The sewage treatment system includes pre-treatment system, adjusting tank, anaerobic system, MBR system, high pressure reverse osmosis system, medium pressure nano-filtration concentrate system, sludge de-watering system, and parts of supporting equipment and accessories. The treatment process of this project is pre-treatment + anaerobic treatment +MBR + RO + NF concentration". The treated effluent quality should meet the discharge standards. According to experience, under normal circumstances, the water quality of the waste incineration power plant is shown in table 3-1 and 3-2.