Anaerobic Digestion - Metropolitan Water Reclamation District of ...

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What Will be Discussed? • Energy Issues & Wastewater Treatment • Digester Feed • Sources • Preparation • Digester Operation • Gas Production • Combined Heat and Power • Gas Cleanup • Power Production • Heat Recovery • Case Studies • New WEF/WERF/EPA Solids Manual
Significance and Drivers • Electric use for centralized W&WW treatment accounts for 3.0% * of US electricity use • $4 billion annually, 25-30% of total plant O&M Cost ** • Direct US GHG Emissions (2006) *** - Municipal WW treatment- • 0.4 % of total GHG emissions • 3.0% of total anthropogenic Methane (CH 4 ) and 2.2% of total Nitrous Oxide (N 2 O) emissions • CH 4 : 16 Tg CO 2 eq., N 2 O: 8.1 Tg CO 2 eq. • Estimated US GHG Emissions (2006) from electricity generation for centralized W&WW treatment: 69.8 Tg CO 2 eq. **** (1.2% of total US GHG emissions) * Electric Power Research Institute (EPRI) ** Energy Star Program *** Inventory of Greenhouse Gas Emissions and Sinks: 1990 – 2006, EPA, 2008 **** EPRI estimate & Inventory of Greenhouse Gas Emissions and Sinks: 1990 – 2006, EPA, 2008
Page 1: State of the Science on Cogeneratio
Page 5 and 6: Energy Conservation Measures Solids
Page 7 and 8: Summary of OCSD Biosolids Disposal
Page 9 and 10: Courtesy of R Dale Richwine, MWH An
Page 11 and 12: Why Anaerobic Digestion and Wastes
Page 13 and 14: RECOVERING & USING ENERGY FROM WWTP
Page 15 and 16: Current Situation / Potential POTW
Page 17 and 18: Wastewater Plant Diagram Influent E
Page 19 and 20: Requirements for Anaerobic Digestio
Page 21 and 22: Typical Properties of Primary and W
Page 23 and 24: From USEPA-Region 9 & EBMUD Compari
Page 25 and 26: Example of Innovative Approach - EB
Page 27 and 28: Courtesy of Tom Kutcher of CH2M Hil
Page 29 and 30: Thermal Hydrolysis • High pressur
Page 31 and 32: CAMBI’s Performance Claims
Page 33 and 34: Performance Data by Crown
Page 35 and 36: Anna Maria Sundin, DISINTEGRATION O
Page 37 and 38: Summary of Sludge Pre-Treatment Opt
Page 39 and 40: Study Results
Page 41 and 42: Discussion of Different Mixing Tech
Page 43 and 44: Discussion of Different Mixing Tech
Page 45 and 46: Biogas Treatment for Beneficial Use
Page 47 and 48: Damage from H 2 S & Siloxane Engine
Page 49 and 50: Combined Heat and Power • Definit
Page 51 and 52: Energy Recovery from Digester Gas u
Page 54 and 55:
ELECTRIC & THERMAL ENERGY POTENTIAL
Page 56 and 57:
Case Study From "The Power of Diges
Page 58 and 59:
Power Generation Cost Summary Compa
Page 60 and 61:
UPDATE SOLIDS PROCESSING DESIGN AND
Page 62 and 63:
More than half way there! Online Ve
Page 64 and 65:
3. Greenhouse Gas and Establishing
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Anaerobic Digestion - Metropolitan Water Reclamation District of ...

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