Research Of Water Pollution And Harnessing In The City Of Lower Reaches Of Changjiang River

Based on the planning of water environmental protection in plain river network areas, this paper mainly studies on the calculation methods of water environmental capacity and projects of water quality improvement.This paper takes Taicang City as an example. Near by the Changjiang River,this aera has good condition of transferring water. Basing on the data of experiment, TaiCang city's hydraulics and water quality numerical models were established and the improving degree of water environment in the city zone was analyzed. At meanwhile, the improving effectiveness of urban water environment was indicated under the different water diversion program and the environmental impact of clearing sludge and cutting down pollutant source to the water environment were analyzed.Then this paper studies water invironmental capacity of the aera and the methods to increase invironmental capacity.This research provide reasons for optimizing projects of transferring water in river network areas and steps of obstructing contamination.