基于SWMM模型的城市水环境污染情况模拟  

Simulation of Urban Water Environmental Pollution Based on SWMM Model

作　　者：田乐琪 Tian Leqi(Shanghai Investigation Design&Research Institute Co.,Ltd.,Shanghai,China)

机构地区：[1]上海勘测设计研究院有限公司,上海

出　　处：《科学技术创新》2023年第4期65-69,共5页Scientific and Technological Innovation

摘　　要：以我国某南部沿海城市30 km2的范围为研究区域,构建城市排水系统现状和新建工程措施工况下城市管网河道水质动态预测模型,计算分析区域雨季污染负荷,对比现状和排水工程建设措施实施后的河道水质浓度在2021年雨季和旱季情况下的变化。结果表明:利用SWMM模型可计算分析雨季的污染负荷,雨污混接是影响该区域河道水质污染的重要因素;SWMM模型可模拟分析管网河道水质污染,雨污分流、活水调度、生态护坡、海绵城市等排水工程建设措施可有效改善雨季和旱季的河道污染状况;通过模型预测可对城市排水系统进行科学评价,有助于为流域排水设施新建提出指导性意见。Based on the 30km~2 scope of a southern coastal city as the study area, a dynamic prediction model of river water quality of urban pipe network under the conditions of urban drainage system status and new engineering measures was established, and the pollution load of regional rainy season was calculated and analyzed. Compared with the status quo and the changes of river water quality concentration after the implementation of drainage project construction measures in 2021 under the rainy season and dry season.The results show that the SWMM model can be used to calculate and analyze the pollution load in the rainy season, and the rain-pollution mixing is an important factor affecting the water quality pollution of the river in this region;SWMM model can simulate and analyze the water quality pollution of river pipe network.Drainage engineering construction measures such as rain and sewage diversion, running water dispatching,ecological slope protection and sponge city can effectively improve the river pollution in rainy season and dry season;The model prediction can be used for scientific evaluation of urban drainage system, which is helpful to put forward guiding opinions for the construction of drainage facilities in river basin.

关 键 词：SWMM模型 暴雨径流 河道水质 管道排水 

分 类 号：TV121.7[水利工程—水文学及水资源] TU992[建筑科学—市政工程]