTP.

The upgrade included an increase of the SPDES permitted flow to 1.6 million gallons per day (MGD).

During the period from January 2018 to December 2018, the average influent flow rate treated by the

WWTP was approximately 1.0 MGD. Consistent with 10-State Standards, a peaking factor of 3.0 was

applied to the design average daily flow to estimate the design peak hourly flow of 4.8 MGD.

The facility consists of open and covered tanks, covered RBCs, and five buildings: 1) Administration and

Control Building, 2) Blower and Emergency Generator Building, 3) UV Disinfection Building, 4) Sludge

Treatment and Garage, and 5) Digester Control Building.

2.1 Equipment Description

Raw wastewater enters the WWTP at the southwestern corner of the Administration Building into an

influent channel which is equipped with a Muffin Monster grinder; a secondary channel has a manual bar

rack. Wastewater then accumulates in a wet-well and is pumped to a splitter box by one or more (total of

three) 20-HP submersible dry-pit pumps. The pumps were replaced during the 1998 upgrade and recently

had new single vane impellers installed. There is a fourth, original vertical turbine pump, which is currently

not used. Typical daily operations require two pumps operating during day-time hours, and one pump

operating during night-time hours.

From the splitter box, wastewater flows by gravity to the primary clarifiers, primary effluent flows by gravity

to the aerated RBCs, secondary clarifiers, and into the UV Disinfection Building. The UV disinfection is

comprised of five pressurized UV reactors, three of which contain 48 lamps (large reactors), the



remaining two contain 37 lamps (small reactors). The UV disinfection system is required by the SPDES

permit to be operational during the recreational season, May 1st until October 31st. Typically two large

reactors and one small reactor are in operation, with a third large reactor coming online when Ultraviolet

Transmittance (UVT) readings indicate it is needed. Effluent is discharged to the Esopus Creek.

Primary sludge is pumped through a sludge degritter and is thickened in a gravity thickener, then pumped

into the primary anaerobic digester. Secondary sludge is pumped directly into the primary digester. The

two-phase mesophilic anaerobic digestion system consists of a primary tank, which is mixed and heated,

and a secondary tank, which is equipped with a floating cover to collect digester gas. Currently, the

digester gas is flared. The digested sludge is dewatered in a belt filter press before being hauled to the

Ulster County Resource Recovery Agency (UCRRA) facility in New Paltz.

2.2 Utilities

The electric utility is supplied by Direct Energy, with delivery service from Central Hudson Gas & Electric

(CHG&E). Propane gas is supplied by both Heritage and Bottini over the time period reported herein.

Annual utility costs for March 2018 through February 2019 were $114,300 for electricity and $25,700 for

propane gas. The Town of Ulster WWTP pays into the Systems Benefit Charge (SBC) through its

electricity bills.

Electrical and propane gas utility data from January 2017 through February 2019 were provided by the

WWTP and reviewed. The blended utility data for usage from the most recent available 12-month period,

March 2018 to February 2019, is presented in Table 1.

Table 1 - WWTP Power Usage and Cost Summary

Energy Type Usage Average

Blended Rate Total Costs

Electricity 1,125,300 kWh $0.10 $114,300

Propane Gas 19,600 gal $1.31 $25,700

2.2.1 Electricity Use

The Ulster WWTP’s total annual electrical consumption for March 2018 to February 2019 was 1,125,300

kWh, with a high of 111,680 kWh in May and a low of 70,720 kWh in January. A review of the electricity

bills for the same time period was performed to determine the average blended rate of electricity. The

delivery charges average $0.03/kWh, and the electricity supply averages $0.07/kWh with all fees and

taxes included. The blended rate is $0.10/kWh. A breakdown of the electrical energy use distribution of

processes at the Ulster WWTP is shown in Figure 2.

2.2.2 Propane Use

Propane gas usage from the period from March 2018 to February 2019 ranged from a high of 3,230

gallons in March 2018, to a low of 670 gallons in September 2018. The average monthly delivery was

1,640 gallons. An approximate distribution of propane gas use at the WWTP is shown in Figure 3.



2.3 Energy Use Breakdown

Using the electrical and propane gas usage described above, results of energy use breakdown

calculations are presented in Figure 4. The RBC blowers and digester heating systems use the most

energy of any individual end use item at the WWTP.

3 ENERGY CONSERVATION MEASURES

3.1 ECM 1: Replace Influent Pumps

The existing influent pumping operations are accomplished by three submersible dry-pit pumps. The

three duty pumps are Davis EMU (now Wilo), 20-HP pumps and were installed in the 1998 WWTP

upgrade. These pumps were recently retrofitted with single vane impellers. A fourth pump, a vertical

turbine, is not used as a duty pump; it is turned on periodically to confirm functionality. On April 2, 2019 a

pump test was performed on the three pumps used for operations (pump #1, pump #2, and pump #3).

Flow through the pumps was controlled with the outlet pump control valve; the variable frequency drive

(VFD) flow controls were deactivated during the test. Flow, outlet pressure, wet-well water surface

elevation (WSEL), and amperage were recorded during the test for a range of discharge pressures.

Figure 5 shows the measured pump curve against the design curve provided by Wilo for the new

impellers.

Through analysis of the typical pump operations, flow data provided by the facility operators, and the field

verified pump curves, the actual duty point was determined to be approximately 700 gallons per minute

(gpm) at 27 ft of head. The design point of pumps #1 and #2 appears to be 1,070 gpm, at 42.3 ft of head

based on the manufacturers pump curves. The pump test indicated that all three active pumps operate on

a similar curve. It was determined that the existing pump, motor, and impeller combination are running

significantly below the manufacturers pump curves.

The typical annual electric consumption of the influent pumping operations was determined using the field

observed pump curves. A typical diurnal hourly flow curve was used to represent the WWTP’s annual

average influent flow of 1.0 MGD. The pump test curves were then applied to the diurnal flow entering the

WWTP to determine the pumps operation (i.e. number of pumps running, VFD settings). The average

electrical consumption of the existing pumps is estimated to be 161,000 kWh annually.

New pumps were proposed based on the permitted design average daily flow for the WWTP, which is 1.6

MGD. The actual average daily flow into the plant from the data collected during 2017-2018 is 1.0 MGD.

Consistent with 10-State Standards for designing pump stations, a peak factor of 3.0 was applied to the

design average daily flow to estimate the design peak hourly flow of 4.8 MGD. The proposed pumps are

capable of pumping the design peak hourly flow with 3 pumps running and one pump in standby.

Proposed equipment presented later in this report affecting the system head curve were considered when

sizing the proposed pumps. The new pump design curves, provided by Flygt for the NT 3153 MT ~3 433

model, were applied to the influent flow data, estimating the average annual electricity usage of the

pumps to be 76,400 kWh.



Table 2 - Pumping Energy Savings Estimates

* Energy cost estimates are based on total per kWh cost of $0.10 ŧ Budget estimates are a simple estimate of equipment purchase and installation. Appurtenant work and equipment not included.

Engineer’s Opinion of Probable Cost can be found in Appendix A.

Replacement of the existing pumps with the proposed pumps will result in an energy savings of

approximately 85,000 kWh, or $8,500 per year, based on a cost of $0.10 per kWh. Applying these

savings to the cost of purchasing and installing the new pumps and VFD controls results in a simple pay-

back of 23 years. Typically, pumps can be expected to operate up to 25 years. The existing pumps have

been in operation for 21 years. Though the replacement pumps payback is near that of their supposed

useful life, the update is recommended due to the existing pumps operating off their design curves

making them unable to pump the design flow of 4.8 MGD.

3.2 ECM 2: Compare Grit Removal Systems

The Ulster WWTP is currently not equipped with a grit removal system in the headworks. Grit removal

improves the wastewater treatment process by removing larger inorganic materials, improving longevity of

equipment and reducing loadings on the anaerobic digester. A grit removal system would be ideally

located upstream of the influent pumps and downstream of the grinder or a bar screen, however, due to

site constraints a system can be placed immediately upstream of the existing Splitter Box #1, resulting in

grit removal occurring prior to the flow reaching the primary clarifier.

Two grit removal system types were evaluated: 1) vortex grit removal system, and 2) aerated grit removal

system. Since this is a new installation, the incremental costs and savings of the proposed options were

compared.

Table 3 below outlines the equipment costs, energy consumption estimates, and simple pay-back

estimates for each design option.

Table 3 - Grit Removal Energy Savings Estimates

Grit Removal

System

Equipment

Power Rating

(hp)

Annual Energy

Consumption

(kWh)

Annual

Energy

Costs*

($)

Estimated

Budget ŧ

($)

Simple

Payback+

(years)

Vortex Type 1 6,540 $650 $379,000 4.5

Aerated Type 3 19,600 $1,960 $373,000 N/A

* Energy cost estimates are based on total per kWh cost of $0.10

Pumps

Annual Energy

Consumption

(kWh)

Annual

Energy

Costs*

Estimated

Budget ŧ

Annual Energy

Savings

Simple

Payback

(years)

Existing 161,000 $16,100 N/A N/A N/A

Proposed 76,400 $7,640 $191,400 $8,500 23



ŧ Budget estimates are a simple estimate of equipment purchase, installation, and concrete tank construction. Appurtenant work and

equipment not included. Engineer’s Opinion of Probable Cost can be found in Appendix A. +As compared to the cost of operating the Aerated Type grit system

A vortex grit system would result in the lowest annual energy costs. The estimated budget is higher than

that of the aerated grit system. The estimated 10-year cost (capital and operational) of the grit systems

are $385,500 for the vortex type, and $392,600 for the aerated type.

3.3 ECM 3: Compare UV Disinfection Systems

The WWTP currently uses an enclosed UV disinfection system designed by UV Water Purification, Inc.

which replaced a chlorine disinfection system in 1998.

The system is comprised of five UV reactors, which are a combination of large units with 48 lamps, and

small units with 37 lamps. The lamps are low-pressure lamps emitting UV light in the 254-nanometer

wavelength. Each lamp uses 65 watts of electricity and the system does not have any turn-down

capabilities. The operators have indicated that there is a distinct difference in the headloss of the large

and small units where more flow goes to the smaller units and less flow goes to the larger units.

The electrical usage of the existing UV disinfection system was estimated based on interviews with plant

operators and the SPDES permit requirements. The permit requires disinfection between May 1st and

October 31st. The operators turn on two large and one small unit from May 1st until the middle of June, at

which time an additional large unit is added to the treatment process until the end of October when all

units are powered off. Considering the operating procedures, number of lamps in operation, and lamp

wattage the total annual electrical usage of the existing UV system was estimated to be 48,500 kWh.

Four alternative UV Disinfection systems were reviewed, one enclosed reactor and three open channel

systems: 1) Wedeco’s LBX enclosed system, 2) Suez’s Aquaray 40 HO Vertical Lamp open-channel

system, 3) Trojan’s UV 3000 Plus open channel system, and 4) Wedeco’s TAK open channel system.

The evaluated enclosed reactor would be placed in the same building as the existing UV disinfection

system with a different configuration of one duty and one standby unit. UV system manufacturers have

made significant progress on technology in open channel systems, which are more commonly installed at

WWTPs. The open channel system would be placed downstream of the existing UV Building in a new

channel cut into the effluent pipe to the northwest of the UV Building. The open channel system would

need to be protected from sunlight by a canopy cover. Due to the large amount of site-work and new

infrastructure needed to establish an open-channel UV disinfection system the total installed cost tends to

be higher than an enclosed solution (see Appendix A for engineer’s opinion of probable cost). Table 4

below outlines the equipment costs, energy consumption estimates, and simple payback estimates for

each design option.

Table 4 - UV Disinfection Energy Savings Estimates

UV Disinfection System

Minimum

UV dose

(mJ/cm2)

Annual

Energy

Consumpti

on

(kWh)

Annual

Energy

Savings* ($)

Estimated

Budget ŧ

($)

Simple

Payback

(years)



Existing – Enclosed System 30 48,500 N/A N/A N/A

Wedeco – Enclosed System 60 17,600 $3,090 $364,000 118

Suez – Open Channel 30 29,200 $1,930 $365,600 189

Trojan – Open Channel 80 35,000 $1,350 $803,600 595

Wedeco – Open Channel 60 14,100 $3,440 $247,100 72

* Energy cost estimates are based on total per kWh cost of $0.10 ŧ Budget estimates are a simple estimate of equipment purchase, installation, and concrete tank construction. Appurtenant work and

equipment not included. Engineer’s Opinion of Probable Cost can be found in Appendix A.

Wedeco’s open channel unit would result in the highest annual energy savings, 34,400 kWh or $3,440

each year at the current electricity rates. Wedeco’s enclosed system provides comparable energy savings

to the open channel solution and will result in smaller construction costs due to the existing UV

disinfection building. The proposed enclosed system is equipped with automatic wipers to reduce labor

associated with maintaining the system. Estimated budget costs shown in Table 4 do not include

construction of a canopy over the new open UV channel, yard piping, electrical work, and instrumentation

and controls. When these costs are considered, the enclosed system becomes the most economical

option (Appendix A).

The open channel designs vary between the different manufacturers based on number of modules,

number of and power rating of UV lamps, and turn-down capabilities. Trojan’s proposal prescribes a UV

design dose of 80 mJ/cm2. Trojan cites the UV Disinfection system being downstream of RBCs which

may have periodic slough off of biological material as to their reasoning for the high dosage and

references Ultraviolet Disinfection Guidelines for Drinking Water and Water Reuse, published by the

National Water Research Institute. A pilot study of the Ulster effluent performed by Trojan in 2017 shows

a dose of 60 mJ/ cm2 provides adequate disinfection. The Wedeco enclosed system provides a minimum

dose of 60 mJ/cm2, which exceeds the minimum recommendations of 30 mJ/cm2 by 10-State Standards.

The enclosed system proposed by Wedeco is recommended for upgrade to the UV Disinfection system.

This upgrade will improve hydraulics, decrease energy consumption, and decrease the number of UV

lamps used per year by the disinfection process.

Installation of the UV system in an open channel downstream of the existing UV building could provide

the additional advantage of allowing the use of the building for future process equipment. The UV

disinfection building was reviewed to be used to house sand filters for phosphorus removal in preparation

for possible future effluent limits of phosphorus. Preliminary calculations indicate the footprint of the

building would need to be expanded up to 2,000 sq. ft. to accommodate a rapid sand filter capable of

treating the peak hourly flow rate of 4.8 MGD. A UV channel could be built accounting for headloss from

the sand filter in the hydraulic profile. The added benefit of the UV building as a slow sand filter does not

appear to offset the cost increase of placing UV disinfection in a new open-channel configuration.

3.4 ECM 4: Replace Anaerobic Digester Mixing System

The anaerobic digestion process is driven by mixing and temperature control. The primary digester is

mixed by two 10 HP mixing pumps (one duty and one standby) that pump sludge out of the primary



digester and back into the primary digester through a nozzle. To maintain proper anaerobic digestion the

digester must be mixed continuously, resulting in a large and continuous power draw for the process.

Three alternative digester mixing systems were reviewed: 1) pumped mixing system, 2) linear motion

mixing system, and 3) vertical draft tube mixing system. Any of the proposed systems would require the

primary digester to be taken offline and completely emptied during retrofit. The secondary digester would

be utilized as the primary digester during this time. Due to the potential need for future tank emptying

procedures, the existing pumped mixing system can be maintained operational in the secondary digester

tank for purposes of back-up operations.

Table 5 - Anaerobic Digester Mixing Energy Savings Estimates

Digester Mixing

System

Equipment

Power Rating

(hp)

Annual

Energy

Consumption

(kWh)

Annual

Energy

Savings *($)

Estimated

Budget ŧ

($)

Simple

Payback

(years)

Existing - Pumped

Mixing System 10 65,350 N/A N/A N/A

Pumped Mixing

System 3.8 24,800 $4,050 $49,050 12

Linear Motion Mixing

System 7.5 49,000 $1,600 $282,000 172

Vertical Draft Tube

Mixing System 5 32,700 $3,300 $135,000 41



Replacement of the existing system with an upgraded pumping system of higher efficiency pumps with

VFD capabilities would result in the highest annual energy savings, 40,500 kWh or $4,050 each year at

the current electricity rates. With a budget estimate well below that of the other alternatives, the simple

payback period is the shortest of all the alternatives at 12 years.

3.5 ECM 5: Digester Heating System

The temperature inside the Primary Digester is maintained by a Weil-McLain propane boiler and Dorr-

Oliver spiral heat exchanger installed during the original 1970 design of the WWTP. The target sludge

temperature is 98oF, however the average temperature during 2017 and 2018 was 96.8 oF, with

temperatures dipping as low as 94.2 oF during winter months. A stable operating temperature is important

to maintain bacterial functions. Generally, temperature changes greater than 2 oF per day can affect

process performance.

Sludge is withdrawn from the primary digester with a 5 HP pump at 75 gpm and pumps through the heat

exchanger, where hot water from the propane boiler is run at 40 gpm. The heat exchanger has a



specified capacity of 200,000 BTU/hr. Operations staff indicated the heat exchanger had historically been

able to maintain the digester at the correct temperature up until the last two years.

The existing propane boiler is nearing the end of its useful life and is no longer manufactured by Weil-

McLain. The dual-fuel capabilities of the existing boiler are not operational due to maintenance difficulties.

An equivalent sized dual-fuel boiler can be installed which can be fired by either digester gas or natural

gas (which is currently being installed at the WWTP). This system will allow the boiler to utilize digester

gas when the heating demand is less in the summer and natural gas in the winter when heating demand

is greater. The relatively low gas production rates of the digester is insufficient to supply the higher

heating demand of the digester and facility buildings in the colder winter months. The digester gas is

estimated to reduce the natural gas demand for heating by 264,000 standard cubic feet (scf), which is

approximately $2,200 based on a per thousand scf cost of $8.29. The annual estimated cost to operate

the dual-fuel boiler is $12,000.

A mixed fuel boiler is estimated to cost $222,000 to purchase and install but would utilize the digester gas

year-round as the boiler has the ability to blend the natural gas and digester gas. The cost of natural gas

offset of utilizing the boiler gas all-year round is only enough to decrease the simple payback to 34 years

which is longer than the life of the equipment.

A replacement heat exchanger is estimated to cost approximately $79,000 for purchase and installation,

the Engineer’s Opinion of Probable Cost can be found in Appendix A. A review of the energy costs,

energy savings, and simple payback of the dual-fuel boiler are outlined in Table 6.

Table 6 – Anaerobic Digester Heating System Energy Savings Estimates

Digester Heating

System

Annual

Natural Gas

Savings

(thousand scf)

Annual

Natural Gas

Needs

(thousand scf)

Annual

Energy

Savings*

($)

Budget

Estimate ŧ

($)

Simple

Payback

(years)

Dual-Fuel Boiler System

with Auxiliaries 264 1,700 $2,200 $145,000 79

Mixed Fuel Boiler System 793 1,700 $6,600 $222,000 34

* Electricity cost estimates are based on total per kWh cost of $0.10. Natural Gas cost based on $8.29/thousand scf. ŧ Budget estimates are a simple estimate of equipment purchase and installation. Engineer’s Opinion of Probable Cost can be found

in Appendix A.

The replacement of the existing boiler with either the dual-fuel boiler or mixed fuel boiler and replacement

heat exchanger will provide improved heating capabilities of the primary anaerobic digester. The simple

payback period exceeds the expected life of the equipment, however due to the existing equipment being

in disrepair and no longer operating to manufacturer specifications, the upgrade to new equipment is

recommended. Boiler choice will largely depend on the broader sludge processing and handling

upgrades, if the digester process is abandoned in preference for shipment to a regional biosolids

processing facility, a boiler with digester gas utilization capabilities will be unnecessary.



4 SCREENING EVALUATION – NON-ENERGY TASK

The Ulster WWTP does not have influent screening as part of the wastewater treatment process.

