Two-stage anoxic membrane bio-reactor system for treating wastewater in combination with an anaerobic bath and return lines

摘要

PURPOSE: A membrane bio reactor(MBR)-based wastewater treating apparatus is provided to minimize dissolved oxygen and nitrate nitrogen in sludge which is transferring to an anaerobic bath. CONSTITUTION: An MBR-based wastewater treating apparatus, an anaerobic bath(100), a first anoxic bath(200), a pre-aerobic bath(300), a second anoxic bath(400), a membrane separating bath(500), a separating membrane(510), a first transferring line(600), a second transferring line(700), and a third transferring line(800). Various microorganisms treat wastewater through the treating baths and the transferring lines.