Bishui Bihai 134 team sewage treatment station. According to the query Baidu map shows that Bishui Bihai one-three-four team sewage treatment station is located in Haidian District, Beijing, Nanshahe East Road on the north side of the Shangzhuang Middle School about 150 meters away from the Zhonghai Fuhuari 2325 meters, is a public utility around the vicinity of Zhonghai Fuhuari. Sewage treatment plant is a place where sewage wastewater discharged from a pollution source must undergo artificially enhanced treatment when the total amount or concentration of pollutants contained therein is high and fails to meet the requirements of the discharge standards or does not adapt to the requirements of the environmental capacity, thus lowering the quality of the water environment and the functional objectives. Wastewater treatment plant is a complex system consisting of a number of unit processes, the cost and efficiency of each unit process are interlinked, each other, and ultimately determine the cost and efficiency of the entire system.