Currently, large solids are processed by a Muffin Monster grinder in the influent building before the flow

reaches the influent pumps. Even with the grinder, operators have reported many occurrences of rags

and flushable wipes wrapping around the pump impellers which reduces pump capacity and creates

maintenance activities for staff. Installing a mechanical screening mechanism upstream of the pumps

would improve the daily and long-term operational efficiency of the pumps, as well as likely extend their

useful life. Rags also plug the RBC media and accumulate in the digesters.

The influent channel passes through the headworks building 23.5 ft below grade. The influent channel is

two feet wide and splits into primary and bypass channels which are each one foot 10-inches wide. The

outer edges of each channel are flush with the building walls and are separated by a four foot 4-inch wide

concrete “island” floor. The available space in the influent building is very constrained. Most of the

existing wall space is occupied by stairwells, HVAC ducts, piping, and electrical equipment and conduits.

Likely, any screening solution will require 1) adjustment to the existing equipment in the building, 2)

mounting in a vertical or near vertical orientation, and 3) taking the channel orientation against the

building wall into consideration.

Typical screening operations capture rags and debris on the upstream side of an angled screen, a

rotating rake clears the screen by lifting the captured solids to grade and depositing the screened

materials into a container or washer/compactor. Due to the space constraints of the building, this

traditional process will be difficult to achieve. Several alternative design options were reviewed for

feasibility. The options include: 1) installation of a mechanically raked bar-screen in a new structure

upstream of the Administration Building, 2) installation of a vertically mounted micro-strainer with

washer/compactor, and 3) a mechanical bar screen with a washer/compactor placed on the headworks

floor that will lift the screenings to grade after compaction.

Arcadis reviewed several screening systems to assess the feasibility of each option. Option #1, installing

the mechanically raked screen in a new structure upstream of the existing Administration building, will

require the construction of a 400 sq. ft. addition onto the south-west side of the Administration Building

where the existing raw sewage comes into the Administration Building. This building addition is estimated

to cost $420,000. The building addition would facilitate the installation of an angled mechanically raked

bar screen mounted away from the building walls, eliminating the design concerns relating to the influent

channel and building orientations stated previously.

Option #2, installing a micro-strainer with built-in compaction, will have a high solids removal rate, and

can be mounted in the existing channel. Typical micro-strainers with compactors are installed at an

inclined angle, but to accommodate the constraints of the building, a micro-strainer with a vertical

configuration is proposed. Compacted screenings will be conveyed to grade via a compaction tube. This

option will likely require relocation of existing HVAC ducts within the building. Due to the channel wall

being flush with the building wall, the slide rail, a mechanism used to lift the micro-strainer out of the

channel for routine maintenance, cannot be installed. The maintenance on the submerged mechanicals

are recommended to be performed every 6 to 12 months and will require the installation of a structural

beam and hoisting system to raise the micro-strainer out of the channel. The micro-strainer is expected to

have approximately 5-feet of space above it available for installation of a hoist and beam assembly.



Option #3, installing a mechanically raked bar screen combined with a washer/compactor which conveys

the compacted screenings to grade, was also considered. The compacted conveyance will be a vertical

distance of approximately 19 ft from the building floor up to grade. This is a relatively long distance to

convey compacted screenings. The design of the new washer/compactor technology is specifically

created to facilitate a long vertical conveyance of the screenings. The mechanically raked bar screen

made by Duperon is unique in that it does not contain any mechanicals that are mounted in the channel

and thus does not need to be lifted out of the channel for maintenance. This allows it to be mounted in the

channel against the building wall without concern for lift equipment.

Table 7 below outlines expected costs of equipment for each screening option.

Table 7 - Influent Screening Operations and Budget Estimates

Screening System

(Option #)

Annual Energy

Costs*

($)

Estimated

Budget ŧ

($)

20-Year Total

Cost

($)

Conventional Screening,

Washer/Compactor (#1) $5,200 $450,000 $555,000

Micro-strainer (#2) $2,000 $189,000 $228,000

Screening and

Washer/Compactor (#3) $1,300 $260,000 $286,000



5 ANAEROBIC DIGESTERS EVALUATION – NON-ENERGY

TASKS

The primary anaerobic digester receives 7,000 gallons per day of thickened primary sludge and

unthickened secondary sludge. The sludge enters the primary digester with a solids content of

approximately 2.4%. The optimum temperature for mesophilic anaerobic digestion is 98oF.

Based on volatile solids content of thickened primary sludge, secondary sludge, and digested sludge, the

volatile solids reduction is 53%, which is slightly lower than the desired 55%. Approximately 6,600 cubic

feet of digester gas are generated per day. Anaerobic digester gas generated in the digestion system is

flared. Previously, the existing boiler could be fueled with digester gas, but due to maintenance issues,

that is no longer feasible. The digesters produce approximately 10 cubic feet of gas per pound of volatile

solids reduced (ft3/lbVSR). This is less than the typical 12 to 18 ft3/lbVSR as stated in Wastewater

Engineering Treatment and Reuse (Metcalf & Eddy, 2012).

The solids retention time (SRT) of the primary anaerobic digester was calculated to be 5.3 days based on

recorded sludge flow rates and digester tank utilization. Metcalf & Eddy recommends a minimum design

SRT for an anaerobic digester operating at 98 oF of 10 days, therefore the digester is operating below

recommended parameters and appears to have no additional capacity to accept sludge.



5.1 Sludge Thickening

Currently, primary sludge is pumped to the gravity thickener which increases the solids content to

approximately 2.7%. Sludge from the secondary clarifiers is not thickened before being pumped to the

digesters at a solids content of approximately 2.1%. One method to increase the SRT of the digesters is

to thicken the sludge to a higher solids content, which in turn increases the capacity of the digesters. A

gravity belt thickener could be installed prior to the anaerobic digesters to thicken both the primary and

secondary sludge. A gravity belt thickener could be installed in the garage where the existing sludge

degritter is located. If grit removal is added to the liquid stream, the sludge degritter can be removed.

A gravity belt thickener processing primary and secondary sludge, is capable of increasing the total solids

to between 5 and 7%. An increase to 5% solids increases the SRT to 10.6 days, 7% results in an SRT of

15 days. The combined primary and secondary can be mixed in the existing gravity thickener and

pumped to at a rate of approximately 30 gpm, which can be processed effectively by a 1-m gravity belt

thickener according to the sizing criterion outlined in the Design of Municipal Wastewater Treatment

Plants WEF manual No. 8. A 1-m gravity belt thickener has a budget estimate of $377,000 for equipment

purchase and installation. Thickening primary sludge may produce noxious odors and odor control should

be considered.

5.2 CHP System

A CHP unit was considered to utilize the digester gas generated by the anaerobic digestion process and

offset the reliance on natural gas to heat the digester and generate power.

The mixing and heating improvements outlined in this report are estimated to increase digester gas

production to at least 12 ft3/lbVSR. The increased digester gas volume could be used in a microturbine to

generate electricity and heat as a CHP system. The electrical efficiency of a small microturbine operating

on digester gas is 26%. At this efficiency, a power generation of 15 to 23 kW could be achieved at the

Ulster WWTP. The smallest microturbine available from Capstone is 30 kW. At this time, the smallest

digester gas treatment system is suited for a higher gas flow and would use a significant portion of the

generated power. One option is to blend natural gas with the digester gas to use in a larger 65 kW

microturbine, which has a higher electrical efficiency of 29%, and an integrated heat recovery module.

The 65 kW microturbine maximum operational capacity is 842,000 BTU/hr, the digesters are expected to

produce 200,000 BTU/hr. The difference between the supplied digester gas and maximum capacity is

subsidized with natural gas, which is an annual average volume of 5,000,000 scf per year. The annual

electricity generation of the microturbine is estimated at 149,000 kWh which is approximately 15% of the

current electricity utilization of the WWTP.

The heat recovery capability of the CHP unit is estimated at 0.24 MMBTU/hr. The digester heat

requirement is less than this production, at 0.18 MMBTU/hr, however the CHP unit would be installed in

addition to a replacement heat exchanger and replacement boiler which can operate on natural gas and

digester gas, the details of which are outlined in Section 3.5 of this report.

A review of the heat and power capabilities of the 65-kW unit and associated energy cost savings are

outlined in Table 8.

Table 8 – Anaerobic Digester Heating System Energy Savings Estimates



CHP

Annual

Electricity

Savings

(kWh)

Annual

Natural Gas

Needs

(1000 scf)

Baseline Energy

Costs*

($)

Annual NG

Costs to

Operate CHP*

($)

Budget

Estimate ŧ

($)

65 kW CHP 149,000 5,000 $37,400 $42,000 $780,000

* Electricity cost estimates are based on total per kWh cost of $0.10. Natural Gas cost based on $8.29/thousand scf. Propane cost

based on $1.31/gallon. ŧ Budget estimates are a simple estimate of equipment purchase and installation. Engineer’s Opinion of Probable Cost can be found

in Appendix A.

Due to the low gas production volumes of the anaerobic digester tank, natural gas would need to be

purchased and blended with the digester gas to effectively utilize the capabilities of the CHP unit, with a

small offset of electricity purchase. The CHP unit will cost more on an annual basis to operate than

purchasing the equivalent electricity and propane needs (baseline), eliminating any payback potential. It

is not recommended to install a CHP unit as part of the digester heating system, as the relatively low

digester gas production of the facility does not make it a feasible option for utilization of the digester gas.

5.3 Digester Cover Replacement

The primary digester currently has a fixed steel cover, the secondary digester is equipped with a floating

steel cover. Both covers were installed during the original facility construction in the 1970’s. Due to the

age of the covers, they likely need to be replaced. Utilization of digester gas presented in earlier sections

of this report requires the secondary digester cover to be a gas holding cover. Gas holding covers can be

constructed of steel or membrane. Steel covers are estimated to have a lifespan of 30 years, membrane

covers typically have a useful life of 15 years. Table 9 outlines estimated budgetary costs of installing

new digester covers.

Table 9 - Anaerobic Digester Tank Cover Replacement Budget Estimates

Digester Tank Digester Cover Type Budget

Estimate ŧ

Primary Digester Fixed Steel $180,000

Secondary Digester Floating Steel $210,000

Secondary Digester Gas Holding - Steel $220,000

Secondary Digester Gas Holding- Membrane $370,500 ŧ Budget estimates are a simple estimate of equipment purchase and installation. Engineer’s Opinion of Probable Cost can be found

in Appendix A.

5.4 Haul Un-Stabilized Sludge

Due to the high cost of sludge digestion updates and upgrades relative to the volume of sludge produced

at the WWTP, the option of sending undigested sludge to a regional biosolids facility in Albany was

evaluated. The identified facility is expected to be fully operational by 2023.



All recommended upgrades to the anaerobic digestion process outlined in Section 5 are expected to cost

at a minimum $2.12 million (Appendix A). The recommended anaerobic digestion upgrades include: 1)

addition of a gravity belt thickener, 2) replacement of the digester heating system (heat exchanger and

boiler), 3) replacement of the digester mixing system, and 4) replacement of the covers for the primary

and secondary digester tanks. The Ulster WWTP currently produces approximately 652 tons of digested

and dewatered sludge per year for disposal, this is expected to be relatively unaffected by the

recommended upgrades. The dewatering process relies on the addition of polymer to the digested

sludge, which comes at a cost of $10,000/year. The addition of a gravity belt thickener before the

anaerobic digesters will increase the polymer demand by 100%, increasing the annual polymer budget to

$20,000. The full upgraded anaerobic digester operations annual costs include: 1) $16,000 heating costs

for the purchase of natural gas, 2) $60,000 for sludge disposal fees at the New Paltz landfill, and 3)

$10,000 in trucking costs to the New Paltz landfill. The estimated annual operating costs of the upgraded

sludge thickening, digestion, dewatering, and disposal is $106,000.

The option of delivering undigested sludge to the Albany Regional Biosolids Facility would not be

available until 2023. In the interim, the Ulster WWTP would need to upgrade the anaerobic digestion

heating system to prevent failure and purchase natural gas for heating the digester for the two-year

period. Additionally, adjustments to the existing digestion equipment to convert into sludge handling and

holding for shipment would need to be performed when the digestion process is abandoned. The

upgrades to the anaerobic digestion heating equipment includes replacement of the heat exchanger and

boiler. To convert the digestion tanks to holding tanks an aerated mixing system and a replacement tank

cover will need to be installed. The estimated construction budget for these upgrades is $1,040,000

(Appendix A). By not digesting the sludge, the volume of sludge needing to be shipped will be greater

than that of the digestion condition, estimated at about 10,900 tons per year. The trucking distance is

greater to the Albany facility than the New Paltz landfill, which will increase the trucking costs. The Albany

Regional Biosolids Facility has provided an estimated disposal fee of $72 per thousand gallons.

The annual cost estimate of undigested sludge disposal is: 1) $18,000 for sludge disposal fees at the

Albany Regional Biosolids Facility, 2) $81,000 in trucking costs, 3) $10,000 in polymer use, and 4) $4,000

for electricity to run the holding tank mixing system. This option removes the need for heating fuel to be

used in maintaining digester tank temperature after 2023 but will need to be purchased at $16,000/year

until the biosolids facility is open. The estimated average annual operating costs of abandoning sludge

digestion process at the Ulster WWTP in favor of shipping undigested sludge to the Albany Regional

Biosolids Facility is $114,000.



Table 10 - Sludge Handling Costs Analysis

Sludge Handling Option Budget

Estimate +

Annual

Operating

Costs*

Simple Payback

(years)

Full digester upgrade w/

continued disposal at New Paltz

Landfill

$2,120,000 $106,000 132

“Stop-Gap” upgrade w/ disposal

at Albany Regional Biosolids

Facility

$1,040,000 $114,000 N/A

* Annual operating costs estimates are based on equipment energy demands, sludge disposal fees, trucking costs, polymer

purchase. Electricity costs per kWh is $0.10. Natural Gas cost based on $8.29/thousand scf. +Principal Investment is the “all-in” cost of the upgrades including: equipment purchase and installation, electrical work, concrete,

excavation, yard piping, I&C, engineering etc.

The Albany Regional Biosolids Facility disposal option has a slightly larger annual operating cost than the

full digestion process upgrade. Due to the large capital investment for the digestion process upgrade, the

simple payback for this operation in comparison to disposing undigested sludge at the biosolids facility is

132 years. There are likely operational and future facility demands which should be considered when

selecting the appropriate solution for the WWTP.

6 RECOMMENDATIONS

Arcadis provided an evaluation of Energy Conservation Measures and other non-energy measures that

could improve the energy efficiency and the overall efficiency of operations at the Ulster WWTP.

Under Energy Conservation Measure (ECM) 1, the influent pumps were field tested and determined to be

under-performing their design curves. The existing pumps should be replaced with the proposed pumps,

which would result in a payback equal to the expected life. The proposed pumps will have the capacity to

pump the peak plant flow, in addition to providing energy savings. Grit removal systems were compared

under ECM 2 for energy efficiency and feasibility of incorporation into the treatment process. Compared

to each other, since there isn’t a current grit removal system, the vortex type has a payback of 4.5 years

and is recommended over the aerated type. Under ECM 3, the existing UV disinfection system’s energy

use was calculated and compared with estimated energy use to operate open-channel and replacement

enclosed systems. The existing UV disinfection system’s energy use underperforms all the UV

disinfection systems analyzed for feasibility. It is estimated that a replacement enclosed system will result

in the smallest total project cost but has an estimated payback of 118 years. In addition to a decrease in

energy consumption, the proposed system will improve hydraulics and reduce the number of UV lamps

used per year. ECM 4 includes a review of the digester mixing system, which is currently a pumped

mixing setup. The recommended replacement with in-kind equipment will provide the highest energy

savings and a 12-year payback. ECM 5 reviewed expected energy savings of upgrading the existing

propane boiler with a new dual-fuel boiler which can fire natural gas or digester gas. The recommended

equipment, including a new heat exchanger, will provide a payback of 61 years. Improvements will

provide a more stable operation of the digestion process.



Additional technical reviews were performed on the feasibility of incorporating influent screening

equipment, and improvements to the anaerobic digester processes. To improve the overall plant process,

it is recommended that the facility install screening equipment upstream of the influent pump station. The

Micro-strainer (Options #2) is the screening option with the lowest capital costs reviewed in this study.

However, the frequent and involved maintenance requirements of the equipment makes the option

infeasible. The screening Option #3 is a larger capital investment but will require significantly less

maintenance and has a smaller expected annual energy cost than that of the Micro-strainer.

The digester heating system, digester tank covers, and sludge thickening systems were reviewed for

design improvements and upgrades. The digesters are currently operating outside of design conditions.

Recommended upgrades to the digester heating system including a replacement boiler and heat

exchanger and incorporation of sludge thickening prior to the digester tank will improve the operational

parameters of the digesters and bring them within the suggested operational parameter of the 10-State

Standards, bringing the additional benefit of increasing the digesters capacity to accept external sludge.

The digestion tank covers are near their end of life and should be replaced.

FIGURES

FIGURE

ULSTER WWTP OVERVIEW

1

RBC Units

Secondary Settling

Digester Control Building

Blower BuildingSludge

Thickening Tank

Sludge Degritter& Press Building

FIGURE

8/9/

2019

11:

56:2

2 AM

ELECTRICITY USAGE BY PROCESS TYPE

2

Headworks0.2%

Pumping12.1% Primary Treatment

0.4%

Secondary Treatment59.6%

Disinfection3.6%

Sludge Treatment10.6%

Buildings8.9%

Other4.4%

FIGURE

8/9/

2019

11:

56:2

2 AM

PROPANE USAGE BY PROCESS TYPE

3

Building Heating51%

Digester Heating49%

FIGURE

8/9/

2019

11:

56:2

2 AM

ALL ENERGY SOURCE USAGE BY PROCESS TYPE

4

Headworks0.1%

Pumping8.3%

Primary Treatment0.3%

Secondary Treatment40.7%

Disinfection2.5%

Sludge Treatment7.2%

Buildings6.1%

Other3.0%

Building Heating16.2%

Digester Heating15.6%

FIGURE

8/9/

2019

11:

56:2

2 AM

INFLUENT PUMPS DESIGN CURVE AND FIELD-TESTED CURVE

5

0

10

20

30

40

50

60

70

80

90

100

0 500 1000 1500 2000

Hea

d (ft

)

Flowrate (gpm)

Pump 1&2 - Design Curve

Pump 3 - Design Curve

Pump 1 - Test Data

Pump 2 - Test Data

Pump 3 - Test Data

System Curve - Max Head

System Curve - Min Head

APPENDIX A

Engineer’s Opinion of Probable Cost

DESCRIPTION QTY. UNIT TOTAL

Equipment

Pumps 4 EA $ 102,800

VFD & Controls 1 EA $ 88,600

Equipment + Installation SUBTOTAL $ 191,400

Construction

Electrical 1 EA $ 40,000

I&C 1 EA $ 22,000

$ 260,000

10% $ 26,000

25% $ 65,000

30% $ 78,000

$ 430,000

UNIT COST

Town of Ulster

FlexTech Study

Opinion of Probable Construction CostInfluent Pumping

OPINION OF PROBABLE CONSTRUCTION COST

$40,000.00

$22,000.00

SUBTOTAL

$25,700

$88,600

3. All items are rounded to the nearest $1,000. All subtotals rounded to nearest $10,000.

GENERAL REQUIREMENTS

CONSTRUCTION CONTINGENCY

TOTAL OPINION OF PROBABLE CONSTRUCTION COST

(POINT ESTIMATE)

The following assumptions and references were used to develop the opinion of probable

construction cost:1. Opinions of probable costs are based on a conceptual level of project design.

