Aeration device of MBR (Membrane Bioreactor) membrane group

The utility model discloses an aeration device of an MBR (Membrane Biological Reactor) membrane group, which relates to the technical field of sewage treatment and comprises an aeration unit, the aeration unit comprises two aeration pipes which are arranged side by side, a plurality of aeration holes are formed in each aeration pipe and are positioned on the same straight line, the aeration holes in the two aeration pipes are symmetrically arranged, and the aeration holes in the two aeration pipes are symmetrically arranged. And an included angle between the position of each aeration hole and the vertical center line of the aeration pipe is 60 degrees. The aeration device disclosed by the utility model can be used for alternately washing the two surfaces of the MBR membrane group, so that the aeration blind area is effectively reduced, the washing effect on the middle parts of hollow fiber membrane filaments in the MBR membrane group, which are easy to accumulate mud, is better, and the hollow fiber membrane