太浦河工程水量水质联合调度对金泽水库及松浦大桥取水口水质影响研究

Impacts of Water Quantity and Quality Joint Dispatching for Taipu River Project on Water Quality in Jinze Reservoir and Songpu Bridge Intake

金泽水源地及黄浦江松浦大桥备用取水口是黄浦江供水系统的重要组成部分,改善金泽、松浦大桥断面水质对保障上海市西南五区供水安全具有重要意义。研究了近年太浦河工程实况调度,设计了太浦闸流量分级调度方案、太浦闸水质超标分级调度方案并进行优选,在此基础上拟定了1个常规流量分级调度方案、2个水量水质联合调度方案,并采用对重点研究范围内河网水系、水利工程及污染源进行细化更新后的太湖流域模型进行水量水质模拟分析。结果表明,太浦闸采用水量水质联合调度可改善金泽水源地水位条件及水质指标,减少关键水质指标(NH3-N)超过0.8 mg/L及连续超0.8 mg/L天数,而对松浦大桥备用取水口水质指标改善效果有限。

Jinze Reservoir and Songpu Bridge intake are important parts of the Huangpu River Water Supply System,to improve the water quality of Jinze Reservoir and Songpu Bridge intake is of great significance to ensure the safety of water supply in the five southwest districts of Shanghai.This paper studies the Taipu River projects’actual scheduling in recent years,based on the design and optimization of the graded flow dispatching scheme and the graded water quality dispatching scheme for Taipu sluice,a regular flow graded dispatching scheme and two water quantity and water quality joint dispatching schemes are proposed by using the Taihu basin model which has been updated and refined about water network and pollution sources within key research scope to simulate water quantity and quality.The results show that the water quantity and quality joint dispatching scheme can improve the security of the Huangpu River water supply system by improving both the water level and the key water quality indicators of Jinze Reservoir,reducing days of the concentration of ammonia nitrogen more than 0.8 mg/L,but have limited improvement effects on water quality of Songpu Bridge intake.