2. All unit costs are in 2019 dollars.

LEGAL, ADMINISTRATION, ENGINEERING

G:\PROJECT\02255220.0000\Cost Estimates\BOD - Opinion of Cost_Master.xlsx 1/12


Equipment

Vortex Grit System 1 EA $ 342,000

Construction

Excavation & Disposal 60 CY $ 5,000

Cast-in-Place Concrete 45 CY $ 32,000


Yard piping 1 LS $ 24,000

Electrical 1 LS $ 60,000

I&C 1 LS $ 35,000

$ 500,000

10% $ 50,000

25% $ 125,000

30% $ 150,000

$ 830,000

Town of Ulster

FlexTech Study

Opinion of Probable Construction Cost


UNIT COST

$342,000

Vortex Grit Removal

$80

$35,000

$695

$24,000

$60,000


SUBTOTAL


The following assumptions and references were used to develop the opinion of probable 1. Opinions of probable costs are based on a conceptual level of project design.2. All unit costs are in 2019 dollars.






Equipment

AeroDuctor 1 EA $ 284,400

Construction


Cast-in-Place Concrete 100 CY $ 69,500




I&C 1 LS $ 35,000

$ 500,000

10% $ 50,000

25% $ 125,000

30% $ 150,000

$ 830,000

UNIT COST

Town of Ulster

FlexTech Study

Opinion of Probable Construction CostAerated Grit Removal


$80

$695

$284,400

$24,000

$60,000

$35,000

SUBTOTAL





(POINT ESTIMATE)







Equipment

Enclosed UV Disinfection 1 LS $ 364,000


Construction

Demolition of Existing UV Units 5 EA $ 5,000


I&C 1 LS $ 54,600

$ 460,000

10% $ 46,000

25% $ 115,000

30% $ 138,000

$ 760,000

UNIT COST

Town of Ulster

FlexTech Study

Opinion of Probable Construction CostEnclosed UV Disinfection



$364,000

$1,000

$36,400

$54,600

SUBTOTAL





(POINT ESTIMATE)






Equipment

Wedeco Open Channel UV Disinfection 1 EA $ 168,000

Construction


Cast-in-Place Concrete 100.0 CY $ 69,500


Canopy Structure 1 EA $ 55,000



I&C 1 LS $ 40,000

$ 500,000

10% $ 50,000

25% $ 125,000

30% $ 150,000

$ 830,000








(POINT ESTIMATE)

$168,000

$80

$695

$55,000

$48,000

SUBTOTAL


$100,000

$40,000

UNIT COST

Town of Ulster

FlexTech Study

Opinion of Probable Construction CostOpen Channel UV Disinfection




Equipment

Screen 1 EA $ 273,400

Washer Compactor 1 EA $ 176,500


Construction

Building Addition 400 SF $ 400,000

Building Concrete 240 CY $ 19,680

HVAC 1 EA $ 30,000


I&C 1 EA $ 45,000

$ 1,020,000

10% $ 102,000

25% $ 255,000

30% $ 306,000

$ 1,690,000

UNIT COST

Town of Ulster

FlexTech Study

Opinion of Probable Construction CostScreening & New Building (Option #1)


SUBTOTAL

$273,400

$176,500

$1,000

$82

$30,000

$75,000

$45,000





(POINT ESTIMATE)







Equipment

Micro-strainer 1 EA $ 189,000


Construction

Structural Beam 1 LS $ 15,000

Hoist 1 EA $ 8,000

HVAC 1 LS $ 19,000


I&C 1 LS $ 16,000

Demolition of Existing Equipment 1 EA $ 7,000

$ 280,000

10% $ 30,000

25% $ 70,000

30% $ 84,000

$ 470,000

$15,000

$8,000

1. Opinions of probable costs are based on a conceptual level of project design.



$19,000

SUBTOTAL




(POINT ESTIMATE)


construction cost:

$19,000

$16,000

$7,000


$189,000

Town of Ulster

FlexTech Study

Opinion of Probable Construction CostMicro-strainer Screening (Option #2)


UNIT COST



Equipment

Screen & Washer/Compactor 1 EA $ 260,000


Construction

HVAC 1 EA $ 15,000


I&C 1 EA $ 26,000


$ 360,000

10% $ 36,000

25% $ 90,000

30% $ 108,000

$ 600,000

$26,000

Town of Ulster

FlexTech Study

Opinion of Probable Construction CostDuperon Screening (Option #3)


UNIT COST

$260,000

$15,000

$43,000




$7,000

SUBTOTAL




(POINT ESTIMATE)


construction cost:




Equipment

Heat Exchanger 1 EA $ 79,000

Mixed Fuel Boiler 1 EA $ 222,000


Construction


I&C 1 LS $ 31,000


$ 390,000

10% $ 40,000

25% $ 98,000

30% $ 117,000

$ 650,000

$79,000

$222,000

Town of Ulster

FlexTech Study

Opinion of Probable Construction CostAnearobic Digester Heating


UNIT COST

$37,000

$31,000

$7,000




SUBTOTAL





(POINT ESTIMATE)


construction cost:



Equipment

Pumped Mixing System 1 EA $ 50,000

Primary Digester Fixed Cover 1 EA $ 180,000

Secondary Digester Floating Cover 1 EA $ 210,000


Dual-Fuel Boiler 1 EA $ 142,500

Gravity Belt Thickener 1 EA $ 377,000

Equipment + Installation SUBTOTAL $ 1,038,500

Construction


I&C 1 LS $ 99,000


$ 1,280,000

10% $ 130,000

25% $ 320,000

30% $ 384,000

$ 2,120,000


$50,000

$180,000

$210,000

$99,000

Town of Ulster

FlexTech Study

Opinion of Probable Construction CostAnearobic Digester Upgrades


UNIT COST





$79,000

$7,000

SUBTOTAL




(POINT ESTIMATE)

$142,500

$377,000

$95,000



Equipment

Vertical Draft Tube Mixing 1 EA $ 135,000


Natural Gas Boiler 1 EA $ 127,500

Fixed Cover 1 EA $ 180,000


Construction


I&C 1 LS $ 21,000


$ 620,000

10% $ 70,000

25% $ 155,000

30% $ 186,000

$ 1,040,000



SUBTOTAL




(POINT ESTIMATE)




$135,000

$79,000

$127,500

$180,000

$44,000

$21,000

$7,000

UNIT COST

Town of Ulster

FlexTech Study

Opinion of Probable Construction CostAnearobic Digester "Stop-Gap" for Regional Biosolids Disposal




Equipment

Pumped Mixing System 1 EA $ 50,000

Primary Digester Fixed Cover 1 EA $ 180,000

Secondary Digester Gasholding Cover 1 EA $ 220,000


Natural Gas Boiler 1 EA $ 127,500

CHP 1 EA $ 780,000

Gravity Belt Thickener 1 EA $ 377,000

Equipment + Installation SUBTOTAL $ 1,813,500

Construction


I&C 1 LS $ 177,000


$ 2,230,000

10% $ 230,000

25% $ 558,000

30% $ 669,000

$ 3,690,000

Town of Ulster

FlexTech Study

Opinion of Probable Construction Cost

$7,000


UNIT COST

$180,000

$177,000

$50,000

$79,000

$780,000

$377,000

$202,000

Anearobic Digesters Upgrades with CHP






(POINT ESTIMATE)


$220,000

$127,500



SUBTOTAL


APPENDIX B

Manufacturers’ Cut Sheets

Patented self cleaning semi-open channel impeller, ideal f or pumping inwaste water applications. Possible to be upgraded with Guide-pin®f or ev en better clogging resistance. Modular based design with highadaptat ion grade.

Head

433 234mm

78.6% Eff.

0

4

8

12

16

20

24

28

32

36

40

44

48

52

56

60

64

68

72

76

80

84

88

92

[ft]

0 400 800 1200 1600 2000 [US g.p.m.]

Impeller

Frequency

Motor

Rated v oltage

-

Rated power

Rated speed

Number of poles

Rated current

460 V60 Hz

20 hp

4

1755 rpm

26 A

NT 3153 MT 3~ 433

Motor #

3~

Suction Flange Diameter

NT,FT 3153 MT

* Dimension to inlet elbow flange.

* * For concrete foundation dimensions, see drawing768 50 00.

Not supplied by X ylem.

Ø8"

Ø6"

**

n9 71 6

x M 1 6 (4 x )

n13"xM16 (4x)

caleS

Dr awn

Reg no

Dat ebyChec k ed

by

DRAW ING

AUTOCAD

Denom inat ion

Dimensional drwg

7787300 3

130702DS

1:1

Ø8"/Ø6 "

13

361 2

1734

73 81

01 4

834

1458

223 4

min

.

90Â° (

4x)

163 4

67 8

5*

âÆ&11

16

(4x)

201 2

1334

253 4

2012

187 8

Impeller diameter 234 mmNumber of blades 2

N3153.185 21-18-4AA-D 20hp

Stator v ariant 5

Phases

Starting current 148 A

Technical specification

Note: Picture might not correspond to the current configuration.

Power f actor

Motor ef f iciency

1/1 Load3/4 Load1/2 Load


0.830.770.66

87.5 %89.0 %89.0 %

5 7/8 inchCurve ISO

T - Vertical Permanent, DryInstallation:

Configuration

Impeller material Hard-Iron ™

General

Discharge Flange Diameter 5 7/8 inch

Water, pure

Standard

Last updateCreated on

8/17/2018

Created byProject IDProject

Head

Pump Efficiency

Overall Eff iciency

Pow er input P1

Shaft pow er P2

NPSH-values

433 234mm

78.6% Eff.

62.3 ft

71.3 %

63.3 %

16.9 hp

19 hp

23 ft 764.1 US g.p.m.

433 234mm

62.3 ft

71.3 %

63.3 %

16.9 hp

19 hp

23 ft 764.1 US g.p.m.

433 234mm

62.3 ft

71.3 %

63.3 %

16.9 hp

19 hp

23 ft 764.1 US g.p.m.

433 234mm (P2)

62.3 ft

71.3 %

63.3 %

16.9 hp

19 hp

23 ft 764.1 US g.p.m.

433 234mm (P1)

62.3 ft

71.3 %

63.3 %

16.9 hp

19 hp

23 ft 764.1 US g.p.m.

433 234mm

62.3 ft

71.3 %

63.3 %

16.9 hp

19 hp

23 ft 764.1 US g.p.m.

0

5

10

15

20

25

30

35

40

45

50

55

60

65

70

75

80

85

90

[ft]

0

20

40

60

[%]

0

5

10

15

[hp]

20

25

30

35

40

[ft]

0 200 400 600 800 1000 1200 1400 1600 1800 2000 2200 [US g.p.m.]

Motor #

60 Hz

Phases 3~

460 VNumber of poles 4

Rated power 20 hp

Starting currentRated current 26 A

Rated speed 1755 rpm

N3153.185 21-18-4AA-D 20hp

Stator variantNumber of blades 2

Power factor

NT 3153 MT 3~ 433

Suction Flange Diameter

Performance curve

Pump

Impeller diameter 93/16"

Motor

Rated voltage

148 A

Motor efficiency



Frequency5

0.83

87.5 %

0.770.66

89.0 %89.0 %

150 mm

Curve ISO

Discharge Flange Diameter 5 7/8 inch

Water, pure


8/17/2018


ECarlson

Line

ECarlson

Line

ECarlson

Line

ECarlson

Line

ECarlson

Line

ECarlson

Line

Head

433 234mm

78.6% Eff.

62.3 ft

764.1 US g.p.m.0

2

4

6

8

10

12

14

16

18

20

22

24

26

28

30

32

34

36

38

40

42

44

46

48

50

52

54

56

58

60

62

64

66

68

70

72

74

76

78

80

82

84

86

88

90

92

94

[ft]

0 200 400 600 800 1000 1200 1400 1600 1800 2000 2200 [US g.p.m.]

1

NT 3153 MT 3~ 433Duty Analysis

Curve ISO

Indiv idual pump Total

1 764 US g.p.m. 62.3 ft 16.9 hp 764 US g.p.m. 62.3 ft 16.9 hp 71.3 % 309 kWh/US MG 23 ft

Pumps running Specific /System Flow Head Shaft power Flow Head Shaft power Pump eff. energy NPSHre

Water, pure

Curve issue 7


8/17/2018


Head

Pump Efficiency

Overall Eff iciency

Pow er input P1

Shaft pow er P2

NPSH-values

55 Hz

78.6%

50 Hz

78.6%

45 Hz

78.6%

40 Hz

78.6%

433 234mm

78.6% Eff.

55 Hz50 Hz45 Hz40 Hz 433 234mm433 234mm

55 Hz

50 Hz

45 Hz40 Hz

433 234mm (P2)433 234mm (P1)

55 Hz

50 Hz

45 Hz

40 Hz

433 234mm

0

4

8

12

16

20

24

28

32

36

40

44

48

52

56

60

64

68

72

76

80

84

88

92

[ft]

0

10

20

30

40

50

60

70

[%]

0

4

8

12

16

20

[hp]

15

20

25

30

35

40

[ft]

0 200 400 600 800 1000 1200 1400 1600 1800 2000 2200 [US g.p.m.]

NT 3153 MT 3~ 433VFD Curve

Curve ISO


8/17/2018


ECarlson

Line

ECarlson

Line

Head

55 Hz

78.6%

50 Hz

78.6%

45 Hz

78.6%

40 Hz

78.6%

433 234mm

78.6% Eff.

62.3 ft

764.1 US g.p.m.0

4

8

12

16

20

24

28

32

36

40

44

48

52

56

60

64

68

72

76

80

84

88

92

[ft]

0 200 400 600 800 1000 1200 1400 1600 1800 2000 2200 [US g.p.m.]

1

NT 3153 MT 3~ 433VFD Analysis

Curve ISO

1 60 Hz 764 US g.p.m. 62.3 ft 16.9 hp 764 US g.p.m. 62.3 ft 16.9 hp 71.3 % 309 kWh/US MG 23 ft1 55 Hz 701 US g.p.m. 52.4 ft 13 hp 701 US g.p.m. 52.4 ft 13 hp 71.3 % 259 kWh/US MG 20.1 ft1 50 Hz 637 US g.p.m. 43.3 ft 9.79 hp 637 US g.p.m. 43.3 ft 9.79 hp 71.3 % 214 kWh/US MG 17.2 ft1 45 Hz 574 US g.p.m. 35.1 ft 7.14 hp 574 US g.p.m. 35.1 ft 7.14 hp 71.3 % 176 kWh/US MG 14.6 ft1 40 Hz 510 US g.p.m. 27.7 ft 5.01 hp 510 US g.p.m. 27.7 ft 5.01 hp 71.3 % 144 kWh/US MG 12.1 ft

Pumps running Specific /System Frequency Flow Head Shaft power Flow Head Shaft power Hyd eff. energy NPSHre


8/17/2018


NT 3153 MT 3~ 433Dimensional drawing

NT,FT 3153 MT

* Dimension to inlet elbow flange.

** For concrete foundation dimensions, see drawing768 50 00.

Not supplied by Xylem.

Ø8"

Ø6"

**

n9716

xM16 (4x)

n13"xM16 (4x)

caleS

Drawn

Reg no

DatebyChecked

by

DRAWINGAUTOCAD

Denomination

Dimensional drwg

7787300 3

130702DS

1:1

Ø8"/Ø6"

13

361 2

1734

73 810

1 4

834

1458

223 4 m

in.

90Â° (

4x)

163 4

67 8

5*

âÆ&1116 (4x)

201 2

1334

253 4

2012

187 8


8/17/2018


Version 10

0% 0.00 USD Energy

0% 0.00 USD Investment costs

0% 0.00 USD Installation & commissioning

0% 0.00 USD Operating cost

0% 0.00 USD Maintenance & repair

0% 0.00 USD Downtime

0% 0.00 USD Environmental

0% 0.00 USD Decommissioning

0% 0.00 USD Energy (1st year)

0% 0.00 USD Investment costs (1st year)

0% 0.00 USD Installation & commissioning (1st year)

0% 0.00 USD Operating cost (1st year)

0% 0.00 USD Maintenance & repair (1st year)

0% 0.00 USD Downtime (1st year)

0% 0.00 USD Environmental (1st year)

0% 0.00 USD Decommissioning (1st year)

2 %

3 %

15

0.00

0.00

NT 3153 MT 3~ 433

5600

0.00 USD

Inflation rate (rate of price increases)

Interest rate (for investment)

Total l ifetime

Annual operating time

Energy cost per kWh

Total costs

First year costs

Life cycle costs (LCC)

Disclaimer: The calculations and the results are based on user input values and general assumptions and provide only estimated costs for the input data. Xylem inc can therefore not guarantee that the estimated savings will actually occur.

USD

USD

Power input P1


8/17/2018


®

®

ORIGINAL

ISSUE

LET ECN NO DATE

BY

APPV'D

Smith & Loveless, Inc.

SCALE: CODE:

CHECKED BY:

APPROVED BY:

DRAWN BY: DATE:

ANGLES

DECIMALS

FRACTIONS

ALLOWABLE

TOLERANCES

FOR

SIZE

FILE

NAME

SERIAL

NO

DWG

NO

REV

PLOT

SCALE

U/M

WT.

©

DATE:

DATE:

RECIPIENT AGREES THE INFORMATION ON THIS DRAWING AND THE EQUIPMENT DEPICTED HEREIN IS CONFIDENTIAL, PROPRIETARY AND

PROTECTED UNDER UNITED STATES AND FOREIGN INTELLECTUAL PROPERTY LAWS AND IS OWNED BY SMITH & LOVELESS, INC. UNLESS

SPECIFIC WRITTEN CONSENT IS GIVEN BY SMITH & LOVELESS, INC. YOU MAY NOT COPY, REPRODUCE, TRANSMIT, DISPLAY, DISTRIBUTE, ALTER,

OR OTHERWISE USE IN WHOLE OR IN PART ANY INFORMATION ON THIS DRAWING OR THE EQUIPMENT DEPICTED HEREIN, OR PERMIT SUCH

ACTIONS TO BE TAKEN BY A THIRD PARTY. SMITH & LOVELESS, INC. TRANSFERS NO RIGHTS IN THIS DRAWING OR THE INFORMATION AND

EQUIPMENT DEPICTED HEREIN. DIMENSIONS ARE IN INCHES UNLESS OTHERWISE NOTED.

N90-56

D N2013-52

1/2014

RGD

ACM

NTS

SBM

D. FISHER

R. DIEHM

1990,93,2002,10,14

6/19/1990

3/1991

4/1991

~

~

~

EA

67C175D.dwg

67C175 D

1:1

Smith &

Loveless, Inc.

250 GPM SECOND-STAGE PISTA

GRIT CONCENTRATOR NI-HARD

67C175/D

SHEET 1 OF 1

2'-1" [637 mm]

3 3/8" [85 mm]

10 13/16" [275 mm]

7 9/16" [192 mm]

5/8" [16 mm]

1'-0" [305 mm] DIA.

4 5/8" [117 mm]

2 5/16" [59 mm]

4" [101 mm]

3 1/2" [89 mm]

7 1/2" [191 mm]

1'-2" [356 mm]

1'-3" [381 mm]

1'-0 7/8" [327 mm]

1 1/16" [27 mm]

5 1/2" [140 mm] O.D. PLAIN END GRIT OUTLET

4 1/2" [114 mm] O.D. PLAIN END INLET

7/8" X 1 1/2" [22 mm X 38 mm] SLOT

(4 PLACES)

6" [150 mm] DIA. DRAIN OUTLET WITH ANSI 150 LB. FLANGE

REDRAWN PER REVISION D

NOTE:

1. COPYRIGHT (C) 1990, 93, 2002, 10, 14 SMITH & LOVELESS, INC.

DDDDEEEETTTTAAAAIIIILLLL AAAA

}

OOOORRRRIIIIGGGGIIIINNNNAAAALLLLIIIISSSSSSSSUUUUEEEE

LLLLEEEETTTT EEEECCCCNNNN NNNNOOOO DDDDAAAATTTTEEEE BBBBYYYYAAAAPPPPPPPPVVVV''''DDDD

SSSSmmmmiiiitttthhhh &&&& LLLLoooovvvveeeelllleeeessssssss,,,, IIIInnnncccc....

