| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a fermentation treatment device which reduces the agitation power of a fermentation tank, improves maintainability of an agitator in the fermentation tank and improves fermentation treatment efficiency, and also to provide a method for generating a combustible gas by the fermentation treatment. <P>SOLUTION: The fermentation treatment device comprises: a first fermentation tank which can form a revolving upflow of a liquid to be fermented from beneath to an upper direction; a second fermentation tank which has an upper inflow part connected to an upper outflow part provided to the first fermentation tank and can form a revolving downflow of the liquid to be fermented from above to a lower direction by the flow of the liquid of the revolving upflow flowing from the upper outflow part to the upper inflow part; and a circulation part which supplies the liquid from the second fermentation tank to the first fermentation tank by connecting an intermediate outflow part provided to the second fermentation tank to the lower inflow part provided to the first fermentation tank. <P>COPYRIGHT: (C)2012,JPO&INPIT |
