Anaerobic Digestion - Metropolitan Water Reclamation District of ...

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USEPA-Region 9, 2008 Co-generation at Wastewater Treatment Plants in California • ~ 50 % POTWs > 1 MGD have anaerobic digesters • ~ 95 % <strong>of</strong> sewage treated, however, has its solids treated by anaerobic digesters • Randomly interviewed 32 facilities • 21 have installed cogeneration (66 %) • 5 use methane for heat only • 6 flare methane (20 %)
Wastewater Plant Diagram Influent Effluent Preliminary Treatment Primary Treatment Secondary Treatment Solids Reuse Solids Processing Central Power Generation System Engines Solids Digesters Dewatering
Page 1 and 2: State of the Science on Cogeneratio
Page 3 and 4: Significance and Drivers • Electr
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: Current Situation / Potential POTW
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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