SSSSCCCCAAAALLLLEEEE:::: CCCCOOOODDDDEEEE::::

CCCCHHHHEEEECCCCKKKKEEEEDDDD BBBBYYYY::::

AAAAPPPPPPPPRRRROOOOVVVVEEEEDDDD BBBBYYYY::::

DDDDRRRRAAAAWWWWNNNN BBBBYYYY:::: DDDDAAAATTTTEEEE::::

AAAANNNNGGGGLLLLEEEESSSS

DDDDEEEECCCCIIIIMMMMAAAALLLLSSSS

FFFFRRRRAAAACCCCTTTTIIIIOOOONNNNSSSS

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UUUU////MMMM WWWWTTTT....

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DDDDAAAATTTTEEEE::::

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NNNN2222000000009999----44448888

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NNNN2222000011112222----33338888CCCC

11110000////2222000011110000FFFFMMMMNNNNCCCCGGGGMMMM

CCCCGGGGMMMMFFFFMMMMNNNN5555////2222000011111111

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2222000000009999,,,,11110000,,,,11111111,,,,11113333

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8888////2222000000009999

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~~~~

~~~~

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66667777BBBB333377779999 CCCC

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SSSSmmmmiiiitttthhhh &&&&LLLLoooovvvveeeelllleeeessssssss,,,, IIIInnnncccc....

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Smith &

Loveless, Inc.

Smith & Loveless, Inc.

PISTA® TURBO™ GRIT WASHER W/

TRI-CLEANSE TECHNOLOGY™ MODEL 250GENERAL ARRANGEMENT

FMN

FBO

CGM

NTS

8/2009

8/2009

8/2009

~

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67B380 B

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N2009-48

A N2010-4 10/2010FMN

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SHEET 1 OF 1

2009, 10, 11

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B N2011-37 3/2011FT

FMN

CODE:

RECIPIENT AGREES THE INFORMATION ON THIS DRAWING AND THE EQUIPMENT DEPICTED HEREIN IS CONFIDENTIAL, PROPRIETARY AND

PROTECTED UNDER UNITED STATES AND FOREIGN INTELLECTUAL PROPERTY LAWS AND IS OWNED BY SMITH & LOVELESS, INC. UNLESS

SPECIFIC WRITTEN CONSENT IS GIVEN BY SMITH & LOVELESS, INC., YOU MAY NOT COPY, REPRODUCE, TRANSMIT, DISPLAY, DISTRIBUTE, ALTER,

OR OTHERWISE USE IN WHOLE OR IN PART ANY INFORMATION ON THIS DRAWING OR THE EQUIPMENT DEPICTED HEREIN, OR PERMIT SUCH

ACTIONS TO BE TAKEN BY A THIRD PARTY. SMITH & LOVELESS, INC. TRANSFERS NO RIGHTS IN THIS DRAWING OR THE INFORMATION AND

EQUIPMENT DEPICTED HEREIN. DIMENSIONS ARE IN INCHES UNLESS OTHERWISE NOTED.

©

6" ELBOW

2" N.P.T. BALL VALVE & PIPING

SEE NOTE 4

1/4" N.P.T. AIR INLET

5 SCFH @ 70 PSI

1" N.P.T. WASH WATER INLET

20 GPM @ 60 PSI

ALTERNATE ORIENTATION

4" DIA. PIPING FROM

GRIT PUMP

COMPRESSION

COUPLING

(NOT BY S&L)

S&L TO HERE

qq

8" DIA. DRAIN TO PISTA}INLET CHANNEL

6" PIPING

NOTES:

1. INTERCONNECTING PIPING AND FITTINGS ARE NOT SUPPLIED BY S&L.

2. SEE DRAWING 67C175 FOR PISTA} NI-HARD GRIT CONCENTRATOR DETAILS.

3. SEE SEPARATE DRAWING FOR GRIT WASHER MODEL 250 WITH CONCENTRATOR.

4. THE 2" DRAIN PIPE WITH BALL OR PLUG VALVE IS USED TO FACILITATE CLEAN UP AND INSPECTION.

5. THE 3" DRAIN PIPE WITH AUTOMATIC BALL VALVE IS USED TO FACILITATE ORGANIC DRAIN.

6. TO PROVENT SIPHONING, THE CENTERLINE OF THE GRIT CONCENTRATOR INLET MUST BE

AT LEAST 24" ABOVE THE MAXIMUM WATER LEVEL IN THE PISTA} CHAMBER.

7. PIPING CONNECTIONS ARE PROVIDED ON BOTH SIDES TO FACILITATE EITHER RIGHT OR LEFT HAND

CONNECTION. A BLIND FLANGE IS PROVIDED ON THE SIDE THAT IS NOT USED AS A DRAIN.

8. COPYRIGHT (C) 2009, 10, 11 SMITH & LOVELESS, INC.

6" X 45° LATERAL WYE

S&L TO HERE

GRIT WASHER

(BY S&L)

LIFTING LOOP

(4 PLACES)

3" N.P.T. BALL VALVE

WITH ELEC. ACTR.

SEE NOTE 5

(BY S&L)

4" PIPING

6" X 4" REDUCER

6" X 45° ELBOW

PISTA® GRIT CONCENTRATOR

(BY S&L)

6" DIA X 5'-0" MINIMUM

AIR VENT PIPE

S&L TO HERE

3" ELBOW & HOSE

6" TEE

(NOT BY S&L)

8'-0" MAX

4" ELBOW

ALTERNATE ORIENTATION

3'-11"

WK

Line

WK

Typewritten Text

Ulster, New York

Budget Proposal

Ulster WWTP

prepared for:

Acadis Emily Carlson

June 19, 2019

Xylem Water Solutions USA, Inc. 14125 South Bridge Circle Charlotte, NC 28273

June 19, 2019 Acadis Emily Carlson Project Name: Ulster WWTP Project Number: J16080184021 Revision Number: 2 Ms. Carlson: We are pleased to submit the following proposal for the Ulster WWTP UV opportunity based on the information provided within your inquiry. This is a revised proposal that includes a redundant UV reactor in the design. The LBX series is a closed vessel system specifically designed for water and wastewater applications. We have highlighted below the major benefits of the LBX vessels that can improve the performance of the system and increase the lifespan of the equipment:

Our system includes our latest low-pressure, high-intensity Ecoray lamps which have a guaranteed life of 14,000 hours and are a more efficient lamp with a lower power consumption requirement. In addition, from a maintenance standpoint, the Ecoray lamps are more robust and easy to remove and replace.

Latest sensor technology – germicidal UV sensor of reference sensor quality (ÖNORM approved) providing the highest accuracy in UV system monitoring and control.

Automatic wiping system that prevents fouling of the quartz sleeve with easy replacement of wipers.

The WEDECO Remote Service Support allows us to monitor and if necessary to adjust the LBX control unit from remote in the same way as directly on site. Therefore Remote Service Support improves the service quality of the LBX unit due to faster and even more cost effective technical support (e.g. maintenance, software updates or service diagnosis) through WEDECO service technicians.

WEDECO’s established and proven TotalCare Program provides our customers with proactive services all designed to minimize the cost of ownership to operate and maintain a UV system. TotalCare services can provide our customers with system health checks, efficiency audits, training and preventative maintenance contracts.

Please refer to our local representative Dave Boshart of GP Jager, (315) 632-4259 or us if you have any questions. We look forward to working with you on this exciting project. Sincerely, Julia Beilsmith Bill Mattfeld Territory Manager Senior Applications Engineer (954) 483-8563

Ulster, Ny Lbx Budget Proposal 19.06.19 R2 Page 4 of 11 Date: June 19, 2019 Revision no.: 2

Table of Content

1 Xylem Overview ........................................................................................................ 5

2 General Process Description .................................................................................. 7

2.1 Design ........................................................................................................................ 7 2.2 Process Description ................................................................................................... 7

3 Technical Description .............................................................................................. 8

4 Price & Scope of Supply .......................................................................................... 9

4.1 Wedeco Scope of Supply ........................................................................................... 9 4.2 Budget Price .............................................................................................................. 9

5 Commercial Terms & Conditions .......................................................................... 10

6 Attachments ............................................................................................................ 11

6.1 Brochures / Drawings / others .................................................................................. 11


1 Xylem Overview

Xylem is a leading global water technology provider, enabling customers to transport, treat, test and efficiently use water in public utility, residential and commercial building services, industrial and agricultural settings. The company does business in more than 150 countries through a number of market-leading product brands, and its people bring broad applications expertise with a strong focus on finding local solutions to the world’s most challenging water and wastewater problems.

Xylem’s treatment business offers a portfolio of products and systems designed to effectively meet the demands and challenges of treating water and wastewater. From smarter aeration to advanced filtration to chemical-free disinfection, Xylem leverages its well-known Treatment brands, Flygt, Leopold, Sanitaire, and Wedeco, to offer hundreds of solutions backed by a comprehensive, integrated portfolio of services designed to ensure we can meet our customers’ needs in a number of different industries including municipal water and wastewater, aquaculture, biogas and agriculture, food and beverages, pharmaceuticals, and mining.

Our scientists and engineers utilize their deep applications expertise and continually listen and learn from our customers’ situations to create solutions that not only use less energy and reduce life-cycle costs, but also promote the smarter use of water.

Wedeco has accepted the challenge of the 21st century. With the Wedeco brand for UV Disinfection, ozone oxidation & AOP solutions, we own the advanced technologies for chemical-free and environmentally friendly treatment of drinking water, wastewater and process water as well as further industrial treatment processes. We

constantly invest a large portion of our energy in the development of high-tech components, systems and equipment, as well as in the study of new areas of application for UV, ozone & AOP. In doing so, we have always given special attention to the increase in energy efficiency of our Products equipped with our unique UV lamps and ozone electrodes.


The special characteristics of the Wedeco Ecoray UV lamp are its special doping and the unique long-life coating. Because of these features, a constantly high UV light yield is achieved with a substantially extended lamp service life at the same time. In addition, by using this technology it is not necessary to apply liquid mercury inside the lamp. Wedeco UV lamps cannot be surpassed in economic efficiency.

In relation to expenditure of energy, the High-Intensity/Low-Pressure Technology provides a light yield three times higher than comparable UV lamps of widely used Medium Pressure Technology. A higher light yield also means a lower heat generation at the same time. Thanks to this, Wedeco UV lamps become less susceptible to varying water temperatures. Even the formation of deposits on the quartz sleeves as well as lamp aging is considerably lower than with alternative UV lamp technologies in Herford and Essen.

Xylem's Wedeco ozone systems combine maximum flexibility and reliable operating characteristics for small to large ozone capacities. The ozone generator system and control unit can be combined and supplemented with option sets that allow for various application requirements. Effizon evo 2G ozone electrodes are the core of our technology and achieve an unmatched level of reliability and energy efficiency. The electrodes are manufactured completely from inert materials, without the need for fuses or

coatings, making them highly resistant to corrosion. This means that the Wedeco ozone generators are practically maintenance free with no need for regular cleaning or replacement of the electrodes. We rely on consistently high-quality standards in all divisions of the company. Moreover, product quality and manufacturing operations are constantly monitored and optimized in continuous improvement processes. Established quality controls give Xylem and you the security of knowing that Wedeco UV, Ozone & AOP systems will always operate reliably. For more information please visit us at http://www.xylem.com/treatment/

WEDECO Effizon® evo 2G Ozone electrode

WEDECO Ecoray UV lamp


2 General Process Description

2.1 DESIGN

Design Flow Rates - Peak Design Flow 2.5 MGD

Total Suspended Solids (Maximum) 5 mg/l 5-day B.O.D. 25 mg/l Allowable Effluent Temperature Range 41-86°F UV Transmittance at 253.7 nm 65%, minimum Maximum Influent Fecal Coliforms Count 100,000 Fecal Coliforms/100 mL Effluent Disinfection Standard

- Fecal Coliforms (30 day geometric mean) <200 Fecal Coliforms/100 mL - Fecal Coliforms (7 day geometric mean) <400 Fecal Coliforms/100 mL

UV Dose

- Minimum Design UV Dose (based on calculated PSS dose)

>60 mJ/cm²

2.2 PROCESS DESCRIPTION

The proposed UV system is based on an influent quality that meets the above listed criteria and requires that all wastewater to be disinfected has undergone prior treatment through Rotating Biological Contactors (RBCs) and a final settling tank.


3 Technical Description

CONFIGURATION: LBX 850e

DESCRIPTION UNITS VALUE

Number of 316L SS vessels

Number of lamps per vessel

Number of intensity sensors per vessel

Total number of lamps

2 (1 duty, 1 standby)

32

1

64

REACTOR DIMENSIONS: Inches See attached drawing

HEADLOSS PER VESSEL (at peak flow): Inches 12.2

POWER CONSUMPTION:

Peak Flow Lamp and Ballast Power

kW

10


4 Price & Scope of Supply

4.1 WEDECO SCOPE OF SUPPLY Cylindrical 316L stainless steel reactor with integrated baffle plates 32 low pressure, high intensity WEDECO Ecoray® UV lamps per vessel One (1) Type 12, Fan-cooled, Painted Steel electrical enclosure per vessel Calibrated UV intensity monitoring system (UV sensor ÖNORM certified) Electronic UV lamp supervision system WEDECO EcoTouch Controller with Touchscreen HMI (one per vessel) Optidose Dose pacing incl. variable lamp power SCADA Communication Automatic wiping system (Electric) 39 ft (12 m) lamp cables Manufacturer’s field service on site [2 trips / 6 days] Electrical supply: 480 V, 3 phase, 60 Hz, 4 wire + ground

4.2 BUDGET PRICE

LBX Standard Equipment

Total $177,000


5 Commercial Terms & Conditions

Commercial Details

Submittal time: 8 weeks after approved purchase order

Delivery time: 18 weeks after approved submittals

Terms of Delivery: All prices are FCA factory with full freight allowed to the job site.

Terms of Payment:

This proposal is based upon WEDECO’s General Terms of Business. Price is based upon the following payment terms (net 30 days):

10% net 30 days upon initial submittal of mechanical/electrical drawings for approval

80% net 30 days from the date of the respective shipments of the product

5% installation of the Xylem equipment, NTE 150 days after shipment

5% start-up / training on the Xylem equipment, NTE 180 days after shipment

Warranties:

Lamp Warranty: Guaranteed 14,000 hours of operation, prorated after 9,000 hours.

System Warranty: 18 months from date of delivery or 12 months from date of substantial completion of UV equipment whichever comes first.

Xylem, Inc. www.xylem.com/treatment

6 Attachments

6.1 BROCHURES / DRAWINGS / OTHERS

7'-1

1"M

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THIS DRAWING AND ALL INFORMATION AND KNOWLEDGECONTAINED OR REFERRED HEREIN ARE THE CONFIDENTIAL AND PROPRIETARY PROPERTY OF SUEZ AND AS SUCH ARE INSTRUMENTS OF SERVICE FOR USE SOLELY WITH RESPECT TO THIS PROJECT. THESE INSTRUMENTS OF SERVICE SHALL NOT BE REPRODUCED, TRANSMITTED, DISCLOSED OR USED OTHERWISE, IN WHOLE OR IN PART, WITHOUT PRIOR WRITTEN AGREEMENT BY SUEZ AND MUST BE IMMEDIATELY RETURNED OR DESTROYED UPON REQUEST.

A

,

Phone (804) 756-7600 D

REVISION DESCRIPTIONREV DATE REVISION DESCRIPTIONREVDRAWN CHECKED APP DATE PROJECT INFORMATIONAPPCHECKEDDRAWN

SCALE

CHECKED

REF.

APP

DRAWN

BY

DW

G. N

O.SIZE

DATE

1 OF 1

RE

V.

ORIGINAL ISSUE

SUEZ CONTRACT No. ANTS-

SHEET

MDLBFHC

01/17/17

01/17/17

01/20/17

AQUARAY 40HO VLS DISINFECTION SYSTEMCHANNEL AND LIFTING LAYOUTONE MODULE

H000194 SNA ME 252 7701 DA 001

MDL MDL BF 07/11/17

LAST SAVED : Wednesday, July 12, 2017 11:49:16 AM

8007 Discovery DriveRichmond, Virginia, 23229 USA

,

SUGGESTED CHANNEL CONCRETE LAYOUTLIFTING LAYOUT

2'-0"

APROXIMATE WEIGHT : 400 LBS (181 kG)

8'-8

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TOTA

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7'-8

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CHANNEL WIDTH2'- 1

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WASTEWATER DISINFECTION

1

Trojan Technologies is an ISO 9001: 2000 registered company that has set the standard for proven UV technology and ongoing innovation for more than 30 years. With unmatched scientific and technical expertise, and a global network of water treatment specialists, representatives and technicians, Trojan is trusted more than any other firm as the best choice for municipal UV solutions. Trojan has the largest UV installation base – over 7,000 municipal installations worldwide – and almost

one in five North American wastewater treatment plants rely on our proven, chemical-free disinfection solutions.

The TrojanUV3000Plus™ is one of the reasons why. This highly flexible system has demonstrated its effective, reliable performance around the world. It is well suited to wastewater disinfection applications with a wide range of flow rates, including challenging effluent such as combined sewer overflows, primary and tertiary wastewater reclamation and reuse.

Following a review with Plant Operators and Engineers, the proven infrastructure of the TrojanUV3000Plus™ has been refined to make it even more operator-friendly. The result is more dependable performance, simplified maintenance, and maximized UV lamp output at end-of-lamp life. It also incorporates innovative features to reduce O&M costs, including variable output electronic ballasts and Trojan’s revolutionary ActiClean™ system – the industry’s only chemical/mechanical sleeve cleaning system.

The Reference Standard in UV Proven, chemical-free disinfection from the industry leader

Short trim this panel

The PDC powers each bank of modules. Its ergonomic, angled design provides easy access to module power cables and hoses for the ActiClean™ cleaning system. The robust stainless steel enclosure is mounted across the channel, with module fuses and interlock relays visually aligned with module receptacles for fast diagnostics. Modules are individually overload protected for safety. Like all TrojanUV3000Plus™ components, the PDC can be installed outdoors and requires no shelter or HVAC.

Designed for efficient, reliable performance

2

Power Distribution Center (PDC)

UV Intensity Sensor

