| 摘要 |
PROBLEM TO BE SOLVED: To provide a methane fermentation treatment apparatus and a control method of a methane fermentation tank, which is capable of finding out bad fermentation caused by inhibition, always maintaining in a good condition in the tank, and stabilizing methane fermentation. SOLUTION: In the methane fermentation treatment apparatus 1 having a methane fermentation tank 15 generating a biogas constituted by methane gas as a principal constituent by feeding an organic waste, a slurry feeding amount is controlled by an opening 21 for taking out a part of a fermentation liquid from the methane tank 15, a bacterium number measuring device 23 for measuring a total active bacterium number and a methane fermentation bacterium number in a fermentation liquid taken out, and a control part 24 outputting an alarm to an unstable operational condition of the methane fermentation tank when a rate of the number of methane fermentation bacteria to that of total bacteria in the fermentation liquid measured by the bacterium number measuring device 23 comes to below a predetermined threshold value. COPYRIGHT: (C)2009,JPO&INPIT
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