▎ 摘　　要

NOVELTY - Preparing membrane aerated biofilm rector (MABR) hollow fiber composite membrane comprises (i) placing the substrate in a solvent for pretreatment; (ii) uniformly mixing the coating base material, catalyst, dispersant and reinforcing agent to obtain a coating liquid; and (iii) coating the coating liquid on the surface of the pretreated substrate and curing. USE - The composite membrane is useful in MABR sewage treatment, to MABR sewage treatment to realize oxygen consumption and in the process of anaerobic microorganism degradation (claimed). ADVANTAGE - The membrane has high oxygen permeability and dry film bubble point pressure under the condition of ensuring the density of the composite film, which ensures the operation efficiency of the MABR system. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for hollow fiber composite membrane prepared by the above mentioned method, where the inner diameter of the MABR hollow fiber composite film is 10-1000 microns, and the wall thickness is 10-600 microns.