The UV intensity sensor continually monitors UV lamp output. The ActiClean™ system automatically cleans the sensor sleeve every time lamp sleeves are cleaned.

The SCC monitors and controls all UV functions, including dose pacing – the automatic, flow-based program that ensures proper disinfection levels while conserving power and extending lamp life. The microprocessor-based SCC is integrated onto one Power Distribution Center, and features a user-friendly, touch-screen HMI display with weatherproof cover, and Modbus Ethernet SCADA connectivity. For systems treating larger flows, or where more sophisticated control is desired, a PLC-based System Control Center is available. It features a separate wall-mount panel with colour, touch-screen HMI, Ethernet/IP SCADA connectivity, automatic slide/sluice gate control for multiple channels, and integrated Flash memory trend logging (flow, power, UVT, dose).

Electronic Ballasts

The variable-output (60 - 100% power) electronic ballast is mounted in its own TYPE 6P (IP67) rated enclosure within the module frame. Features “quick connect” electrical connections. Cooling is by convection.

AlarmsExtensive alarm reporting system ensures fast, accurate diagnosing of system process and maintenance alarms. Programmable control software can generate unique alarms for individual applications.

System Control Center (SCC)

Water Level Controller

A fixed weir, motorized weir gate, or Automatic Level Control gate (shown), is required in the channel to maintain the appropriate water level over the lamps. Trojan engineers will work with you to select the appropriate level control device for your application.

Water Level Sensor

The system includes an electrode low water level sensor for each channel. If effluent levels fall below defined parameters, an alarm will be activated.

UV Modules

UV lamps are mounted on modules installed in open channels. The lamps are enclosed in quartz sleeves, and positioned horizontally and parallel to water flow. A bank is made up of multiple modules placed in parallel. All ballast and lamp wiring runs inside the module frame.

3

2. ActiClean™ Wiper Assembly A submersible wiper drive on each UV module drives the wiper carriage assembly along the module. Attached wiper canisters surround the quartz sleeves, and are filled with ActiClean™-WW Gel. The gel uses food grade ingredients and contacts the lamp sleeves between the two wiper seals. Cleaning takes place while the lamps are submerged and while they are operating.

1. Hydraulic System Center (HSC)The HSC actuates the ActiClean™ cleaning system, and is mounted close to the channel in a stainless steel enclosure. It contains the pump, valves and ancillary equipment required to operate the cleaning system, and links to the extend/retract hoses of the module wiper drives via a manifold located on the underside of the PDC.

ActiClean™ Cleaning SystemThe system consists of two components:

Key Benefits TrojanUV3000Plus™

Increased operator, community and environmental safety. The TrojanUV3000Plus™ uses environmentally-friendly ultraviolet light – the safest

alternative for wastewater disinfection. No disinfection by-products are created, and no

chemicals must be transported, stored or handled.

Well suited to changing regulations. Trojan UV systems do not have any negative

impact on receiving waters and do not produce disinfection by-products, making them a

strategic, long-term choice as regulations become increasingly stringent.

Most efficient UV system available versus competitive low-pressure, high-output

(LPHO) or amalgam lamp-based systems.

Reduces operating costs by as much as 30% per year. Long-lasting

amalgam lamps and variable-output ballasts optimize UV output to meet wastewater

conditions and maximize system efficiency versus competitive UV systems.

Proven disinfection based on actual dose delivery testing (bioassay validation), and

over 400 TrojanUV3000Plus™ installations worldwide. Real-world, field performance data

eliminates sizing assumptions resulting from theoretical dose calculations.

Dual-action sleeve cleaning system improves performance and reduces labor costs. Automatic ActiClean™ chemical/mechanical cleaning system

maintains sleeve transmittance of at least 95%, and works online – eliminating the need to

remove modules from the channel.

Reduced installation costs. The compact TrojanUV3000Plus™ can be retrofitted

into existing chlorine contact tanks, and comes pre-tested, pre-assembled and pre-wired to

minimize installation costs.

Outdoor installation flexibility. The entire TrojanUV3000Plus™ system can be

installed outdoors, eliminating the need and costs of a building, shelter, and HVAC for ballast

cooling.

Guaranteed performance and comprehensive warranty. Trojan systems

include a Lifetime Performance Guarantee, the best lamp warranty in the industry, and use

lamps from multiple approved suppliers. Ask for details.

4

Benefits:• Cleans 50% more effectively

than mechanical wiping alone

• Improves lamp performance for more reliable dose delivery

• Elimination of fouling factor reduces equipment sizing requirements and power consumption

• Automatic, online cleaning reduces O&M costs associated with manual cleaning

• Combination of chemical and mechanical cleaning action removes deposits on quartz lamp and sensor sleeves much more effectively than mechanical wiping alone

• Innovative wiper design incorporates a small quantity of ActiClean™-WW Gel for superior, dual-action cleaning

• Cleans automatically while the lamps are disinfecting. There’s no need to shut down the system, remove or bypass lamp modules for routine cleaning

• Proven in hundreds of systems around the world, including use in plants where heavy fouling had previously prohibited the use of UV disinfection technology

• ActiClean™ can be added to an installed TrojanUV3000Plus™ not originally equipped with a cleaning system

ActiClean™-WW Gel is Safe to Handle• ActiClean™-WW Gel is comprised of food-grade ingredients

• Quick connect on cleaning system allows for easy refill of gel solution

• Lubricating action of ActiClean™-WW Gel maximizes life of wiper seals

ActiClean™ Dual-Action, Automatic Cleaning SystemChemical/mechanical cleaning system eliminates sleeve fouling

The dual-action, chemical/mechanical cleaning with the ActiClean™ system provides superior sleeve cleaning and reduces maintenance costs. Fouling and residue build-up on quartz sleeves reduces system efficiency. ActiClean™ maintains at least 95% transmittance, ensuring sleeves are clean and the system is consistently delivering accurate dosing while reducing power consumption.

5

Efficacy of Cleaning Technologies to Control Sleeve Fouling

Benefits:• Performance data is generated

from actual field testing over a range of flow rates, effluent quality, and UVTs

• Provides physical verification that system will perform as expected; ensures public and environmental safety

• Provides accurate assessment of equipment sizing needs

• The TrojanUV3000Plus™ has been thoroughly validated through real-world bioassay testing under a wide range of operating conditions

• In-field bioassay testing offers the peace of mind and improved public and environmental safety of verified dose delivery – not theoretical calculations

• The USEPA has endorsed bioassays as the standard for assessment and comparison of UV technologies

• The disinfection performance ratings for the TrojanUV3000Plus™ are proof that what you see is what you actually get

Regulatory-Endorsed Bioassay ValidationReal-world testing ensures accurate dose delivery

Amalgam Lamps Require Less EnergyRequire fewer lamps and reduce O&M costs

Benefits:• Draw less energy than competitive

high-output systems – only 250 Watts per lamp

• Stable UV output over a wide range of water temperatures

• Fewer lamps are required to deliver the required dose, which reduces O&M costs

• Can treat lower quality wastewater such as primary effluents, combined sewer overflows, and storm water

• Fewer lamps allow systems to be located in compact spaces, reducing installation costs

Trojan’s high efficiency amalgam lamps generate stable UV output in a wide range of water temperatures.

6

Field Validated Dose vs. Theoretical Dose at 65% UVT(Before Fouling & Lamp Aging Are Taken into Account)

• Trojan’s amalgam lamps produce significantly higher UV output than conventional low-output lamps

• Fast and simple lamp changeouts; replacing a 50-lamp system takes less than two hours and requires no tools

• The lamps are sealed inside heavy-duty quartz sleeves by Trojan’s multi-seal system, maintaining a watertight barrier around the internal wiring while individually isolating each lamp and the module frame

• Lamps are pre-heated for reliable startup

This shows the validated dose of an actual working system and the theoretical dose calculated using UVDIS. Note that the UVDIS 3.1 dose calculation overestimates the system performance.

Benefits:• Trojan's high efficiency, amalgam

lamps deliver the most consistent UV output

• Trojan lamps have 20% less decline in UV output after 12,000 hours of use compared to competitive UV lamps

• Validated performance assures you of reliable dose delivery and prolonged lamp life

Amalgam Lamps Maintain Maximum UV OutputTrojan lamps deliver 98% of full UV output after more than one year of use

The lamps used on the TrojanUV3000Plus™ system have been independently validated to maintain 98% of original output after 12,000 hours of operation.

Open-Channel Architecture Designed for Outdoor Installation Cost-effective to install and expand

7

1,000 2,000 3,000 4,000 5,000 6,000 7,000 8,000 9,000 10,000 11,000 12,000

Decrease in UV Lamp Output Over Time

UV

Out

put

(%)

The TrojanUV3000Plus™ system delivers flexibility and cost savings through its simple installation in existing channels and chlorine contact chambers. The system can be situated outdoors with no additional building, shelter or cooling requirements.

Benefits:• Compact, open-channel design

allows cost-effective installation in existing effluent channels and chlorine contact chambers

• System can be installed outdoors to reduce capital costs – no building, shelter or HVAC is required

• Gravity-fed design eliminates costs of pressurized vessels, piping and pumps

• Scalable architecture allows precise sizing – reduces capital and O&M costs associated with oversizing

• Modular design is readily expandable to meet new regulatory or capacity requirements

• Trojan’s thorough design approach ensures that effluent quality, upstream treatment processes, and O&M needs are addressed in system configurations

• Horizontal lamp mounting delivers optimal hydraulic performance. This arrangement induces turbulence and dispersion, maximizing wastewater exposure to UV output

Benefits:• Lamps are protected in a fully

submersible, 316 stainless steel frame

• Waterproof module frame protects cables from effluent, fouling and UV light

• Electronic ballasts are housed right in the module, reducing the system footprint, minimizing installation time and costs, and eliminating the need for separate external cabinets

• Ballast enclosures are rated TYPE 6P (IP67) – air/water tight

• Module leg and lamp connector have a hydrodynamic profile to reduce headloss

• The variable-output, electronic ballast is mounted in an enclosure integrated within the module frame

• Wiring is pre-installed and factory-tested

• Cooling ballasts by convection eliminates costs associated with air conditioning and forced-air cooling

Advanced, Self-Contained UV ModuleDramatically reduces footprint size and eliminates costs of air conditioning

Module leg and lamp connector have a hydrodynamic profile to reduce headloss and potential for debris fouling.

8

Module-mounted ballasts allow for compact installation, convection cooling, and protect wires and cables from exposure to effluent and UV light.

• TrojanUV3000Plus™ lamps are warranted for 12,000 hours

• Modular design allows for maintenance on one module without disrupting disinfection performance

• Maintenance limited to replacing lamps and cleaning solution

• Automated ActiClean™ cleaning system reduces manual labor associated with cleaning sleeves

Trojan UV lamps are easily replaced in minutes without the need for tools.

Quick connect allows for easy refill of ActiClean™-WW Gel.

Designed for Easy Maintenance

System SpecificationsSystem Characteristics TrojanUV3000Plus™

Typical Applications Wide range of wastewater treatment plants

Lamp Type High-efficiency Amalgam

Ballast Type Electronic, variable output (60 to 100% power)

Input Power Per Lamp 250 Watts

Lamp Configuration Horizontal, parallel flow

Module Configuration 4, 6 or 8 lamps per module

Level Control Device Options ALC, fixed weir or motorized weir gate

Water Level Sensor 1 electrode low water level sensor per channel

Enclosure Ratings:

Module Frame / Ballast Enclosure TYPE 6P (IP68) / TYPE 6P (IP67)

All Other Enclosures TYPE 4X (IP56)

Ballast Cooling Method Convection; no air conditioning or forced air required

Installation Location Indoor or outdoor

Sleeve Cleaning System:

ActiClean™ Cleaning System Optional Automatic Chemical/Mechanical Cleaning System

ActiClean™-WW Gel Non-corrosive, operator-friendly

Recommended Fouling Factor 1.0

System Control Center:

Controller Microprocessor or PLC-based

Analog Inputs (Typical) Flow (4-20 mA) and UVT (4-20 mA)

Discrete Outputs (Typical) Bank status, common alarms and SCADA communication

Maximum Distance from UV Channel 500 ft. (152 m)

Electrical Requirements:

Power Distribution Center 208Y/120V, 3 phase, 4 wire + GND, 60 Hz (Max. 8 modules per PDC)480Y/277V, 3 phase, 4 wire + GND, 60 Hz

380Y/220V, 3 phase, 4 wire + GND, 50/60 Hz 400Y/230V, 3 phase, 4 wire + GND, 50/60 Hz 415Y/240V, 3 phase, 4 wire + GND, 50/60 Hz

System Control Center (stand alone) 120V, single phase, 2 wire + GND, 60 Hz, 1.8 kVA220/230/240V, single phase, 2 wire + GND, 50/60 Hz, 1.8kVA

Hydraulic System Center (for ActiClean™) 208V, 3 phase, 3 wire + GND, 60 Hz 380/400/415 V, 3 phase, 3 wire + GND, 50/60 Hz

480 V, 3 phase, 3 wire + GND, 60 Hz or

2.5kVA HSC powered from PDC

Water Level Sensor 24VDC powered from PDC

Find out how your wastewater treatment plant can benefit from the TrojanUV3000Plus™ – call us today.

Head Office (Canada)3020 Gore Road London, Ontario, Canada N5V 4T7Telephone: (519) 457-3400 Fax: (519) 457-3030 www.trojanuv.com

The products described in this publication may be protected by one or more patents in The United States of America, Canada and/or other countries. For a list of patents owned by Trojan Technologies, go to www.trojanuv.com.

Printed in Canada. Copyright 2011. Trojan Technologies London, Ontario, Canada.No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means without the written permission of Trojan Technologies.MWW (0512)

Budget Proposal

Ulster, NY WWTP

prepared for:

Arcadis Emily Carlson

June 24, 2019

Xylem Water Solutions USA, Inc. 14125 South Bridge Circle Charlotte, NC 28273

June 24, 2019 Arcadis Emily Carlson Project Name: Ulster, NY WWTP Project Number: J16080184021 Revision Number: 2 Ms. Carlson: We are pleased to submit the following proposal for the Ulster, NY WWTP UV opportunity based on the information provided within your inquiry. The TAK Smart system is an open channel process which provides many benefits that improve the performance of the system and increase the lifespan of the equipment. We would like to highlight a few key items with our proposal provided:

Industry Leading Technology - Our system includes our latest low-pressure, high-intensity ECORAY lamps that have a guaranteed life of 14,000 hours and are more efficient. These lamps are extremely robust and easy to remove and replace.

True "intensity based" dose pacing control - WEDECO is unique in the marketplace by taking into account real-time sensor readings of UV intensity, as a function of lamp output, aging and sleeve fouling. This is combined with real-time UV transmittance data to offer true dose pacing for all effluent conditions. Knowing that flows and water quality constantly vary, this system provides the end user with power savings and prevents over-dosing, allowing us to ensure that the UV system will meet permit at a wide variety of water qualities.

Even Flow Distribution - The system is equipped with a hydraulic baffle plate upstream of each channel that is used to promote even flow distribution throughout the channel, which improves disinfection by creating equal flow paths and eliminating dead zones.

Automatic Wiping System - Pneumatically driven automatic wiping system that prevents fouling of the quartz sleeve with very easy replacement of wipers.

Remotely Located Ballast Enclosures - WEDECO’s ballasts are located in a separate enclosure which allows for easy accessibility to electronics, and eliminates the risk of flooding any electronics.

TotalCare - WEDECO’s established and proven TotalCare Program provides our customers with proactive services all designed to minimize the cost of ownership to operate and maintain a UV system. TotalCare services can provide our customers with system health checks, efficiency audits, training and preventative maintenance contracts.

Please refer to our local representative Dave Boshart of GP Jager, (315) 256-3071 or us if you have any questions. We look forward to working with you on this exciting project. Sincerely, Julia Beilsmith Bill Mattfeld Territory Manager Senior Application Engineer (954) 483-8563

Ulster, NY Page 4 of 11 Date: June 24, 2019 Revision no.: 0

Table of Content

1 Xylem Overview ........................................................................................................ 5

2 General Process Description .................................................................................. 7

2.1 Design ........................................................................................................................ 7 2.2 Process Description ................................................................................................... 7

3 Technical Description .............................................................................................. 8

4 Price & Scope of Supply .......................................................................................... 9

