MBR membrane bioreactor process (MBR process) is a new wastewater treatment technology that combines membrane separation technology with biotechnology. It uses membrane separation equipment to retain activated sludge and large molecular organic substances in the biochemical reaction tank, eliminating the need for a secondary sedimentation tank. The concentration of activated sludge is greatly increased, and hydraulic retention time (HRT) and sludge retention time (SRT) can be controlled separately, while difficult to degrade substances continuously react and degrade in the reactor. Therefore, the membrane bioreactor process greatly enhances the functionality of bioreactors through membrane separation technology. Compared with traditional biological treatment methods, it has the advantages of high biochemical efficiency, strong resistance to load shock, stable effluent quality, small footprint, long sludge discharge cycle, and easy implementation of automatic control. It is currently one of the most promising new technologies for wastewater treatment. Since the 1990s, it has been widely researched and applied in countries such as Japan, France, and Canada.

The new generation of imported composite high polymer CSMBR membrane has made the following improvements on the basis of traditional technology:

1. Using composite high polymer materials to give the membrane surface non-polar, hydrophilic, flexible, and highly elastic characteristics;

2. Increase the mechanical strength of the membrane several times, completely eliminating the occurrence of wire breakage during membrane operation and maintenance;

3. Adopting patented technology for smooth surface of membrane micropores, the CSMBR series membranes have super strong anti fouling performance and also create extremely significant cleaning effects;

4. The significant improvement in the uniformity and porosity of micropores has saved customers a lot of equipment investment costs.