河流水体中污染物自净的机理及算例

Mechanism of Self-purification of Pollutant inside River Water and Calculation Examples

通过适当的假定和简化 ,描述了污染物在河流水体中随水迁移、分散以及污染物质的衰减转化规律 ,分别给出了数学模型 ,在此基础上 ,获得了污染物在河流水体中的一维数学方程 ,并且还讨论了污染物在河流水体中的紊流自净模型 。

The mechanism of self-purification of pollutant was studied from three aspects-transporting, dispersing and decaying & conversing inside river water, and in this paper the mathematical models of pollutant transporting, dispersing and decaying & conversing were set up.Then,in this paper the mechanism of turbulent current diffusion of pollutant was discussed. Finally, a calculation example is given.