Fixing assembly of MBR (Membrane Bioreactor) membrane element and membrane bioreactor

The utility model relates to the technical field of advanced sewage treatment, in particular to a fixing assembly of an MBR (Membrane Bioreactor) membrane element and a membrane bioreactor using the fixing assembly. According to the MBR membrane element, the connecting hole and the connecting piece are matched to fix the fixing assembly on the membrane rack, the mounting pipe of the mounting groove is limited in the radial direction and the axial direction, when the mounting groove is impacted by sewage in a membrane pool and the MBR membrane element is impacted by bubbles during aeration, the mounting groove does not displace, rotary deformation and tensile deformation of the MBR membrane element are prevented, and the service life of the MBR membrane element is prolonged. The normal work of the MBR membrane element and the membrane bioreactor is maintained. In some embodiments of the invention, the fixing assembly comprises the upper fixing piece and the lower fixing piece, and the upper fixing piece and th