Membrane bioreactor technology is a new process combining biological treatment technology and membrane separation technology, which replaces the secondary sedimentation tank in the traditional process. It can efficiently separate solid and liquid, and obtain the stable reclaimed water for direct use. It can also maintain a high concentration of microorganisms in the biological pool, less residual sludge in the process, very effective removal of ammonia nitrogen, suspended solids and turbidity in the effluent are close to zero, bacteria and viruses in the effluent are largely removed, low energy consumption, small footprint.
The application and popularization of membrane bioreactor technology are limited due to the shortcomings of low flux, short life, easy plugging, difficult cleaning and poor corrosion resistance of organic membrane components. The inorganic membrane has the characteristics of large flux, long life, easy cleaning and corrosion resistance. It can be applied to the surface treatment and other oily wastewater industry. It can not only reduce the cleaning cycle, improve the service life of the membrane, but also improve the water quality, which provides an effective guarantee for the stable operation of the late water reuse equipment.