MBR (Membrane Bioreactor) membrane assembly

The invention relates to the technical field of wastewater treatment, in particular to an MBR membrane component which comprises a main box and filter membrane plates, the filter membrane plates are clamped in the main box at equal intervals, and blockage detecting and removing mechanisms for detecting and removing the surfaces of the filter membrane plates are arranged at the upper ends of rotating rods respectively. The blockage detecting and removing mechanism comprises a plurality of first two-way lead screws fixedly arranged at the upper end of the rotating rod, a reciprocating removing mechanism for layering waste water is arranged at the upper end of the main body box, and a discharging and absorbing mechanism for blowing and sucking air to the blockage detecting and removing mechanism is arranged in the side face of the main body box; the sewage treatment device has the advantages that the impurity scraping mechanism located at the upper end continuously scrapes floating impurities to one end of the m