Effect of Sudden Water Pollution Accident on Water Quality of the Jinhua River

Sudden water pollution accidents have great harm to the ecological environment of human society. In recent years, the water pollution accident has been the main content of the environmental pollution accident in our country. It is very necessary to simulate and evaluate the impact of sudden water pollution accident on the river water quality. At present in the numerical simulation, Fluent, CFX and other CFD computing software has been more mature, in the simulation of complex field has achieved good results. In the field of water environment simulation, according to the previous research results, we can sum up a set of more mature experience. Regarding to the Jinhua River as an example, we analyze water pollution accident impact on water quality in different water flow rate and provide a reference for the establishment of emergency system for sudden water pollution accident.