Preparation of Activated Carbon from a Methane Fermentation Residual Substance of Soy Sauce and its Application to the Decoloration for the Wastewater from Dye House

Abstract

Energy collection by the methane fermentation residue attracts attention as utilization of soy sauce lees discharges one million tons a year in Japan. We prepared the activated carbon by carbonization-activation of methane fermentation residual substance after utilization of soy sauce lees. We found that the prepared activated carbon had well-developed mesoporous structure and had better adsorption performance than commercial activated carbon for the wastewater from dye house.