基于SWMM截流式合流制管网溢流水质水量模拟

Modeling of overflow quantity and quality based on SWMM interception combined drainage network

采用暴雨管理模型(Storm Water Management Model,SWMM)对柳州市竹鹅溪片区截流式合流制管网溢流进行了水质水量模拟,并将模拟结果与实测数据进行了比较分析。结果表明,虽然TSS模拟结果与实测值偏差较大,但模型的水量模拟具有较高的可靠性与准确性,TN、TP、COD三种污染物模拟结果也与实测数据偏差较小。SWMM模型可以成为城市面源污染研究的有效工具,并为合流制溢流污染控制提供科学参考。

The storm water management model（SWMM）is used to simulate the quantity and quality of combined sewer overflows（CSOs）in Zhu-e Creek Area in Liuzhou City.From the comparison of the simulated results and the measured data,we can find that although the deviation between simulated results of TSS and the measured data is wide,the simulation of water quantity has a better reliability and accuracy.The simulated results of TN,TP and COD are very close to the measured data.So the SWMM model can be an effective model for urban non-point source pollution research and provide scientific reference for the control of combined sewer overflow pollution.