The treatment process of industrial sewage recycling and utilization is mainly as follows. Firstly, the water quality of industrial sewage should be analyzed and appropriate treatment methods should be selected according to the water quality. Secondly, in order to make the water quality of sewage meet the standard of water use, it must be secondary treatment, the common process is physicochemical + biochemical +MBR.

Membrane bioreactor (MBR) is a new sewage treatment technology combining high efficiency membrane separation technology and activated sludge method. The membrane unit is directly immersed in the liquid mixture of activated sludge. It does not need to set up a special secondary sedimentation tank or a special filtration system, so as to reduce the occupation area. It is suitable for the new sewage treatment plant, municipal sewage bid improvement and other projects.