Opportunities To Reduce Energy Use and Greenhouse Gas Emissions in Wastewater Treatment Plants
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Opportunities To Reduce Energy Useand Greenhouse Gas Emissions in
Wastewater Treatment Plants
Jason TurgeonUS Environmental Protection Agency
US Conference of Mayors Water Council, Palm Beach, FLNovember 19,2008
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Maximum Ozone Levels in 2007
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Image: USAF Defense Meteorological Satellite Program
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Hartford WPCF Energy Cost vs. Use
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
Cost, millions
BTUs, 10 1̂1
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Industry Average O&M BudgetsWastewater Plant
staffing46%
Chemicals 4%
maintenance3%
Other7%
solids12%
energy28%
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New Regulations May
New Regulations May
Drive Energy Use
Drive Energy Use
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Successful Energy Management
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www.energystar.gov/benchmark
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Portfolio Manager
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What Does it Do?
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Energy Use per Flow vs. Facility Size
0
5
10
15
20
25
30
35
40
0.0 10.0 20.0 30.0 40.0 50.0 60.0
Facility Size (Average MGD)
Sou
rce
Ene
rgy
Use
d to
Tre
at 1
Gal
lon
per
Day
(kB
tu/G
PD
)
Higher Energy use than average = Low Score
Average Energy Use = Average Score (50)
Lower Energy Use than Average = High Score
Normalization: lineposition adjusted
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Energy Use and Cost vs Flow at similar sized plantsFY 2006 data
$45,233 $47,764
$88,176
$73,739
$115,053
$149,349
0.0
2.0
4.0
6.0
8.0
10.0
12.0
2.3 1.9 1.7 1.9 2.1 2
Average Daily Flow (MGD)
kBtu
/GP
D
$0
$20,000
$40,000
$60,000
$80,000
$100,000
$120,000
$140,000
$160,000
$/M
GD
Source Energy per Flow(kBtu/GPD)
Energy Cost per MGD ($/MGD)
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Plan
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Do
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Do!
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DO!!!
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Check
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Act
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Photo CreditsSome photos used under Creative Commons licenses. Thanks to the following flickr users:•The End is Near: Delayed Gratification •Pile of Money: noahwesley•Fear of Commitment: Leslie Duss•Inspection: kquedquest •People Looking at Map: threelayercake•Jumping Swimmers: Hidden side •Plumber: NoMoTo•Roller Coaster: Sven Werk•Downward Trend: nogwater •Target: Matthew McVickar •Award: shannonmary•Fine Current Adjustment Dial: thespacesuitcatalyst•Apples and Oranges: rebel prince•Bad Apple: atypically_me•Basketball: sgoogle•Building with Cactus: ralphTQ•Building with Snow: Justin Russell•Calculator: Tube Design•Changed Priorities: redvers•Padlock: Zebble•Dial 1-100: Leo Reynolds•Swiss Army Knife: Kaptain Kobold•Green Jobs in Pittsfield: greenjobsnow.org•Firefighter: djarvinen•Two Tankers: SeraphimC
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… …it’s not sustainableit’s not sustainable
If it’s not energy efficient …If it’s not energy efficient …
Contact Us
EPA Water/Energy Contacts:
Jason [email protected]
617-918-1637Katy Hatcher
[email protected](202) 343-9676
Google: ENERGY STAR Wastewater
http://www.energystar.gov/index.cfm?c=government.wastewater_focus