4.1 Wedeco Scope of Supply ........................................................................................... 9 4.2 Budget Price .............................................................................................................. 9

5 Commercial Terms & Conditions .......................................................................... 10

6 Attachments ............................................................................................................ 11

6.1 Brochures / Drawings / others .................................................................................. 11


1 Xylem Overview

Xylem is a leading global water technology provider, enabling customers to transport, treat, test and efficiently use water in public utility, residential and commercial building services, industrial and agricultural settings. The company does business in more than 150 countries through a number of market-leading product brands, and its people bring broad applications expertise with a strong focus on finding local solutions to the world’s most challenging water and wastewater problems.

Xylem’s treatment business offers a portfolio of products and systems designed to effectively meet the demands and challenges of treating water and wastewater. From smarter aeration to advanced filtration to chemical-free disinfection, Xylem leverages its well-known Treatment brands, Flygt, Leopold, Sanitaire, and Wedeco, to offer hundreds of solutions backed by a comprehensive, integrated portfolio of services designed to ensure we can meet our customers’ needs in a number of different industries including municipal water and wastewater, aquaculture, biogas and agriculture, food and beverages, pharmaceuticals, and mining.

Our scientists and engineers utilize their deep applications expertise and continually listen and learn from our customers’ situations to create solutions that not only use less energy and reduce life-cycle costs, but also promote the smarter use of water.

Wedeco has accepted the challenge of the 21st century. With the Wedeco brand for UV Disinfection, ozone oxidation & AOP solutions, we own the advanced technologies for chemical-free and environmentally friendly treatment of drinking water, wastewater and process water as well as further industrial treatment processes. We

constantly invest a large portion of our energy in the development of high-tech components, systems and equipment, as well as in the study of new areas of application for UV, ozone & AOP. In doing so, we have always given special attention to the increase in energy efficiency of our Products equipped with our unique UV lamps and ozone electrodes.


The special characteristics of the Wedeco Ecoray UV lamp are its special doping and the unique long-life coating. Because of these futures, a constantly high UV light yield is achieved with a substantially extended lamp service life at the same time. In addition, by using this technology it is not necessary to apply liquid mercury inside the lamp. Wedeco UV lamps cannot be surpassed in economic efficiency.

In relation to expenditure of energy, the High-Intensity/Low-Pressure Technology provides a light yield three times higher than comparable UV lamps of widely used Medium Pressure Technology. A higher light yield also means a lower heat generation at the same time. Thanks to this, Wedeco UV lamps become less susceptible to varying water temperatures. Even the formation of deposits on the quartz sleeves as well as lamp aging is considerably lower than with alternative UV lamp technologies in Herford and Essen.

Xylem's Wedeco ozone systems combine maximum flexibility and reliable operating characteristics for small to large ozone capacities. The ozone generator system and control unit can be combined and supplemented with option sets that allow for various application requirements. Effizon evo 2G ozone electrodes are the core of our technology and achieve an unmatched level of reliability and energy efficiency. The electrodes are manufactured completely from inert materials, without the need for fuses or

coatings, making them highly resistant to corrosion. This means that the Wedeco ozone generators are practically maintenance free with no need for regular cleaning or replacement of the electrodes. We rely on consistently high-quality standards in all divisions of the company. Moreover, product quality and manufacturing operations are constantly monitored and optimized in continuous improvement processes. Established quality controls give Xylem and you the security of knowing that Wedeco UV, Ozone & AOP systems will always operate reliably. For more information please visit us at http://www.xylem.com/treatment/

WEDECO Effizon® evo 2G Ozone electrode

WEDECO Ecoray UV lamp


2 General Process Description

2.1 DESIGN

Design Flow Rates - Peak Design Flow 4.6 MGD

Total Suspended Solids (Maximum) 5 mg/l 5-day B.O.D. 25 mg/l Allowable Effluent Temperature Range 41-86°F UV Transmittance at 253.7 nm 65%, minimum Maximum Influent Fecal Coliforms Count 100,000 Fecal Coliforms/100 mL Effluent Disinfection Standard

- Fecal Coliforms (30 day geometric mean) <200 Fecal Coliforms/100 mL - Fecal Coliforms (7 day geometric mean) <400 Fecal Coliforms/100 mL

UV Dose

- Minimum Design UV Dose (based on calculated PSS dose)

>60 mJ/cm²

2.2 PROCESS DESCRIPTION

The proposed UV system is based on an influent quality that meets the above listed criteria and requires that all wastewater to be disinfected has undergone prior treatment through Rotating Biological Contactors (RBCs) and a final settling tank.


3 Technical Description

CONFIGURATION: TAK Smart 4-3x2i1

DESCRIPTION UNITS VALUE

Total Number of lamps

Number of channels

Number of banks per channel

Number of modules per bank

Number of lamps per module

48

1

2

3

8

CHANNEL DIMENSIONS:

Width along UV banks

Width along weir

Design water depth @ influent

Overall channel height & length

Inches

28.0

As shown in drawing

18.5

As shown in drawing

HEADLOSS (at peak flow):

Across baffle plate

Across UV system

Across level control

Allowable freefall

Total Headloss

Inches

2

2.6

1.2

4

9.8

POWER CONSUMPTION:

Peak Flow Lamp and Ballast Power

kW

16.49


4 Price & Scope of Supply

4.1 WEDECO SCOPE OF SUPPLY All required UV modules fully equipped with lamps and quartz sleeves Supports to install modules in concrete channel 14.8 ft (4.5 m) fully assembled quick disconnect power cabling from modules to ballast cabinet Electrical Control 48 housing the electrical equipment:

Painted Steel Type 12 w/fan cooling (<104 deg F) WEDECO EcoTouch Touchscreen HMI Power supply requirements: 480 V, 3 phase, 4 wire + ground (wye) Automatic wiping system including compressed air supply Optidose Dose Pacing UV intensity sensor (one per bank) SCADA Communication Labeling of components Inlet baffle plate Fixed finger weir Spare parts: 2 lamps, 2 quartz sleeves, 4 wiper rings, and 1 ballast Three (3) operating and maintenance manuals in English language Factory testing of all parts and equipment prior to shipment Packaging of UV equipment Recommended manufacturer’s field services on site [1 trip / 3 days]

4.2 BUDGET PRICE

TAK Smart Standard Equipment

Total $112,000


5 Commercial Terms & Conditions

Commercial Details

Submittal time: 8 weeks after approved purchase order

Delivery time: 18 weeks after approved submittals

Terms of Delivery: All prices are FCA factory with full freight allowed to the job site.

Terms of Payment:

This proposal is based upon WEDECO’s General Terms of Business. Price is based upon the following payment terms (net 30 days):

10% net 30 days upon initial submittal of mechanical/electrical drawings for approval

80% net 30 days from the date of the respective shipments of the product

5% installation of the Xylem equipment, NTE 150 days after shipment

5% start-up / training on the Xylem equipment, NTE 180 days after shipment

Warranties:

Lamp Warranty: Guaranteed 14,000 hours of operation, prorated after 9,000 hours.

System Warranty: 18 months from date of delivery or 12 months from date of substantial completion of UV equipment whichever comes first.

Xylem, Inc. www.xylem.com/treatment

6 Attachments

6.1 BROCHURES / DRAWINGS / OTHERS

TAK SMART GENERAL NOTES:

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A0

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%%uExample anchor bolt fixing:

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Max. torque = 15 Nm

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Save working up to 120kg

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Tested 150kg

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OSP-P40-760

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Lifting frame

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Finger weir

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Baffle plate

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Wiping system

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0,000m

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UV module

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0,584m(1.916')

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Electrical cabinet

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0,470m (1.542') TWL(nominal)

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865m(2.838')

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max.0,339m (1.112')

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Painted sheet steel

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Notes

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TYPE 12 /IP55

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ASTM304 (1.4301)

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TAK SMART 4-3X2 PARTS LIST

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Item

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Description

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stainless steel

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TYPE 4X /IP54 with AC

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Protective channel cover

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By Others

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TAK 4-3

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Six per UV system

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stainless steel

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Chkd.

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Title:

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Article-ID:

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Measurements without tolerances

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according to ISO 2768- 1m/2K

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Surface according to

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DIN ISO 1302 Reihe 2

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Weight:

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Material :

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Project:

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Drawing-Nr.:

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Proprietary notice pursuant to DIN ISO 16016 to be observed!

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Xylem Water Solutions Herford GmbH

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Boschstr. 4 - 14, 32051 Herford, Germany

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Tel. +49 5221 930-0, Fax +49 5221 930-222

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[email protected]

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www.xyleminc.com

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U-81459

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TAK SMART 4-3x2

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GENERAL ARRANGEMENT DRAWING

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TAK SMART CONCRETE CHANNEL

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D. RAYMOND

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July. 2012

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NTS

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cable length

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DIR

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Cabinet Height

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Finger Weir

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TAK 4-3

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Anchor bolt

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notch in floor (Optional)

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Channel cover must be notched for bank supports

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Max. flow

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750 m³/h

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3302 GPM

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PLAN VIEW

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channel covers

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power and controls

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1. The dimensions given on this drawing are required to ensure correct installation operation and performance of the WEDECO UV equipment. All Modifications from this drawing must be approved by WEDECO. 2. The most Critical dimensions are channel width, module placement, and weir height. Installing contractor must ensure channel is level ( ± 5mm (3/16") across entire width and length. Bottom of uv channel must be flat within ±3mm (1/8") and channel walls to be perpendicular to bottom of channel within ±3mm (1/8"). 3. All site related design, labor and materials to be provided by others per contract documents. To meet general anchor bolt requirement, concrete installation and quality shall meet or exceed ACI 318 / DIN1045 -B35. 4. All civil tolerances are ± " (6 mm) unless otherwise shown. 14" (6 mm) unless otherwise shown. 5. Type 12/IP55 (fan cooled) Electrical enclosure to be located in a climate controlled building (supplied by others). Ambient temperature 10°C to 40°C (50°Fto 104°F). Type 4X /IP56 enclosure fan cooled, optional. Ambient temperature 10°C to 40°C (50°Fto 104°F). Type 4X /IP54 enclosure with AC optional. Ambient temperature 10°C to 50°C (50°F to 122°F). 6. Before installation of the UV equipment, channel & piping must be clean of debris. Objects like sand or stones may damage to UV lamps. 7. All flow isolation is supplied by others if required. 8.) ALL field wiring and conduits required to connect power and controls to the electrical enclosure and the air compressor shall be sized, supplied, and installed by others. See single line diagram & conduit schedule for additional details. All governing Local/state and national electrical codes/regulations apply (for example but not limited to state, local, CE, NEC, cUL ). 9.) Lifting device by customer . 10. ALL equipment shall be located in accordance with all state local, and national electrical codes and per dimensions shown on General Arrangement drawing. 11) Instrument quality compressed air required for the wiping system. Wiping requirements are 2.5 LPS (5.3 CFM) @ 4.5-5.5BAR (65-80 PSI). LPS (5.3 CFM) @ 4.5-5.5BAR (65-80 PSI). Compressors optional. 400/480V power connection available in UV control panel for Air compressor. For air compressors with other voltage requirements (optional), power supply is by customer. 12.) Protect your eyes and skin against UV light. Extended exposure causes sun burn and eye irritation. 13) Field assembly of channel components required. All supporting materials, Anchors, hardware, labor and design are supplied by others. All concrete to stainless steel joints of Weir must be sealed water tight by installing contractor. Total Weir and module assemblies must be level (± 2mm (1/16") across entire length and width. ") across entire length and width. 14) The inlet and outlet areas and all piping designed and sized by others. At The inlet and outlet areas and all piping designed and sized by others. At maximum design flow a 100mm (4") free space must be maintained between the top of the weir and the top effluent level in the outlet chamber.

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Crane & chain or cable by others

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All rights reserved. This document is confidential, proprietary and copyrighted.

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It shall not be reproduced, disseminated or otherwise made available to third

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parties or otherwise used without prior written consent.

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Unlawful use - also in parts or in revised form - may be pursued under civil criminal law.

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%%UCONFIDENTIAL AND PROPRIETARY:

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%%C28mm (1.13")&%%C47mm(1.8"); 4.5 meter (14.75') long

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Two Flexible conduits Per Module to enclosure

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[Orange Lamp cable length 5 meter (16.4')]

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Optional conduits 9.5&14.5 meter (31'&49')

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[Orange Lamp cable 10&15 meter (32.8'&49.2')]

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Cabinet service area 1.2M (4') in front of door 1M (3.3') sides & back depends on options selected See Cabinet drawing for details

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www.ovivowater.com 1.855.GO.OVIVO

Capable of mixing viscous fats, oils and greases

Ragless design and low cost maintenance

Significant energy savings compared to conventional mixing systems

Installation and Capital cost savings

Suitable for both new and existing tanks

EFFICIENT LOW ENERGY SLUDGE MIXING

LM™ MIXER

MUNICIPAL WATEWATERANAEROBIC DIGESTION

Proven to achieve over 90%

active tank volume! Give us a call at

1.855.GO.OVIVO to learn more.

https://www.youtube.com/watch?v=Ogim5aW4xfI

