Abstract:With the further strengthening of the national sewage discharge standards, new technologies and processes for advanced sewage treatment are emerging. Compared with biological aerated filter, active filter and denitrification deep bed filter, membrane bioreactor (MBR) process has higher effluent quality, higher management level, lower land requirements, and the investment and operation cost are relatively controllable. In the deep biological denitrification treatment, it can obtain lower treatment cost. MBR process will play a great role in promoting the transformation from the traditional treatment mode of "high energy consumption, high drug consumption and low standard" to the new environmental protection treatment mode of "carbon source utilization, resource recovery and reclaimed water reuse".