Patent ID: 8173019
Filing Date: 2012-05-08
Classification: C02F,Y02W

Abstract:
1. A method for forming a facultative-organism-adapted membrane bioreactor, the method comprising a) providing a membrane bioreactor comprising a membrane module, wherein aerobic microbe and facultative microbe coexist in the membrane bioreactor and the facultative microbe existing in the membrane bioreactor is predominant; b) aerating intensively said membrane module at a lower part thereof and maintaining a scouring effect against said membrane module so that an aerobic environment is formed at a middle and lower part of said membrane module; and c) controlling aeration intensity so that a concentration of dissolved oxygen around said membrane module excluding the middle and lower part thereof is less than 1.0 mg/L whereby a facultative or anaerobic environment is formed around said membrane module excluding the middle and lower part thereof.