摘要
Abstract
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/SWMMKey words
Early polluted rainwater/pollutant interception/SWMM分类
建筑与水利
