*Technology/project introduction (background, status, characteristics, etc.): Hollow fiber membranes can well intercept microbial flocs, organic matter with relatively large relative molecular mass and other solids from the mixed liquor of the bioreactor, and return them back to the bioreactor. This greatly increases the concentration of activated sludge in the reactor, thereby effectively improving the removal rate of organic matter. The water quality of the effluent after membrane filtration is very good, and the system discharges very little residual sludge.  

*Main technical indicators: Membrane Bioreactor (MBR) for short. It combines the ultrafiltration and microfiltration membrane modules in membrane separation technology with the bioreactor in sewage biological treatment engineering, uses the membrane module as the mud-water separation unit equipment replacing the secondary sedimentation tank, and combines it with the bioreactor to form a new biological treatment device, mainly composed of two unit equipment, a bioreactor and a membrane module.  

*Current application situation: MBR has the characteristics of simple equipment, convenient management and operation, high separation efficiency, stable effluent quality, energy saving and reduced chlorine disinfection amount. It has been successfully applied in biological wastewater treatment and has broad development prospects. Membrane separation technology is widely used in water treatment, chemical, pharmaceutical, food, beverage and other industries, and has penetrated into almost all fields of the national economy. The membrane separation process has become the basis of important high-tech and sustainable development technologies to solve contemporary energy, resource and environmental pollution problems. In the future, it may revolutionize industry, agriculture, and environmental engineering to some extent.    

*Application prospects of "civilian joining the army" or "military conversion": This project has great applications in the army's island border defense to restore land nutrition and improve the soil improvement of military vegetable and vegetable fields. We welcome the cooperation of the logistics department to develop and use it.