| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a methane fermentation residue dehydration system which can stably perform dehydration of methane fermentation residue being not related to fluctuation of concentration of impurity contained in organic waste, and sludge concentration. <P>SOLUTION: The methane fermentation residue dehydration system includes: a methane fermentation tank in which methane fermentation of an organic waste is carried out; an impurity separator which separates an impurity contained in a fermentation residue of the organic waste and a sludge containing liquid; a concentrator which concentrates the sludge in the sludge containing liquid separated by the impurity separator; and a concentrated sludge returning device which returns the concentrated sludge concentrated by the concentrator to the impurity separator, wherein the fermentation residue produced in the methane fermentation tank is supplied to the impurity separator, the sludge containing liquid separated by the impurity separator is supplied to the concentrator, and the concentrated sludge concentrated by the concentrator is returned to the impurity separator by the concentrated sludge returning device. <P>COPYRIGHT: (C)2012,JPO&INPIT |
