MBR membrane bioreactor is a kind of biological reaction system that integrates membrane separation technology and the biodegradation of bioreactor. Microorganisms are completely trapped in the bioreactor because of the filtration function of MBR membrane, which completely separates the hydraulic retention from the age of activated sludge. It also eliminates the problem of sludge bulking in the traditional activated sludge process.

Zhoushan's 3000-ton / day marine product processing wastewater construction cycle only took three months. It completed the construction task of the project on time and in terms of quality and quantity under the severe weather of Zhoushan in winter with rain and typhoons. After the project was completed, it was put into trial operation for two months. The effluent quality was stable and reached the national level A discharge standard.

Some measures can be taken to prevent and control the fouling process of ceramic membrane in the filtration process, but the membrane fouling can not be completely avoided. With the extension of the operation time, the permeation flux of ceramic membrane decreases rapidly

At present, there are two common methods for cleaning the polluted membrane: physical method and chemical method. Physical method refers to the method to remove the dirt by liquid flow flushing and mechanical action, usually including hydraulic method, gas-liquid pulse method, back flushing method a

Reclaimed water is the recycled water after waste water treatment. The concept of reclaimed water originated in Japan. After regeneration treatment, the reclaimed water is used in industrial production, domestic miscellaneous use, farmland irrigation, aquaculture and groundwater supplement.