WASTEWATER TREATMENT SYSTEM AND METHOD USING MEMBRANE WITH A SINGLE REACTOR

摘要

The present invention provides a wastewater advanced treatment method and an apparatus using membrane-coupled single reactor, the method which: circulates washing granular flowing medias in a reaction tank by an upstream flow due to air generated from an aeration pipe or active sludge generated from a circulation pump to apply physical force onto the surface of an immersed separation module to reduce contamination; and also circulates a sludge solution including flowing medias in a reaction tank during an unsaturation period when no air is supplied so as to draw and discharge treatment water through a separation membrane continuously during a unsaturation period and at the same time regulate membrane contamination so as to inhibit a rise in inter-membrane pressures. Therefore, the present invention uses nitration/denitration of microorganisms under aerobic and anaerobic conditions, biological treatment by oxidation of organic materials, and physical treatment by an immersed separation membrane, thereby achieving an efficient and economical waste water treatment method.