基于SWMM的工业企业初期雨水污染物截留研究  

Study on Interception of Rainwater Pollutant in Early Stage of Industrial Enterprises Based on SWMM

作　　者：柯庆 KE Qing(Digital Technology Center,China Electronics Engineering Design Institute,Beijing 100010,China)

机构地区：[1]中国电子工程设计院股份有限公司数字化技术中心,北京100010

出　　处：《四川环境》2025年第2期149-155,共7页Sichuan Environment

摘　　要：初期污染雨水是工业园区水环境的重要污染源,对源头初期污染雨水进行收集处理是解决水环境问题的重要手段。针对四川省某工业企业罐区初期雨水收集系统建立了SWMM(Storm Water Management Model暴雨洪水管理模型)降雨径流污染模型,并选取SS作为污染物指标,模拟了不同降雨强度下、不同初期雨水池容积情况下初期雨水收集系统对污染雨水的截留效果。基于SWMM模拟结果表明:1、初期雨水收集系统能有效截留降雨冲刷的地表污染物,在同一重现期下,随着初期雨水池收集容积的增大,对污染物的截留效果越好,但当收集容积增大到一定程度后污染物截留量不再增大;对同一初期雨水收集池容积,重现期越大,污染物的截留效果越好。2、SWMM模型可以作为模拟工业厂区初期雨水收集系统的有效工具,针对小型管网,在收集管网末端进入初期雨水池前设置溢流井可以有效截留初期污染雨水。Early polluted rainwater is an important source of water environment in industrial parks.The collection and treatment of early polluted rainwater is an important means to solve water environment problems.In this paper,a storm water management model(SWMM),a rainfall runoff pollution model,was established for the initial rainwater collection system of a tank farm in an industrial park in Sichuan,and SS was selected as a pollutant index to simulate the interception effect of polluted rainwater collected by overflow wells under different rainfall intensities and different initial rainwater tank volumes.The results showed that:1.The initial rainwater collection system can be used for effectively intercepting the surface pollutants washed by rainfall,and in the same return period,with the increased collection volume of the initial rainwater tank,the pollutant interception effect improves,but when the collection volume reaches a specific level,the pollutant interception amount remains unchanged;and for the initial rainwater collection tank with the same volume,the longer the return period,the better the pollutant retention effect.2.SWMM can be used as an effective tool to simulate the initial rainwater collection system of the industrial park,and for the small pipe network,an overflow well can set up at the end of the collection pipe network before the early polluted rainwater flows into the initial rainwater collection tank,so as to effectively intercept the early polluted rainwater.

关 键 词：初期雨水 污染物截留 SWMM 

分 类 号：TU992[建筑科学—市政工程]