Sustainable Water Futures – Opportunities at Water and Wastewater Utilities The Future of Recycled Water Richard Atwater.
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Sustainable Water Futures – Opportunities at Water and Wastewater Utilities The Future of Recycled WaterRichard Atwater
Sustainable Water Futures – Opportunities at Water and Wastewater Utilities The Future of Recycled WaterRichard Atwater
Richard Atwater, Inland Empire Utilities Agency
November 13, 2009GE Forum
Water shortages likely in the future because Colorado River and Sacramento River “delta” supplies fully allocated!
State Water Plan: Conservation, water recycling, groundwater treatment and stormwater capture key strategies in urban areas.
Seawater desalination a relatively small percentage of solution but will be important in some coastal communities.
Water/Wastewater utilities will increasingly focus on renewable energy as a result of climate change laws and regulations.
$1 billion for water recycling and $1 billion for groundwater clean up
And another $1.4 billion for regional water supply projects
Sources of New Supplies:◦ Conservation Technologies - 40% ($1.5 billion)◦ Recycled Water – 30% ($8-10 billion)◦ Groundwater Storage and Cleanup Technologies –
25% ($6-7 billion)◦ Seawater Desalination of New Water Supplies –
1% to 3% ($2 billion)◦ New Dams – 2% to 5% (if built about $10-12
billion)
Governor’s Recycled Water Task Force 2003California Water Board Recycled Water Policy
2009Water Bond $1 billion for Recycled WaterMetropolitan Water District Regional Water Plan
California – reuse and recycling will double in volume by 2015 and then double again
by 2020!
Landscape IrrigationAgricultural Irrigation (Edible & Non-Edible
Crops)Industrial and CommercialEnvironmental UsesNon-Potable Urban Uses (Urinal Flushing in
High Rise Buildings)Groundwater RechargePotable Water Supply Augmentation
Use Watersense and DOE Energy Star branding models
Promoting new innovative uses of recycled water
Encourage recycled water use at all federal facilities
Answer: Virtually Anything Given Current Answer: Virtually Anything Given Current TechnologyTechnology
With MF/RO/UV/AOP, Can Produce Water that With MF/RO/UV/AOP, Can Produce Water that is Virtually Pure Dihydrogen Monoxideis Virtually Pure Dihydrogen Monoxide
Problem is that Technology has Surpassed Problem is that Technology has Surpassed our Ability to Communicate Effectively with our Ability to Communicate Effectively with PublicPublic
Need to Resolve Issues with EDCs/PPCPsNeed to Resolve Issues with EDCs/PPCPs
Reuse is Gaining in Prominence Around the Globe Reuse is Gaining in Prominence Around the Globe (e.g., Australia, Singapore, South Africa, Israel, (e.g., Australia, Singapore, South Africa, Israel, Spain, Belgium)Spain, Belgium)
Technology Marches Forward with AOP & MBRsTechnology Marches Forward with AOP & MBRsConstant Challenge in Public Acceptance ArenaConstant Challenge in Public Acceptance ArenaResearch Focus is Now GlobalResearch Focus is Now GlobalClimate Change and Energy are Significant Climate Change and Energy are Significant
Emerging IssuesEmerging IssuesProgress Being Made Internationally on Indirect Progress Being Made Internationally on Indirect
Potable Reuse FrontPotable Reuse Front
Approximately Approximately 11.2% of municipal 11.2% of municipal wastewater effluent wastewater effluent in the U.S. is in the U.S. is reclaimed and reclaimed and beneficially reusedbeneficially reused
11.2% Reclaimed
About 34.9 bgd Municipal Effluent in the U.S.
86 mgd86 mgd
70 mgd70 mgd 70 mgd70 mgd
Ultraviolet Ultraviolet Light Light
(AOP)(AOP)
Brine Brine OCSD OutfallOCSD Outfall
Backwash Backwash OCSD Plant 1OCSD Plant 1
MicrofiltrationMicrofiltration(MF)(MF)
Reverse Reverse OsmosisOsmosis
(RO)(RO)
Purified Purified WaterWater
with hydrogenwith hydrogenperoxideperoxide
EnhancedSource Control
SecondaryTreatment
Natural soil
filtration
OCSD OCSD Secondary Secondary
EffluentEffluent
Secondary Tertiary
Soil-Aquifer Treatment
Primary
Groundwater Blend & Hold
Distrib
utio
n S
yste
m
Industrial & Brine Export
95% TOC Removal to 7.0 mg/L Avg.
75% TOC Removal to ±2 mg/L
Ind
ustr
ial
Pre
treatm
en
t &
S
ou
rce C
on
trol
Influent TOC Avg. 165 mg/L
50% TOC Removal to ±1 mg/L
Pre-Treatment Program◦ Manages Significant Industrial Users (SIU)◦ No Drugs Down the Drain Program◦ Industrial & Brine Export to NRWS
Longstanding Treatment Facility Performance◦ Outstanding NPDES & T-22 Compliance Record
100% Compliant for 2008
◦ Exceptional Nitrogen and TOC Removal◦ No Issues with Emerging Constituents of Concern
Recycled Water UsageRecycled Water UsageActual and PlannedActual and Planned
FY08/09 Projected FY11/12 (3-Year RW Business Plan)
3-Years
Three Products:Recycled WaterBiosolids/ CompostingRenewable Energy
Since 2001, goal has been to maximize renewable energy, optimize energy usage
Significant investments made in biogas generation, energy efficiency, green building (first platinum LEED)
Go “100% Renewable” by 2020 Pursue New Renewable Technologies
Maximize Efficiency Constructed the nation’s
first platinum LEED-rated headquarters by a public agency (2003)
Biogas production from anaerobic digesters
Installed a total of 16.5 acres of solar panels in 2008 on four Agency’s sites
Sustainability and Diversification
Renewable Energy Strategies Climate Change Key Driver to the Future Cost of Water
Local Distribution9%
Groundwater Supply6%
Imported Water Supply71%
Waste Treatment14%
400
9501,050
1,700
2,000
2,500
3,200
4,400
-
500
1,000
1,500
2,000
2,500
3,000
3,500
4,000
4,500
KW
H/A
F
Recycling GroundwaterPumping
Ion Exchange ChinoDesalter
ColoradoRiver
Aqueduct
West BranchState Project
Water
East BranchState Project
Water
OceanDesalter
Energy Use by Source
Solar System at IEUA Water Recycling PlantSolar System at IEUA Water Recycling Plant(Went live 11/28/08 at 1300 hours)(Went live 11/28/08 at 1300 hours)
3.5 MW of Solar installed at 4 sites in just 4 months
Financing – Power Purchase Agreements (PPA) used – No capital burden on Agency
No maintenance responsibilities for IEUA
Richard AtwaterCEO/General ManagerInland Empire Utilities Agencywww.ieua.orgatwater@ieua.org
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