上海地区中心城区雨水泵站放江污染物总量计算方法的探讨

Discussion on the calculation method of total amount of pollutants discharged by stormwater pumping stations in central urban area of Shanghai into rivers

泵站放江对地表受纳水体或河道会形成高负荷冲击,导致水质恶化、不稳定,影响水环境治理成果。本文以上海市雨水泵站自动监测系统提供的水质、水量数据为基础,借鉴雨水径流污染负荷计算方法,提出泵站放江污染物总量计算方法。案例对比计算显示,分时求和法较算术均值法可以更加精确地计算泵站的排放总量,为泵站放江管理提供数据参考。

The discharge of the river from the pumping station forms high load impact on the surface waters or river courses,thereby leading to the deterioration and instability of water quality,and affecting the results of water environment treatment.Based on the data of water quality and water quantity provided by the automatic monitoring system of Shanghai stormwater pumping stations,the calculation method of pollution load of stormwater runoff is adopted as reference,and the calculation method of total amount of river pollutants discharged by the pumping stations is proposed in the paper.The case comparison calculation shows that the time-sharing summation method is more accurate than the arithmetic mean method in calculating the total discharge of pumping stations,thereby providing data reference for the river discharge management of pumping stations.