基于SWMM模型的低影响开发对城市住宅区非点源污染负荷的控制效果模拟  

Control Effect Simulation of Low Impact Development on Non-point Source Pollution Load in Urban Residential Area Based on SWMM Model

作　　者：马箐[1] 沙晓军 徐向阳[1] 刘俊[1] 

机构地区：[1]河海大学水文水资源学院,江苏南京210098 [2]江阴市水资源管理办公室,江苏江阴214400

出　　处：《水电能源科学》2015年第9期53-57,52,共6页Water Resources and Power

基　　金：国家自然科学基金项目(41471015)

摘　　要：以张家港市某典型住宅区为例,运用SWMM模型中的低影响开发模块(LID),模拟分析了现状条件及绿色屋顶、渗透路面、植被浅沟单独布设和三种LID措施组合布设场景在不同暴雨重现期条件下研究区非点源污染物(TSS、COD、TN和TP)的污染负荷量及其累积变化过程,分析了不同LID措施对城市住宅区非点源污染负荷的控制效果。结果表明,各LID措施均可控制非点源污染物浓度、削减非点源污染物累积排放量,其对各非点源污染物的控制效果在低重现期下效果更为显著,尤以组合LID措施的效果最明显。Taking a typical residential area of Zhangjiagang City as an example, based on the low-impact development module （LID） in SWMM model, in scenarios of the current conditions and green roofs, permeable pavement, vegetation laid in separate shallow trench and three combination of LID measures, the non-point source pollutants （TSS, COD, TN and TP） and the cumulative amount of pollution load change process are simulated at the conditions of different storm return period. And then the control effect of different LID measures on non-point source pollution load in urban residential area is analyzed. The results show that the LID measures can control non-point source pollutant concentrations, reduce the cumulative effects of emissions of non-point source pollution; its effect on the control of non-point source pollutants is more significant in low return period, especially is combination LID measures having best effect.

关 键 词：城市住宅区 低影响开发模块 非点源污染 SWMM模型 污染负荷 

分 类 号：X32[环境科学与工程—环境工程] TV125[水利工程—水文学及水资源]