Anaerobic Digestion is highly dependent upon effective sludge mixing. When tank content is inadequately mixed, stratification occurs and the tank volume is not properly utilized. Most wastewater treatment facilities require thorough and complete mixing to ensure uniform temperature, solids distribution and microorganism contact with incoming sludge, to increase gas production and maximize the solids destruction.

• Efficient mixing is critical; therefore, the goal is to achieve the optimal mixing efficiency with the least amount of power.

• Achieving a unique mixing pattern allows for efficient mixing while keeping the energy requirements lower (allowing for the amount saved to be used elsewhere at the plant).

• Independent full scale testing has proven the lower energy needs compared to conventional mixing systems.

ANAEROBIC DIGESTION

LESS HP, MORE SAVINGS

MAJOR ENERGY SAVINGS

LM™ MIXER

ENGINEERINGDESIGNED FOR PERFORMANCE

Drive System

Drive Support

Mixer Flange

Seal Tube

Shaft

Hydro-Disk

MAIN CONFIGURATIONS FOR THE LM™ MIXER:

• Operating Speed: 30 CPM (cycles per minute)

• Stroke Length: 12 inches, 16 inches or 20 inches

• Disk Size: 72 inches, 84 inches or 96 inches

Motor Size 1 Year 5 Years 10 Years 20 Years

10HP $4,409 $25,558 $59,258 $159,275

90HP $39,684 $230,023 $533,319 $1,433,471

Difference $35,275 $204,465 $474,061 $1,274,197

Assuming $ 0.09/kWh, 75% nameplate power and 3% appreciation per year

HOW IT WORKSUNIFORM MIXING

KEY BENEFITS

MUNICIPAL WASTEWATER | ANAEROBIC DIGESTION

The LM™ mixer is designed to mix the viscous slurries in order to achieve a homogeneous mixture in the tank while using less energy at the same time. The LM mixer offers solutions to the challenges of mixing wastewater in both thin and thick sludge applica-tions.

The frequency, stroke and size of the hydro-disk control the force and velocity of the liquid core. The LM mixer’s oscillating motion produces a flow pattern that approaches nearly isotropic (uniform) mixing and does not display the turbulence intensity or vortices of rotary mixers. Additionally, LM mixers operate by using pulsating pressure waves in conjunction with the oscillating velocity. In this type of concurrent action the oscillating pres-sure wave and velocity are coupled together to enhance mass transfer and produce a uniform mixture of the tank’s contents.

Each tank configuration is different and therefore the LM mixer is custom designed to meet a variety of mixing demands by varying the frequency, stroke and disk size. Utilizing the pow-er of Computational Fluid Dynamics (CFD), tanks can be modeled and analyzed for proper mixer sizing.

EFFICIENT MIXING TO HELP IMPROVE THE DIGESTION PROCESS

• Does not rely on induced flow to create the necessary mixing.

• Rags do not build up on disk

• Uniform mixing throughout the tank

PROVEN TECHNOLOGY

• Multiple LiCl tests performed by third parties demonstrate an active volume of 90% or greater.

INSTALLATION COST SAVINGS

• Installation of a single mixer can be completed in a day or less.

• No additional piping needed.

• No core drilling necessary

SUITABLE FOR BOTH NEW AND EXISTING TANKS

• Little to no changes are needed on existing structures

LEARN MORE!Scan to view online.

1.855.GO.OVIVO

[email protected]

2015 © Ovivo Inc. All rights reserved

Ovivo® ConnectSM portal is an innovative and intuitive application that allows our customers to use ‘SmartTags’ installed on our equipment (or a web URL) to access a personalized customer zone. Access your equipment documentation, find contract references, track service logs, manage spare parts, and plan your next maintenance to get the most out of your equipment.

NEED ACCESS TO YOUR O&M MANUAL? NEED SPARE PARTS? WANT THE LATEST TIPS AND NEWS ON YOUR ASSET?

GET CONNECTED!ovivo.co

LM™ MIXER

OUR EXPERTISEAnaerobic Digestion is highly dependent upon effective sludge mixing. Ovivo sludge mixers are designed to provide powerful mixing, without accumulating stringy or fibrous material. Highly efficient and featuring low maintenance requirements, they can be used for existing or new digesters. Their configuration is adpated to suit best the specific tank design and application.

ANCILLARY EQUIPMENTOvivo can supply all plant required equipment for a complete Sludge Treatment / Anaerobic Digestion plant, including but not limited to:

• Ultrastore™ Membrane Gasholder• Eimix® Mechanical Sludge Mixer• Ovivo® Anaerobic Digester Steel Cover• Sonolyzer™ Ultrasound Sludge Disintegrator

THE OVIVO DIFFERENCE 200+ YEARS OF HERITAGE • 100% FOCUSED ON WATER

GT 330 A

COMMERCIAL AND INSTITUTIONAL

88%+ Efficiency

Near Condensing Eutectic Cast Iron - Water Temperature Supply @ 86°F

Operates under large Temperature Differentials - Up to 81°F without Thermal Shock

Low NOx Compatibility

Maximum Working Pressure 90 p.s.i.

Innovative Design

For Better Fuel

Efficiency

A Symbol of Quality

Engineering For Over

Three Centuries

www.dedietrichboilers.com

EUTECTIC CAST IRON BOILERS

GT 330 AHigh Performance Low-Temperature Return Eutectic Cast Iron Boilers

Low Return Water Capability

Maximizes Energy Savings

The GT 330 A Series is a eutectic cast iron 3-pass, high efficiency, large net output, low

operating temperature, designed boiler. These boilers are specifically designed for oil / gas /

propane firing.

The GT 330 A is equipped with a simplified control panel with built-in on/off limit, high limit,

manual reset limit and temperature gauge.

The GT 330 A is a Three Pass Design with

large combustion chamber and horizontal flue

passes with fins. The heat transfer is

enhanced by the fins and eutectic cast iron

baffles. This body design assures:

Efficiency up to 88%

Low pressure drops

Low noise level

High thermal efficiency and heattransfer

Low Water Outlet Temperature down to

85°F with indoor/outdoor reset achieves

significant energy savings by reducing

stand-by fuel consumption. In addition, it’s not

necessary to maintain boiler temperature

between the two heating cycles, which further

reduces fuel consumption and achieves

excellent overall efficiency. Studies show

substantial savings over retrofit boilers and

over new competitive models.

Easy Cleaning with Hinged Door for

burner and flue access. Doors can be hinged

right or left based on your access needs.

Boiler is easily cleaned and vacuumed,

resulting in lower maintenance costs.

Eutectic Cast Iron boiler body provides

exceptional resistance to temperature

variations and thermal stress. De Dietrich’s

eutectic cast iron is 30% more flexible than

any competitive cast iron allowing safe low

temperature operation.

Four Inch Insulation featuring reinforced

fiberglass wool. De Dietrich Boilers feature

double insulation of the boiler front which

minimizes heat loss and allows reduced

stand-by consumption and improved thermal

efficiency.

Control Panel. The standard control panel

supplied is designed for heating only. The

panel is equipped with a boiler thermometer,

on/off limit, high limit and manual reset limit.

The large size permits it to be integrated

easily with third party energy management

systems.

Standard Equipment

Eutectic Cast Iron Nipples

Built-in High Limit with ManualReset

Thermocord Combustion Sealed

On/Off Limit

Temperature Indicator

ASME Relief Valve

Low Water Cut-Off

Low NOx Burners (optional)

Factory Assembly (optional)

Contact your local De Dietrichrepresentative for a list of availableburners.

Thermocord & Groove

system eliminates

gaskets - the number

one cause of boiler

maintenance

De Dietrich “eutectic”

cast iron delivers 30%

more flexibility, providing

the industry’s best

thermal shock resistance

Flexible eutectic cast

allows 85°F supply water

capability. This low

temperature operation

yields significant fuel

savings

TH!NK BOILERS... TH!NK

GT 330 AHigh Performance Low-Temperature Return Eutectic Cast Iron Boilers

Large wiring duct

leading to the control

panel

Flue nozzle with two

cleaning traps directly

accessible without

dismantling the casing

Large flue-ways with

fins and turbulators

offering high efficiency

and easy maintenance

Boiler body with

3-pass flueways

Large size combustion

chamber

Design of the front section is

adapted for the use of low

NOx burners

Front return (optional)

Hinged burner

door (right or left

hand side)

Flame observation

window

Removable turbulators

2” thick ceramic fiber

insulated cleaning door

Eutectic cast iron boiler body, thermal shock

and corrosion resistant, allowing low modulated

temperature operation and complete stop

between heating periods

Completely insulated

boiler body with four

inch thick fiberglass

wool

Hinged cleaning door

(right hand or left hand

side)

Silicon wrapped ceramic

thermocord assures flue

gas tightness

Well for sensors

Control panel designed to

enable easy wiring

connections

Setting the Benchmark for Low-Temperature

Near-Condensing Eutectic Cast Iron Boilers

Ceramic insulated burner

door 3” to 4-7/8” thick

MEA 304-06-M (City of New York)

As the Boiler Should Be!!!

®

® C US

Notes:

- Approved for direct-vent applications - use only approved venting components as listed

- Natural draft applications, approved for Type L vent [Gas-Oil] or Type B Vent [Gas only]

- All model comply with latest Canadian & USA standards

- Outputs are rounded off. 85.2% efficiency is the published efficiency (oil is +3%)

Represented By:

(2)

(1) (1)

31.5“[800mm]

46.9

”[1

192m

m]

4”[103mm]

4”[103mm]

23.39”[594mm]

5.39

”[1

37m

m]

15.2

4”[3

87m

m]

6”[153mm]

2.1”[53mm]

3.86”[98mm]

6”[153mm]

12.79”[325mm]

28.27”[718mm]

1.97”[50mm]

7.68”[195mm]

4.13”[105mm]

6.3”[160mm]

4.53

”[1

15m

m]

5.39

”[1

37m

m]

40”

[101

7mm

]

32.5

6”[8

27m

m]

29”[738mm]

51”

[129

7mm

]

5.12”[130mm]

4.13

”[1

05m

m]

6.5”[165mm]

GT 334A GT 335A GT 336A GT 337A GT 338A GT 339A

L 30 [991] 45.3 [1151] 51.6 [1311] 57.9 [1471] 64.2 [1631] 70.5 [1791]

P 19.3 [490] 25.6 [650] 31.9 [810] 31.2 [970] 44.5 [1130] 50.8 [1290]

ØR 7.1 [180] 7.1 [180] 7.1 [180] 7.9 [200] 7.9 [200] 7.9 [200]

(1) Adjustable feet: basic dimension 0, adjustment possible: 0 to 1.57” [40mm] 1. Sludge removal hole Ø Rp 2 ½” (plugged)2. Rp 1½ socket for the safety control unit3. Heating outlet (clamp + counter flange withcollar to be welded) Ø 2½” (Ø 2” option)4. Heating return (clamp + counter flange withcollar to be welded) Ø 2½” (Ø 2” option)5. Rp 1½” draining outlet (plugged)

Model

Item Unit GT 334A GT 335A GT 336A GT 337A GT 338A GT 339A

CSA - Gas InputMBH 404 598 808 1,024 1,226 1,442

Kw 118 175 237 300 359 423

CSA - #2 Fuel Oil Input US/GPH 2.8 4.15 5.6 7.1 8.5 10

CSA - Output [Gas-Oil]MBH 344 510 688 872 1,044 1,229

Kw 100.8 149.4 201.6 255.7 306.1 360.1

Cast Iron Sections # 4 5 6 7 8 9

Water Resistance

Delta T=(°F)

18 (°F) Ft Water 0.483 1.026 2.099 3.055 4.380 6.332

27 (°F) Ft Water 0.210 0.457 0.933 1.358 1.945 2.818

36 (°F) Ft Water 0.121 0.256 0.525 0.764 1.094 1.583

MAWP [Water] PSI ASME IV Rating Class 30 - (90 psi)

S3NAPanel Electrical Connection V/P/H 120/1/60

Max. Water Temp.

Safety Limit [MR](°F) 248

(°C) 120

Water operating Temp.

Range(°F) 86-185

(°C) 30-85

Gas-vent category # I, II, III or IV

Boiler-vent connection inch 7 7 7 8 8 8

Boiler weight [dry]LB 1,349 1,623 1,865 2,163 2,432 2,712

Kg 612 736 846 981 1,103 1,230

TH!NK BOILERS... TH!NK

Toll Free: (800) 943-6275www.dedietrichboilers.com

Due to ongoing and continuous product improvements, DDR Americas Inc. reserves all rights to amend and delete information provided on this product specification table.

11-26-09

APPENDIX C

Historical Energy Costs

Town of Ulster

Analysis of Electrical Usage UWWTP

As of March 15, 2019

Invoice Usage Demand Rate Blended Rate

($) (kWh) (kW) ($/kWh) ($/kWh)

Central Hudson 1/9/2013 2/5/2013 2855.99 92960 172.8 0.03072

Direct Energy 1/9/2013 2/5/2013 9633.32 92960 0.10363 0.13435

Central Hudson 2/5/2013 3/8/2013 2349.77 81600 169.6 0.02880

Direct Energy 2/5/2013 3/8/2013 7361.17 81600 0.09021 0.11901

Central Hudson 3/8/2013 4/5/2013 1816.62 71360 166.4 0.02546

Direct Energy 3/8/2013 4/5/2013 4674.37 71360 0.06550 0.09096

Central Hudson 4/5/2013 5/6/2013 2642.3 86880 169.6 0.03041

Direct Energy 4/5/2013 5/6/2013 5054.78 86880 0.05818 0.08859

Central Hudson 5/6/2013 6/4/2013 3092.68 102080 179.2 0.03030

Direct Energy 5/6/2013 6/4/2013 6293.17 102080 0.06165 0.09195

Central Hudson 6/4/2013 7/8/2013 2924.96 111360 190.4 0.02627

Direct Energy 6/4/2013 7/8/2013 6504.76 111360 0.05841 0.08468

Central Hudson 7/8/2013 8/6/2013 3369.67 105760 184 0.03186

Direct Energy 7/8/2013 8/6/2013 7573.3 105760 0.07161 0.10347

Central Hudson 8/6/2013 9/4/2013 3060.02 99360 174.4 0.03080

Direct Energy 8/6/2013 9/4/2013 5567.07 99360 0.05603 0.08683

Central Hudson 9/4/2013 10/3/2013 3219.13 99040 168 0.03250

Direct Energy 9/4/2013 10/3/2013 5476.72 99040 0.05530 0.08780

Central Hudson 10/3/2013 11/1/2013 3177.68 96320 166.4 0.03299

Direct Energy 10/3/2013 11/1/2013 5070.74 96320 0.05264 0.08564

Central Hudson 11/1/2013 12/5/2013 2942.11 108480 168 0.02712

Direct Energy 11/1/2013 12/5/2013 6226.36 108480 0.05740 0.08452

Central Hudson 12/5/2013 1/8/2014 3304.01 110080 171.2 0.03001

Direct Energy 12/5/2013 1/8/2014 7749.63 110080 0.07040 0.10041

Central Hudson 1/8/2014 2/7/2014 3165.16 101600 172.8 0.03115

Direct Energy 1/8/2014 2/7/2014 7152.64 101600 0.07040 0.10155

Central Hudson 2/7/2014 3/7/2014 2336.66 95840 172.8 0.02438

Direct Energy 2/7/2014 3/7/2014 6747.14 95840 0.07040 0.09478

Central Hudson 3/7/2014 4/3/2014 2489.72 91200 174.4 0.02730

Direct Energy 3/7/2014 4/3/2014 6420.48 91200 0.07040 0.09770

Central Hudson 4/3/2014 5/1/2014 2819.99 95520 172.8 0.02952

Direct Energy 4/3/2014 5/1/2014 6724.61 95520 0.07040 0.09992

Central Hudson 5/1/2014 6/2/2014 3479.23 110720 171.2 0.03142

Direct Energy 5/1/2014 6/2/2014 8645.77 110720 0.07809 0.10951

Central Hudson 6/2/2014 7/3/2014 2915.29 106080 177.6 0.02748

Direct Energy 6/2/2014 7/3/2014 8410.94 106080 0.07929 0.10677

Central Hudson 7/3/2014 8/6/2014 3479.09 122720 187.2 0.02835

Direct Energy 7/3/2014 8/6/2014 9630.38 122720 0.07847 0.10682

Central Hudson 8/6/2014 9/3/2014 2892.87 95040 169.6 0.03044

Direct Energy 8/6/2014 9/3/2014 7534.47 95040 0.07928 0.10972

Central Hudson 9/3/2014 10/7/2014 3329.61 113280 171.2 0.02939

Direct Energy 9/3/2014 10/7/2014 9018.98 113280 0.07962 0.10901

Central Hudson 10/7/2014 11/3/2014 3123.99 92000 169.6 0.03396

Direct Energy 10/7/2014 11/3/2014 7247.43 92000 0.07878 0.11273

Central Hudson 11/3/2014 12/5/2014 2495.96 72800 129.6 0.03429

Direct Energy 11/3/2014 12/5/2014 5765.85 72800 0.07920 0.11349

Central Hudson 12/5/2014 1/8/2015 1805.5 76800 131.2 0.02351

Direct Energy 12/5/2014 1/8/2015 5628.89 76800 0.07329 0.09680

LIME 2/18/2015 2/18/2015 4801.15 0 0 0.00000 0.00000

Central Hudson 1/8/2015 2/3/2015 2117.83 69280 147.2 0.03057

Direct Energy 1/8/2015 2/3/2015 5050.89 69280 0.07291 0.10347

Central Hudson 2/3/2015 3/9/2015 2740.96 89440 139.2 0.03065

Direct Energy 2/3/2015 3/9/2015 6520.48 89440 0.07290 0.10355

Central Hudson 3/9/2015 4/6/2015 1934.98 71040 129.6 0.02724

Direct Energy 3/9/2015 4/6/2015 5320.84 71040 0.07490 0.10214

Central Hudson 4/6/2015 5/7/2015 3195.33 103520 171.2 0.03087

Direct Energy 4/6/2015 5/7/2015 7789.19 103520 0.07524 0.10611

Central Hudson 5/7/2015 6/4/2015 3289.62 95200 164.8 0.03455

Direct Energy 5/7/2015 6/4/2015 7617.12 95200 0.08001 0.11457

Central Hudson 6/4/2015 7/7/2015 3189.11 113920 184 0.02799

Direct Energy 6/4/2015 7/7/2015 9075.51 113920 0.07967 0.10766

Central Hudson 7/7/2015 8/4/2015 2996.6 98400 176 0.03045

Direct Energy 7/7/2015 8/4/2015 7656.37 98400 0.07781 0.10826

Central Hudson 8/4/2015 9/1/2015 2786.96 95200 172.8 0.02927

Direct Energy 8/4/2015 9/1/2015 7484.01 95200 0.07861 0.10789

Central Hudson 9/1/2015 10/2/2015 3163.47 108320 190.4 0.02920

Direct Energy 9/1/2015 10/2/2015 8529.98 108320 0.07875 0.10795

Central Hudson 10/2/2015 11/3/2015 3140.07 114080 176 0.02753

Direct Energy 10/2/2015 11/3/2015 8969.56 114080 0.07863 0.10615

Central Hudson 11/3/2015 12/4/2015 2689.26 85600 161.6 0.03142

Direct Energy 11/3/2015 12/4/2015 6582.1 85600 0.07689 0.10831

Central Hudson 12/4/2015 1/5/2016 1941.5 70080 126.4 0.02770

Direct Energy 12/4/2015 1/5/2016 5508.29 70080 0.07860 0.10630

Central Hudson 1/5/2016 2/2/2016 1994.58 71200 142.4 0.02801

Direct Energy 1/5/2016 2/2/2016 5596.32 71200 0.07860 0.10661

Central Hudson 2/2/2016 3/3/2016 1786.2 67200 124.8 0.02658

Direct Energy 2/2/2016 3/3/2016 5281.92 67200 0.07860 0.10518

Central Hudson 3/3/2016 4/1/2016 2193.98 62400 128 0.03516

Direct Energy 3/3/2016 4/1/2016 4904.64 62400 0.07860 0.11376

Central Hudson 4/1/2016 5/3/2016 2657.37 95520 171.2 0.02782

Direct Energy 4/1/2016 5/3/2016 7507.87 95520 0.07860 0.10642

Central Hudson 5/3/2016 6/2/2016 2711.56 100640 169.6 0.02694

Direct Energy 5/3/2016 6/2/2016 7910.3 100640 0.07860 0.10554

Central Hudson 6/3/2016 7/1/2016 2490.08 98240 171.2 0.02535

Direct Energy 6/3/2016 7/1/2016 7721.66 98240 0.07860 0.10395

Central Hudson 7/2/2016 8/1/2016 2691.83 106400 171.2 0.02530

Direct Energy 7/2/2016 8/1/2016 8363.04 106400 0.07860 0.10390

Vendor Period Begin Period End

Town of Ulster

Analysis of Electrical Usage UWWTP


Invoice Usage Demand Rate Blended Rate

($) (kWh) (kW) ($/kWh) ($/kWh)Vendor Period Begin Period End

Central Hudson 8/2/2016 8/31/2016 2770.17 101440 171.2 0.02731

Direct Energy 8/2/2016 8/31/2016 7973.18 101440 0.07860 0.10591

Central Hudson 9/1/2016 9/30/2016 2775.53 101120 171.2 0.02745

Direct Energy 9/1/2016 9/30/2016 7948.03 101120 0.07860 0.10605

Central Hudson 10/1/2016 10/28/2016 2717.88 93440 168 0.02909

Direct Energy 10/1/2016 10/28/2016 7344.38 93440 0.07860 0.10769

Central Hudson 10/29/2016 12/1/2016 2481.27 83520 158.4 0.02971

Direct Energy 10/29/2016 12/1/2016 6564.67 83520 0.07860 0.10831

Central Hudson 12/2/2016 1/5/2017 1981.54 77120 120 0.02569

Direct Energy 12/2/2016 1/5/2017 6061.63 77120 0.07860 0.10429

Central Hudson 1/5/2017 2/8/2017 1865.47 80160 126.4 0.02327

Direct Energy 1/5/2017 2/8/2017 6300.58 80160 0.07860 0.10187

Central Hudson 2/8/2017 3/9/2017 1769.24 66560 118.4 0.02658

Direct Energy 2/8/2017 3/9/2017 5231.62 66560 0.07860 0.10518

Central Hudson 3/9/2017 5/31/2017 6840.28 254720 176 0.02685

Direct Energy 3/9/2017 5/31/2017 20020.99 254720 0.07860 0.10545

Central Hudson 5/31/2017 7/13/2017 3582.66 148480 171.2 0.02413

Direct Energy 5/31/2017 7/13/2017 12157.55 148480 0.08188 0.10601

