APPARATUS AND METHOD FOR TREATING METHANE FERMENTED SUBSTANCE

摘要

PROBLEM TO BE SOLVED: To enhance treatment efficiency and also reduce a treatment cost by unitedly treating a methane fermented substance.

SOLUTION: An apparatus for treating a digestion gas and liquid as the methane fermented substance to be obtained by carrying out methane fermentation treatment of an organic row material comprises a solid-liquid separator for separating a liquid component from the digestion liquid as a desorption liquid, nitrification and denitrification means for making nitrification and denitrification treatment-complete water by carrying out the nitrification and denitrification treatment of the nitrification and denitrification treatment target water based on a nitrification liquid circulation method, and desulfurization means for desulfurizing a sulfur component from the nitrification gas as a sulfur absorbing liquid by carrying out gas-liquid contact of the nitrification and denitrification treatment-complete water with the digestion gas, wherein the desorption liquid is supplied to the nitrification and denitrification means as the nitrification and denitrification treatment target water, and also the sulfur absorbing liquid is supplied to the nitrification and denitrification means as the nitrification circulation liquid.

COPYRIGHT: (C)2006,JPO&NCIPI