城市多排污口对河流水质影响的模拟研究

通过实测阜新新邱长营子桥段5个连续排污口处污染物浓度,采用水平二维水质迁移模型对细河城市段排污口排出的生活废水及1 500 m长的细河河段进行模拟分析,计算出多排污口在耦合叠加作用下,河段内污染物的迁移扩散和污染物浓度的分布特征。模拟分析得出:第1、2、3年污染物在3个监测断面处的横向迁移距离和纵向迁移距离,污染物最大浓度所在的位置以及岸边处污染物浓度的分布规律曲线,为城市污水治理和城市规划提供一定的科学依据和指导。

THE SIMULATION RESEARCH OF MULTIPLE SEWAGE OUTLETS' INFLUENCE ON WATER QUALITY

Taking five continuous sewage outlets of Xihe River in Fuxin for example,a two-dimensional horizontal transport model is used to analyze five drain outlets of domestic sewage and the river with the length of 1 500 m,computing the transport and dispersion of pollutants and the distributed characteristics of pollutant concentration,under the condition of drain outlets coupling.It is simulated that the longitude and latitude distance of pollutants transport at 3 monitoring cross sections in the 1st,2nd and 3rd year,the location of maximum pollutants concentration and the distributed curve of pollutants concentration at the bank of river,which can provide scientific basis and guidlines to sewage disposal and city planning.