Integrated sewage regeneration treatment device and operation method

The invention discloses an integrated sewage regeneration treatment device and an operation method. The device is formed by connection of a pre-hypoxic tank, an anaerobic tank and two composite membrane tanks, and the automatic nitrification liquid reflux is realized through alternate operation of hypoxic reactions and aerobic reactions. A continuous flow and an intermittent flow are integrated in one system, and composite membrane biological reactions are adopted, so that the continuous operation of the system is guaranteed, and the treatment effect and the stability of the system are also improved. The black washing is simple, the normal operation of the system is not affected, and the device is simple in operation method, compact in equipment, high in pollutant removal efficiency, applicable to treatment and reuse of sewage of scattered communities and villages and other sewage in small water quantities and also applicable to treatment and reuse of nitrogenous industrial wastewater.