| 摘要 |
PROBLEM TO BE SOLVED: To provide a methane fermentation system which can perform quick treatment, be downsized, and reduce running cost. SOLUTION: In this system, organic waste 1 is solubilized and then supplied to methane fermentation bacteria-fixed type fermentation tanks for methane fermentation to generate biogas which contains methane. Two or more methane fermentation bacteria-fixed type fermentation tanks are serially connected, the solubilzed liquid of the organic waste 1 is supplied to the first fermentation tank 41, and organic acids in the solubilized liquid is decomposed to form the biogas. In the fermentation tanks 48 subsequent to the first tank 41, the digested waste liquid 45 in the individual tanks is sent to the tank 48 of the next stage in order, and a residual undecomposed organic matter is decomposed to form the biogas. COPYRIGHT: (C)2005,JPO&NCIPI
|
