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China Bio Tech Summit Dr Roy V1.0


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Manuscript and Power Point presentation slides ( presented on 21st May at "China Bioenergy Technology and Investment Summit".

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China Bio Tech Summit Dr Roy V1.0

  1. 1. Technological Development from Biogas Plant to Anaerobic Digestion; Use of Logic Model to Develop a Poly System Supply Chain Management <br />China Bio-Energy Technology & Investment Summit<br />20th-21st May 2010<br />Dr. Smarajit Roy<br />Dr Smarajit Roy (Neat U Loo)<br />1<br />
  2. 2. Aerobic Digestion<br />Biogas collection<br />Removable cover<br />Seal<br />Inlet<br />Biogas<br />Overflow tank<br />Slurry<br />Outflow<br />Dr Smarajit Roy (Neat U Loo)<br />2<br />
  3. 3. Anaerobic Digestion Process<br />Carbohydrates<br />Sugars<br />Carbonic Acids <br />& Alcehols<br />Methane<br />Carbon Dioxide<br />Hydrogen <br />Acetic & <br />Carbon Dioxide<br />Fatty Acids<br />Fats<br />Hydrogen <br />Carbon Dioxide Ammonia<br />C6H12O6 -> 3CO2 + 3CH4<br />Proteins<br />Amino Acids<br />Hydrolysis<br />Acetogenesis<br />Methanogenesis<br />Acidogenesis<br />Dr Smarajit Roy (Neat U Loo)<br />3<br />
  4. 4. Anacis Island Wastewater Treatment Plant <br />Dr Smarajit Roy (Neat U Loo)<br />4<br />
  5. 5. EEH (Steam) Energy Balance<br />Dr Smarajit Roy (Neat U Loo)<br />,<br />( 13th European Biosolids & Organic Resources Conference & Workshop.)<br />5<br />
  6. 6. 6<br />THERMAL HYDROLYSIS IMPACT <br />ON POWER GENERATION<br />Dewatering<br />Pasteurization<br />Transport<br />Dewatering<br />Transport<br />Hydrolysis – breaks down large molecules to improve digestion <br />Dr Smarajit Roy (Neat U Loo)<br />
  7. 7. Enhanced Enzymic Hydrolysis<br />Dr Smarajit Roy (Neat U Loo)<br />7<br />
  8. 8. Enhanced EnzymicHydrolyis(Steam Heating) Flow Sheet<br />Dr Smarajit Roy (Neat U Loo)<br />8<br />
  9. 9. Thermal Hydro<br />Cambi’sThermal Hydrolysis Plant (THP)<br />Black & Veatch Contracting UK installed plant at Celtic Anglian Water (CAW)<br />Dr Smarajit Roy (Neat U Loo)<br />9<br />
  10. 10. Cambi’s Largest Thermal Hydrolysis Plant <br />£75M sludge treatment contract<br />Plant will process biosolidswhich can be applied to land as fertilizer<br />Heat & Power Plant to generate up to 10 MegaWatts of Electricity<br />UK has set target of 15% of energy supplied by the national grid to come from renewable sources by 2020<br />Plant expected to handle around 91,000 tonnes of dry solids per year<br />Digestion Plant will serve a population of 3M people<br />Dr Smarajit Roy (Neat U Loo)<br />10<br />
  11. 11. Bran Sands, Tees Valley, England英国, (44 MGD + 68 MGD imports) <br /><ul><li>36,000 tonnes DS/year
  12. 12. Digester loading up to 6 kg VS/m3/ day (2-3 x conventional digestion)
  13. 13. 10-12% DS feed to digesters
  14. 14. >60 % VS reduction
  15. 15. 5.6 MW electricity generation
  16. 16. >30% dry solids Class A cake</li></ul>Courtesy of <br />Dr Smarajit Roy (Neat U Loo)<br />11<br />
  17. 17. Cogeneration – Energy Balance, Example热电联产—能量平衡举例<br />12,000 metric tons dry solids/year, 80% volatile solids content.<br />处理能力每年12000 吨干重固体, VS% 为80% <br />Heat loss热损失* 544 kW<br />Biogas to engine<br />3970 kW<br />Electricity产电<br />1584 kW<br />Biogas沼气 - 4114 kW<br />Cooling water冷却水894 kW<br />Hot water to 热水<br />HVAC 714 kW<br />Hot Water** <br />136 kW<br />Thermal Hydrolysis<br />热水解<br />1032 kW<br />Hot water to热水 <br />HVAC 743 kW<br />Steam from exhaust热尾气产蒸汽 948 kW<br />Warm sludge热污泥 489 kW<br />Biogas to steam boiler 沼气供蒸汽锅炉144 kW<br />Dr Smarajit Roy (Neat U Loo)<br />12<br />
  18. 18. WHY USE CAMBI THERMAL HYDROLYSIS?为什么采用水热解THP技术<br />提高沼气产量<br />高品质生物固体肥料<br />提高消化产率<br />提高能效和封闭消毒<br />THP消化 传统消化<br />Dr Smarajit Roy (Neat U Loo)<br />13<br />
  19. 19. “Neat U Loo” Process Flow<br />Dr Smarajit Roy (Neat U Loo)<br />14<br />
  20. 20. Dr Smarajit Roy (Neat U Loo)<br />Tripartite Partnership<br />15<br />
  21. 21. Parallel System Water Main (In & Out)<br />Dr Smarajit Roy (Neat U Loo)<br />Pump<br />Water Mains<br />HOUSE<br />PLANT<br />Drinking Water Tank<br />Toilet Water Tank<br />Filter Inorganic <br />Solids<br />Urine Separating Decentralised Main<br />Toilet<br />Bath<br />Kitchen <br />Nitrogen + <br />Phosphorous<br />Sludge Holding Tank<br />Decentralised Anaerobic Treatment Plant<br />Soil Conditioning<br />Waste Water <br />Sea<br />Combined Heat & Power (CHP) Plant<br />Fertilizer<br />Waste Water <br />Waste Water <br />16<br />