METHOD FOR REDUCING ODOR IN METHANE FERMENTATION AND APPARATUS FOR ITS METHOD

摘要

PROBLEM TO BE SOLVED: To provide a method for reducing an odor in methane fermentation which reduces generation of a compound containing sulfur and nitrogen causing a bad odor, and develop an apparatus for its method.

SOLUTION: The method for reducing the odor in the methane fermentation comprises (a) a bad odor component in a digestive liquid from a methane fermentation tank which is joined with gas passing through a gas purification device, returned to the methane fermentation tank and reduced by mixing the digestive liquid in the fermentation tank and a purified gas, and then (b) delivery of the digestive liquid after the bad odor component of the digestive liquid is reduced in the methane fermentation of an organic waste material.

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