ANAEROBIC DIGESTION METHOD FOR SLUDGE CONTAINING ORGANIC SUBSTANCE

摘要

PURPOSE: To reduce efficiently the amount of waste organic substances and to provide an economical anaerobic sludge digestion system without changing existing digestion equipment in a method for biological anaerobic digestion treatment of organic substances in waste. CONSTITUTION: An ultrafiltration film apparatus 3 is installed in a primary anaerobic digestion tank 1 to improve the decomposition rate of organic substances. In addition, an oxygen-free gas ejector 7 is attached to the gas tank of a secondary anaerobic digestion tank 2 so that the decomposition rate is further increased.