Thermochemical Liquidization and Anaerobic Treatment of Kitchen Garbage
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概要
- 論文の詳細を見る
The pretreatment effect of thermochemical liquidization for anaerobic digestion of kitchen garbage was studied. Model kitchen garbage (dry matter : 11.3%) was thermochemically liquidized at 175℃ and 4MPa with 1h of holding time. The liquidized garbage was separated into a solid fraction (12.2wt%) and filtrate (82.9wt%). The filtrate was anaerobically digested at added volatile solid (VS) concentrations of 1.8-1.9 g/l in a batch system. The biogas yield from the filtrate after 4d of digestion was 311 ml/g-added VS and the digestion ratio was 67%. The anaerobic treatment of the filtrate indicated fast digestion compared with mechanically disrupted garbage. The dilluted supernatant was continuosuly anaerobically digested by the upflow anaerobic sludge blanket (UASB) method. The range of digestion ratios was 74-75% at an added TOC concentration of 17.0g/l and an added TOC amount of 1.8-2.8 mg/cm^3-granule・d. The solid fraction was suggested to be easily processed to refuse derived fuel, based on its low moisture content. The energy balanece of the liquidization and anaerobic digestion treatment process was initially analyzed to be better than direct incineration.
- 社団法人日本生物工学会の論文
- 1997-05-25
著者
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MINOWA Tomoaki
Biomass Technology Research Center, National Institute of Advanced Industrial Science and Technology
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Sawayama Shigeki
Biomass Research Group Institute For Energy Utilization National Institute Of Advanced Industrial Sc
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Inoue S
Yokohama National Univ. Yokohama
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Inoue Shinji
Biomass Research Group Institute For Energy Utilization National Institute Of Advanced Industrial Sc
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Minowa Tomoaki
Biomass Technology Research Center National Institute Of Advanced Industrial Science And Technology
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Ogi T
Institute For Energy Utilization National Institute Of Advanced Industrial Science And Technology
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TSUKAHARA KENICHIRO
Biomass Division, National Institute for Resources and Environment
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OGI TOMOKO
Biomass Division, National Institute for Resources and Environment
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INOUE SEIICHI
Biomass Laboratory, National Institute for Resources and Environment
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Minowa Tomoaki
Biomass Technology Research Center National Institute Of Advanced Industrial Science And Technology
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Tsukahara Kenichiro
Biomass Research Group Institute For Energy Utilization National Institute Of Advanced Industrial Sc
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Minowa T
Biomass Technology Research Center National Institute Of Advanced Industrial Science And Technology
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