METHOD FOR TREATING ORGANIC WASTE WATER

• Main Authors: TAKAHATA HIROO, OTAKE TOSHIO, ITOU TSUGUHITO
• Format: Patent
• Language: English
• Published: 12.04.2007
• Subjects: CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATERTREATMENT OR WASTE MANAGEMENT; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; METALLURGY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; TRANSPORTING; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

PROBLEM TO BE SOLVED: To provide a method for treating an organic substance-containing liquid by a membrane separation activated sludge method without increasing the amount of generated excess sludge, capable of preventing troubles such as poor membrane permeability, foaming, the generation of scum, an increase in viscosity or the like for a long time and continuously, and stable; and a treatment apparatus. SOLUTION: In the treatment of organic waste water by the membrane separation activated sludge method including operation A loading activated sludge with a flocculant and operation B for making a micro animal act on the activated sludge, the method for treating the organic waste water comprises implementing at least one time of the operation B during from before 3 days to after 7 days of the period of implementation of the operation A. COPYRIGHT: (C)2007,JPO&INPIT