Treatment process of membrane bioreactor in nondegradable industrial wastewater

The invention discloses a treatment process of a membrane bioreactor in nondegradable industrial wastewater, which comprises the following two stages: 1, continuous water feeding/discharge and aeration stage: while aerating, continuously feeding water into the membrane bioreactor and continuously pumping water, and entering the next stage after operating for a period of time; and 2, anaerobic stage: stopping feeding and discharging water and aerating so that the active sludge is in the anaerobic condition, and repeating the first stage after operating for a period of time. The treatment process can be used to enhance the treatment efficiency for high-concentration nondegradable wastewater, such as dyeing plant wastewater, factory finishing wastewater and the like, and increase the removalrate of total nitrogen, so that the quality of the discharged water can reach the standard for circulating cooling water, thereby converting sewage into resources.