水泵强制排水系统合流制溢流的污染源解析  

Pollutant Source Apportionment of Combined Sewer Overflows for a Pump Lifting Drainage System

作　　者：李田[1] 戴梅红[1] 张伟[1] 钱立鹏[1] 

机构地区：[1]同济大学污染控制与资源化研究国家重点实验室,上海200092

出　　处：《同济大学学报（自然科学版）》2013年第10期1513-1518,1525,共7页Journal of Tongji University:Natural Science

基　　金：国家水体污染控制与治理专项(2009ZX07316-001)

摘　　要：在对上海市某截流式合流制系统服务范围内的地表径流、生活污水、雨天截流、溢流的水质与水量进行同步监测的基础上,根据排水管网水力模型确定系统储存的生活污水量,采用输入输出质量平衡法初步分析了该系统雨天总出流（溢流加截流）与溢流过程的SS,NH4＋-N来源,结合降雨特性比较分析了雨天总出流、溢流的污染源解析结果的差异,与雨天总出流的污染负荷构成相比,2012年6场降雨溢流事件的溢流SS,NH4＋-N负荷中,地表径流的贡献率分别下降了10.2％～25.1％,4.5％～11.0％,生活污水贡献率分别降低了0.3％～1.5％,6.0％～30.7％,管道沉积物贡献率则分别增长了11.2％～25.4％,6.8％～37.2％.研究成果直接确定了对水体造成危害的溢流污染的来源,为合流制溢流污染控制、城市水环境保护策略的制定提供了依据.Origins of pollution loads of SS,NH4 ＋-N from total wet weather flows and the overflows from a pump lifting-combined sewer system in Shanghai were analyzed with the method of the entry-exit mass balance, respectively, based on simultaneously quantity and quality monitoring of surface runoff, sanitary sewage, intercepted wet weather flow and sewer overflow. Compared with the origins of SS , NIL-N in wet weather flow from 6 monitored rainfall/overflow events, the origins of the two pollutants in CSO were different： the surface runoff contribution decreased by 10.2 % -25. 1% and 4. 5%-11.0%, respectively; the sanitarysewage contribution decreased by 0.3 % - 1.5 % and 6.0 % 30.7%, respectively; while the sewer deposits contribution increased by 11. 2%- 25. 4% and 6. 8% - 37. 2%, respectively. Reasons of the difference were analyzed. The results provide a better method to apportion wet weather pollution suffered by urban receiving water, and help to make reasonable decisions to control CSO pollution.

关 键 词：合流制溢流 雨天出流 输入输出质量平衡法 管道储存水量 源解析 

分 类 号：X522[环境科学与工程—环境工程]