Central Hudson 7/13/2017 8/1/2017 1539.13 63680 166.4 0.02417

Direct Energy 7/13/2017 8/1/2017 5214.12 63680 0.08188 0.10605

Central Hudson 8/1/2017 9/5/2017 4465.5 120000 337.6 0.03721

Direct Energy 8/1/2017 9/5/2017 9825.6 120000 0.08188 0.11909

Central Hudson 9/5/2017 10/3/2017 2735.03 97280 171.2 0.02812

Direct Energy 9/5/2017 10/3/2017 7965.29 97280 0.08188 0.11000

Central Hudson 10/3/2017 11/2/2017 2663.93 94720 171.2 0.02812

Direct Energy 10/3/2017 11/2/2017 7755.68 94720 0.08188 0.11000

Central Hudson 11/2/2017 12/1/2017 1973.43 66560 124.8 0.02965

Direct Energy 11/2/2017 12/1/2017 5449.94 66560 0.08188 0.11153

Central Hudson 12/1/2017 1/3/2018 1902.46 78720 129.6 0.02417

Direct Energy 12/1/2017 1/3/2018 5662.4 78720 0.07193 0.09610

Central Hudson 1/3/2018 2/1/2018 1962.33 70240 131.2 0.02794

Direct Energy 1/3/2018 2/1/2018 5054.47 70240 0.07196 0.09990

Central Hudson 2/1/2018 4/3/2018 4930.23 153120 177.6 0.03220

Direct Energy 2/1/2018 4/3/2018 11017.34 153120 0.07195 0.10415

Central Hudson 4/3/2018 5/3/2018 2880.93 97280 174.4 0.02961

Direct Energy 4/3/2018 5/3/2018 6992.49 97280 0.07188 0.10149

Central Hudson 5/3/2018 6/4/2018 2828.36 111680 176 0.02533

Direct Energy 5/3/2018 6/4/2018 8027.56 111680 0.07188 0.09721

Central Hudson 6/4/2018 7/5/2018 2489.28 107360 172.8 0.02319

Direct Energy 6/4/2018 7/5/2018 7716.76 107360 0.07188 0.09506

Central Hudson 7/5/2018 8/6/2018 3160.09 109760 177.6 0.02879

Direct Energy 7/5/2018 8/6/2018 7887.35 109760 0.07186 0.10065

Central Hudson 8/6/2018 9/5/2018 2793.25 104960 176 0.02661

Direct Energy 8/6/2018 9/5/2018 7542.42 104960 0.07186 0.09847

Central Hudson 9/5/2018 10/4/2018 2624.3 102240 182.4 0.02567

Direct Energy 9/5/2018 10/4/2018 7346.97 102240 0.07186 0.09753

Central Hudson 10/4/2018 10/31/2018 2852.26 96480 180.8 0.02956

Direct Energy 10/4/2018 10/31/2018 6933.05 96480 0.07186 0.10142

Central Hudson 10/31/2018 12/6/2018 2801.46 95040 161.6 0.02948

Direct Energy 10/31/2018 12/6/2018 6829.44 95040 0.07186 0.10134

Central Hudson 12/6/2018 1/8/2019 1524.15 76640 131.2 0.01989

Direct Energy 12/6/2018 1/8/2019 5514.88 76640 0.07196 0.09185

Central Hudson 1/8/2019 2/7/2019 2072.12 70720 134.4 0.02930

Direct Energy 1/8/2019 2/7/2019 5514.88 70720 0.07798 0.10728

Town of Ulster

Analysis of Propane Usage UWWTP


Delivery Invoice Rate

(gallons) ($) ($/gallon)

Heritage 1/9/2017 1154.5 $1,387.02 $1.20

Heritage 1/16/2017 729.7 $883.67 $1.21

Heritage 1/30/2107 868.1 $1,101.53 $1.27

Heritage 2/6/2017 725.7 $985.43 $1.36

Heritage 2/20/2017 1400.1 $1,738.64 $1.24

Heritage 2/27/2017 376.8 $417.08 $1.11

Heritage 3/13/2017 584.4 $625.37 $1.07

Heritage 3/27/2017 1265.1 $1,368.96 $1.08

Heritage 4/10/2017 1087.5 $1,115.56 $1.03

Heritage 4/24/2017 747 $801.98 $1.07

Heritage 5/8/2017 650 $657.61 $1.01

Heritage 5/22/2017 551 $572.32 $1.04

Heritage 6/6/2017 486.5 $500.51 $1.03

Heritage 6/20/2017 387.1 $383.38 $0.99

Heritage 7/5/2017 485.4 $469.96 $0.97

Heritage 7/18/2017 270 $273.02 $1.01

Heritage 7/26/2017 240 $251.50 $1.05

Heritage 8/8/2017 310 $347.42 $1.12

Heritage 8/22/2017 400.1 $449.63 $1.12

Heritage 8/30/2017 196.3 $220.76 $1.12

Heritage 9/11/2017 450 $534.87 $1.19

Heritage 9/27/2017 360 $455.00 $1.26

Heritage 10/17/2017 600 $818.88 $1.36

Heritage 10/31/2017 415.2 $567.66 $1.37

Heritage 11/13/2017 730 $972.58 $1.33

Heritage 11/17/2017 250 $333.08 $1.33

Heritage 11/24/2017 500 $699.45 $1.40

Heritage 11/27/2017 175.5 $249.19 $1.42

Heritage 12/4/2017 350 $501.87 $1.43

Heritage 12/5/2017 200 $286.78 $1.43

Heritage 12/10/2017 500 $718.90 $1.44

Heritage 12/19/2017 700.2 $977.13 $1.40

Heritage 12/26/2017 450 $641.93 $1.43

Heritage 12/31/2017 800 $1,170.96 $1.46

Heritage 1/10/2018 855.1 $1,292.74 $1.51

Heritage 1/23/2018 1325 $2,147.03 $1.62

Heritage 1/31/2018 500.2 $860.99 $1.72

Heritage 2/7/2018 865.6 $1,460.53 $1.69

Heritage 2/12/2018 461 $731.98 $1.59

Heritage 2/19/2018 400.1 $635.28 $1.59

Propane Supplier Delivery Date

Town of Ulster

Analysis of Propane Usage UWWTP


Delivery Invoice Rate

(gallons) ($) ($/gallon)Propane Supplier Delivery Date

Heritage 3/1/2018 700 $1,029.70 $1.47

KOSCO HERITAGE 3/10/2018 844.60 $1,056.00 $1.25

KOSCO HERITAGE 3/22/2018 1200.00 $1,551.96 $1.29

KOSCO HERITAGE 3/29/2018 484.80 $615.26 $1.27

KOSCO HERITAGE 4/6/2018 500 $627.45 $1.25

KOSCO HERITAGE 4/30/2018 1054 $1,273.65 $1.21

KOSCO HERITAGE 5/8/2018 266.2 $327.88 $1.23

KOSCO HERITAGE 5/15/2018 513.2 $650.53 $1.27

KOSCO HERITAGE 5/22/2018 275.3 $362.60 $1.32

KOSCO HERITAGE 6/5/2018 400.00 $522.08 $1.31

KOSCO HERITAGE 6/11/2018 250.00 $323.50 $1.29

KOSCO HERITAGE 6/18/2018 210.00 $258.51 $1.23

KOSCO HERITAGE 6/21/2018 125.00 $154.76 $1.24

KOSCO HERITAGE 7/2/2018 129.00 $155.90 $1.21

KOSCO HERITAGE 7/3/2018 194.60 $244.48 $1.26

Bottini 7/25/2018 381.7 $506.33 $1.33

Bottini 8/9/2018 302.5 $427.37 $1.41

Bottini 8/23/2018 400 $568.20 $1.42

Bottini 9/6/2018 247.3 $370.03 $1.50

Bottini 9/20/2018 424.5 $645.92 $1.52

Bottini 10/9/2018 500.2 $777.66 $1.55

Bottini 10/19/2018 380.8 $573.29 $1.51

Bottini 10/26/2018 273.9 $375.49 $1.37

Bottini 11/1/2018 247.4 $342.90 $1.39

Bottini 11/8/2018 406.7 $537.21 $1.32

Bottini 11/15/2018 425 $547.02 $1.29

Bottini 11/23/2018 650 $858.72 $1.32

Bottini 12/5/2018 804.5 $1,014.15 $1.26

Bottini 12/13/2018 750.7 $972.08 $1.29

Bottini 12/20/2018 528.8 $664.60 $1.26

Bottini 12/27/2018 551.8 $677.83 $1.23

Bottini 1/3/2019 500.9 $625.27 $1.25

Bottini 1/10/2019 641.6 $803.35 $1.25

Bottini 1/17/2019 693 $886.83 $1.28

Bottini 1/26/2019 869.1 $1,118.71 $1.29

Bottini 2/5/2019 908.7 $1,173.31 $1.29

Bottini 2/14/2019 792.4 $990.02 $1.25

Bottini 2/23/2019 812.5 $1,061.78 $1.31

APPENDIX D

Calculations

FIGURE

PROCESS SCHEMATIC

ULSTER WWTP ENERGY ANALYSIS

D-1

Table D-1

Ulster WWTP Energy Analysis

Energy Usage, Costs, Packback Calculations of ECM Alternatives

Estimated

BudgetDemand

Operational

pattern

Operational

pattern

Total Annual

UsagePayback

Annual

Energy Costs

Percent of

Savings to

Total Fuel

Consumed

($) (HP) (hrs/day) (hrs/yr) (kWh)(kWh/

year)(%) ($) (yrs) (kWh/year) (%)

Existing N/A Details in Table D-2 161,000 N/A N/A N/A N/A 16,100$ N/A

Flygt 191,400$ Details in Table D-3 76,400 84,600 53% 8,460$ 23 $7,640 53%

Aeroductor (Aerated) 373,000$ 3 24 8,760 19,605 N/A N/A N/A N/A $1,960 N/A

PISTA grit (vortex) 379,000$ 1 24 8,760 6,535 13,070 67% 1,307$ 290 $653 67%

SpiraGrit (vortex) 267,000$ 1 24 8,760 6,535 13,070 67% 1,307$ 204 $653 67%

Existing N/A Details in Table D-4 48,500 N/A N/A N/A N/A $4,850 N/A

Suez 365,600$ Details in Table D-4 29,200 19,300 40% 1,930$ 189 $2,920 40%

Trojan 803,600$ Details in Table D-4 35,000 13,500 28% 1,350$ 595 $3,500 28%

Wedeco - TAK 247,100$ Details in Table D-4 14,100 34,400 71% 3,440$ 72 $1,410 71%

Wedeco - LBX 364,000$ Details in Table D-4 17,600 30,900 64% 3,090$ 118 $1,760 64%

Annual Savings

Pu

mp

ing

Gri

t R

emo

val

UV

Dis

infe

ctio

n

Process Equipment Type

Table D-1


Energy Usage, Costs, Packback Calculations of ECM Alternatives

Estimated

BudgetDemand

Operational

pattern

Operational

pattern

Total Annual

UsagePayback

Annual

Energy Costs

Percent of

Savings to

Total Fuel

Consumed

($) (HP) (hrs/day) (hrs/yr) (kWh)(kWh/

year)(%) ($) (yrs) (kWh/year) (%)

Annual Savings

Process Equipment Type

Existing - Pumped N/A 10 24 8,760 65,350 N/A N/A N/A N/A $6,535 N/A

Rotamix - Pumped 49,050$ 3.8 24 8,760 24,833 40,517 62% 4,052$ 12 $2,483 62%

OTI - Draft Tube 135,000$ 5 24 8,760 32,675 32,675 50% 3,267$ 41 $3,267 50%

Ovivo - Linear Motion 282,000$ 7.5 24 8,760 49,012 16,337 25% 1,634$ 173 $4,901 25%

Screen & New Building

(Option #1)450,000$ 8 24 8,760 52,280 N/A N/A N/A N/A $5,228 N/A

Micro-strainer Screen

(Option #2)189,000$ 3 24 8,760 19,605 N/A N/A N/A N/A $1,960 N/A

Duperon Screen (Option

#3)260,000$ 2 24 8,760 13,070 N/A N/A N/A N/A $1,307 N/A

Dig

este

r M

ixin

gSc

reen

s

Table D-2


Existing Pumps Energy Use Calculations

Design Flow (gpm) 690

Motor Efficiency 82%

VFD Efficiency 98%

Diurnal Flow Diurnal FlowOperational

PatternTotal Flow

Operational

Pattern -

Pump 1

Operational

Pattern -

Pump 2

Flow -

Pump 1

Flow -

Pump 2

VFD Turn

Down Rate

Brake

Horsepower

Horsepower

from Pump

Curve

Power

Demand at

Full Speed

Power

Demand -

Pump 1

Power

Demand -

Pump 2

Energy -

Pump 1

Energy -

Pump 2

Total

Pumping

Energy(gpm) (gal/day) (hrs/yr) (gal/yr) (hrs) (hrs) (gpm) (gpm) (%) (BHP) (HP) (kW) (kW) (kW) (kWh) (kWh) (kWh)

0:00 561.7 33,703 365 12,301,715 1 0 562 0 98.0% 16.67 16.7 12.44 12.14 0.00 12.14 0.00 4,430

1:00 558.7 33,521 365 12,235,294 1 0 559 0 98.0% 16.65 16.7 12.42 12.12 0.00 12.12 0.00 4,425

2:00 452.4 27,144 365 9,907,677 1 0 452 0 93.5% 15.99 16.0 11.93 10.50 0.00 10.50 0.00 3,832

3:00 443.2 26,590 365 9,705,529 1 0 443 0 93.0% 15.93 15.9 11.88 10.34 0.00 10.34 0.00 3,773

4:00 455.4 27,326 365 9,974,100 1 0 455 0 93.5% 16.02 16.0 11.95 10.52 0.00 10.52 0.00 3,839

5:00 454.8 27,287 365 9,959,658 1 0 455 0 93.5% 16.01 16.0 11.94 10.51 0.00 10.51 0.00 3,837

6:00 467.8 28,070 365 10,245,558 1 0 468 0 94.0% 16.10 16.1 12.01 10.70 0.00 10.70 0.00 3,904

7:00 477.1 28,624 365 10,447,709 1 0 477 0 94.5% 16.15 16.2 12.05 10.86 0.00 10.86 0.00 3,962

8:00 635.2 38,110 365 13,910,253 1 0 635 0 99.0% 17.17 17.2 12.81 12.78 0.00 12.78 0.00 4,666

9:00 742.8 44,566 365 16,266,745 1 1 371 371 91.0% 18.35 18.4 13.69 11.35 11.35 11.35 11.35 8,286

10:00 873.6 52,415 365 19,131,500 1 1 437 437 92.5% 19.14 19.1 14.28 12.27 12.27 12.27 12.27 8,960

11:00 860.0 51,600 365 18,834,050 1 1 430 430 92.5% 19.06 19.1 14.22 12.22 12.22 12.22 12.22 8,922

12:00 950.5 57,028 365 20,815,122 1 1 475 475 95.5% 19.44 19.4 14.50 13.37 13.37 13.37 13.37 9,762

13:00 872.7 52,360 365 19,111,283 1 1 436 436 94.5% 19.02 19.0 14.19 12.78 12.78 12.78 12.78 9,332

14:00 924.6 55,477 365 20,249,099 1 1 462 462 95.5% 19.28 19.3 14.38 13.26 13.26 13.26 13.26 9,682

15:00 851.2 51,070 365 18,640,566 1 1 426 426 93.5% 18.94 18.9 14.13 12.44 12.44 12.44 12.44 9,078

16:00 781.4 46,885 365 17,112,890 1 1 391 391 91.5% 18.59 18.6 13.87 11.64 11.64 11.64 11.64 8,497

17:00 760.8 45,650 365 16,662,381 1 1 380 380 91.0% 18.48 18.5 13.79 11.43 11.43 11.43 11.43 8,345

18:00 787.9 47,272 365 17,254,391 1 1 394 394 92.5% 18.58 18.6 13.86 11.91 11.91 11.91 11.91 8,697

19:00 823.3 49,401 365 18,031,227 1 1 412 412 93.5% 18.76 18.8 13.99 12.32 12.32 12.32 12.32 8,992

20:00 764.1 45,848 365 16,734,580 1 1 382 382 91.0% 18.50 18.5 13.80 11.44 11.44 11.44 11.44 8,354

21:00 665.9 39,954 365 14,583,122 1 0 666 0 99.0% 17.39 17.4 12.97 12.95 0.00 12.95 0.00 4,726

22:00 690.0 41,402 365 15,111,601 1 1 345 345 90.0% 18.03 18.0 13.45 10.89 10.89 10.89 10.89 7,94623:00 644.9 38,696 365 14,123,952 1 0 645 0 99.0% 17.24 17.2 12.86 12.84 0.00 12.84 0.00 4,685

TOTAL 160,934

Diurnal Flow Bin Model

Time

Pump Manufacturer Data

Table D-3


Proposed Pumps Energy Use Calculations

Design Flow (gpm) 1130

Motor Efficiency 82%

VFD Efficiency 98%


PatternTotal Flow

Operational

Pattern -

Pump 1

Operational

Pattern -

Pump 2

Flow -

Pump 1

Flow -

Pump 2

VFD Turn

Down Rate

Brake

Horsepower

Horsepower

from Pump

Curve

Power

Demand at

Full Speed

Power

Demand -

Pump 1

Power

Demand -

Pump 2

Energy -

Pump 1

Energy -

Pump 2

Total

Pumping

Energy(gpm) (gal/day) (hrs/yr) (gal/yr) (hrs) (hrs) (gpm) (gpm) (%) (BHP) (HP) (kW) (kW) (kW) (kWh) (kWh) (kWh)

0:00 561.7 33,703 365 12,301,715 1 0 562 0 72.0% 16.81 20.5 15.29 7.58 0.00 7.58 0.00 2,765

1:00 558.7 33,521 365 12,235,294 1 0 559 0 72.0% 16.80 20.5 15.28 7.57 0.00 7.57 0.00 2,763

2:00 452.4 27,144 365 9,907,677 1 0 452 0 70.0% 16.43 20.0 14.95 6.96 0.00 6.96 0.00 2,540

3:00 443.2 26,590 365 9,705,529 1 0 443 0 69.5% 16.41 20.0 14.93 6.84 0.00 6.84 0.00 2,497

4:00 455.4 27,326 365 9,974,100 1 0 455 0 70.0% 16.44 20.0 14.96 6.96 0.00 6.96 0.00 2,542

5:00 454.8 27,287 365 9,959,658 1 0 455 0 70.0% 16.44 20.0 14.96 6.96 0.00 6.96 0.00 2,542

6:00 467.8 28,070 365 10,245,558 1 0 468 0 70.5% 16.48 20.1 14.99 7.09 0.00 7.09 0.00 2,588

7:00 477.1 28,624 365 10,447,709 1 0 477 0 71.0% 16.50 20.1 15.01 7.21 0.00 7.21 0.00 2,632

8:00 635.2 38,110 365 13,910,253 1 0 635 0 73.5% 17.11 20.9 15.57 8.07 0.00 8.07 0.00 2,945

9:00 742.8 44,566 365 16,266,745 1 0 743 0 76.5% 17.58 21.4 15.99 9.05 0.00 9.05 0.00 3,304

10:00 873.6 52,415 365 19,131,500 1 0 874 0 80.0% 18.21 22.2 16.57 10.35 0.00 10.35 0.00 3,777

11:00 860.0 51,600 365 18,834,050 1 0 860 0 79.5% 18.15 22.1 16.51 10.17 0.00 10.17 0.00 3,713

12:00 950.5 57,028 365 20,815,122 1 0 950 0 83.0% 18.52 22.6 16.85 11.41 0.00 11.41 0.00 4,165

13:00 872.7 52,360 365 19,111,283 1 0 873 0 80.0% 18.20 22.2 16.56 10.34 0.00 10.34 0.00 3,775

14:00 924.6 55,477 365 20,249,099 1 0 925 0 81.5% 18.46 22.5 16.79 10.93 0.00 10.93 0.00 3,988

15:00 851.2 51,070 365 18,640,566 1 0 851 0 79.0% 18.12 22.1 16.48 10.01 0.00 10.01 0.00 3,655

16:00 781.4 46,885 365 17,112,890 1 0 781 0 77.5% 17.76 21.7 16.16 9.41 0.00 9.41 0.00 3,435

17:00 760.8 45,650 365 16,662,381 1 0 761 0 77.0% 17.66 21.5 16.07 9.23 0.00 9.23 0.00 3,367

18:00 787.9 47,272 365 17,254,391 1 0 788 0 77.5% 17.80 21.7 16.19 9.43 0.00 9.43 0.00 3,443

19:00 823.3 49,401 365 18,031,227 1 0 823 0 78.0% 18.00 22.0 16.38 9.67 0.00 9.67 0.00 3,531

20:00 764.1 45,848 365 16,734,580 1 0 764 0 77.0% 17.68 21.6 16.08 9.24 0.00 9.24 0.00 3,371

21:00 665.9 39,954 365 14,583,122 1 0 666 0 74.0% 17.26 21.0 15.70 8.26 0.00 8.26 0.00 3,015

22:00 690.0 41,402 365 15,111,601 1 0 690 0 74.5% 17.37 21.2 15.80 8.44 0.00 8.44 0.00 3,08023:00 644.9 38,696 365 14,123,952 1 0 645 0 73.5% 17.17 20.9 15.62 8.10 0.00 8.10 0.00 2,955

TOTAL 76,387

Pump Manufacturer Data


Time

Table D-4


UV Disfinfection Alternatives Energy Usage


PatternTotal Flow UV Power

UV Energy

UseUV Power

UV Energy

UseUV Power

UV Energy

UseUV Power

UV Energy

Use

(gpm) (gal/day) (hrs/yr) (gal/yr) (kW) (kWh) (kW) (kWh) (kW) (kWh) (kW) (kWh)

0:00 561.7 33,703 443 14,936,466 6.3 1157 6.4 1179 2.6 470 3.3 599

1:00 558.7 33,521 443 14,855,820 6.3 1156 6.4 1173 2.5 467 3.2 596

2:00 452.4 27,144 443 12,029,679 6.0 1107 5.1 938 2.0 368 2.6 483

3:00 443.2 26,590 443 11,784,235 6.0 1103 5.0 918 2.0 359 2.6 473

4:00 455.4 27,326 443 12,110,328 6.0 1108 5.1 945 2.0 370 2.6 486

5:00 454.8 27,287 443 12,092,794 6.0 1108 5.1 943 2.0 370 2.6 485

6:00 467.8 28,070 443 12,439,927 6.1 1114 5.3 972 2.1 382 2.7 499

7:00 477.1 28,624 443 12,685,374 6.1 1118 5.4 992 2.1 391 2.8 509

8:00 635.2 38,110 443 16,889,517 6.5 1191 7.3 1342 2.9 539 3.7 678

9:00 742.8 44,566 443 19,750,717 6.7 1241 8.6 1579 3.5 640 4.3 793

10:00 873.6 52,415 443 23,229,038 7.1 1301 10.2 1868 4.1 763 5.1 932

11:00 860.0 51,600 443 22,867,882 7.0 1294 10.0 1838 4.1 750 5.0 918

12:00 950.5 57,028 443 25,273,255 7.3 1336 11.1 2038 4.5 835 5.5 1014

13:00 872.7 52,360 443 23,204,491 7.1 1300 10.1 1866 4.1 762 5.1 931

14:00 924.6 55,477 443 24,586,003 7.2 1324 10.8 1981 4.4 811 5.4 987

15:00 851.2 51,070 443 22,632,957 7.0 1290 9.9 1818 4.0 742 4.9 908

16:00 781.4 46,885 443 20,778,087 6.8 1258 9.0 1664 3.7 676 4.5 834

17:00 760.8 45,650 443 20,231,090 6.8 1249 8.8 1619 3.6 657 4.4 812

18:00 787.9 47,272 443 20,949,894 6.9 1261 9.1 1679 3.7 682 4.6 841

19:00 823.3 49,401 443 21,893,112 6.9 1278 9.5 1757 3.9 716 4.8 879

20:00 764.1 45,848 443 20,318,752 6.8 1250 8.8 1626 3.6 660 4.4 815

21:00 665.9 39,954 443 17,706,500 6.5 1205 7.7 1409 3.1 568 3.9 711

22:00 690.0 41,402 443 18,348,167 6.6 1216 7.9 1463 3.2 591 4.0 736

23:00 644.9 38,696 443 17,148,986 6.5 1196 7.4 1363 3.0 548 3.7 688

990,000 10,636 438,743,071 29,162 34,971 14,118 17,609

power (kW) flow (gpm) power (kW) flow (gpm) power (kW) flow (gpm) power (kW) flow (gpm)

13.2 3333 0 0 0 0 0 0

6.6 688 15 1319 3.24 694 10 1736

40 3333 8 1736 18.4 3194

16.49 3194

m 0.0025 m 0.012 m 0.0051 m 0.0058

b 4.885 b -0.3309 b -0.3092 b 0

R21 R2

0.9994 R20.996 R2

1

Trojan Wedeco-TAK Wedeco - LBX

y=mx+b y=mx+b y=mx+b


TOTAL

SUEZ

y=mx+b

UV

Un

it P

ow

er-

Flo

w

Re

lati

on

ship

Time

Table D-5


Dual Fuel Boiler Energy Savings Calculation

Assumed Gas HV

(Btu/ft3)

Avg Biogas

per Day (ft3)Avg Btu/day Avg Btuh

Avg Summer;

June-Sept

(Btuh)

Avg Winter;

Oct-May (Btuh)

500 6,563.62 3,281,808 136,742 137,045 185,576

Avg Summer Month 831.25 Gal/Month

Total Summer 3,325 Gal

Total Summer 274.7 Mscf

Total Summer 284.6 MMBtu

Total Savings 4,023$

SPP (years)* 36

*Based on $145,000 ECM cost

Digester Heat Requirement

Boiler Can Support Summer Load (June - Sept)

Total Wasted Biogas from Propane Utility Estimate

Table D-6


Digester Heat Requirements

Value Unit

Digester Flow Capacity 7,500 gpdSludge Density 8.34 lb/gal

Diameter 25.0 ft

Side Depth (in air) 13.3 ftSide Depth (in earth) 7.0 ftCenter Depth 20.6 ft

Wall Area (in Earth) 550 ft2Wall Area (in air) 1,045 ft2

Floor Area 491 ft2Roof Area 491 ft2

Dry earth embanked 0.12 BTU/ft2-F-h

Floor of digester in groundwater 0.15 BTU/ft2-F-hWall exposed to air with air plus brick 0.42 BTU/ft2-F-hFloating cover with 1-1/2" insulation 0.16 BTU/ft2-F-h

Parameter Value Unit Parameter Value Unit

Air 0 deg F Air 66.95 deg F

Earth next to tank 20 deg F Earth next to tank 60 deg FInfluent Sludge 50 deg F Influent Sludge 50 deg FEarth below tank 35 deg F Earth below tank 55 deg FSludge in digester 98 deg F Sludge in digester 95 deg F

Wall (in Earth) 5,146 Btu/h Wall (in Earth) 2,309 Btu/h

Wall (in air) 42,995 Btu/h Wall (in air) 12,306 Btu/hFloor 4,639 Btu/h Floor 2,945 Btu/hRoof 7,697 Btu/h Roof 2,203 Btu/h

Total Heat Loss 60,476 Btu/h Total Heat Loss 19,764 Btu/hSludge Heat Requirement* 125,100 Btu/h Sludge Heat Requirement* 117,281 Btu/hTotal Heat Requirement 185,576 Btu/h Total Heat Requirement 137,045 Btu/h

*Heat Equation: q = U*A*(T2-T1)

Winter Heat Losses* Summer Heat Losses*

Summer Heating RequirementsWinter Heating Requirements

Primary Digester Tank Dimensions

Parameter

Heat Transfer Coefficients

Winter Temperatures Summer Temperatures

F:\PROJECT\2255065\D\STUDY.RPT\Digester heat reqmt.xls

Arcadis of New York, Inc.

855 Route 146

Suite 210

Clifton Park, New York 12065

Tel 518 250 7300

Fax 518 371 2757

www.arcadis.com

FlexTech Study: Town of Ulster Wastewater Treatment Plant

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