城市地表径流污染监测及海绵设施的控制效果  

Monitoring of Urban Surface Runoff Pollution and Control Effect of Sponge Facilities

作　　者：杜成银 蔡海振 陈海 田婷婷 荣宏伟[4] DU Chengyin;CAI Haizhen;CHEN Hai;TIAN Tingting;RONG Hongwei(Guangdong Shouhui Lantian Engineering Technology Co.,Ltd.,Guangzhou 510075,China;Zhuhai Water Supply and Drainage Pollution Control Center,Zhuhai 519000,China;Housing and Urban-Rural Development Bureau of Tianshui City,Tianshui 741000,China;School of Civil Engineering and Transportation,Guangzhou University,Guangzhou 510006,China)

机构地区：[1]广东首汇蓝天工程科技有限公司,广东广州510075 [2]珠海市供水与排水治污中心,广东珠海519000 [3]天水市住房和城乡建设局,甘肃天水741000 [4]广州大学土木与交通工程学院,广东广州510006

出　　处：《净水技术》2024年第S02期125-136,159,共13页Water Purification Technology

基　　金：甘肃省住建厅2024年建设科技计划项目(JK2024-21);广州大学研究生创新能力培养项目(JCCX2024-006)。

摘　　要：我国快速城市化对水环境的不利影响推动了对城市降雨径流污染控制技术的需求。研究对我国甘肃某地海绵城市建设区的地表径流污染进行监测,并建立InfoWorks ICM水力模型模拟降雨和不同下垫面的径流污染特性,最后通过建立的模型对研究区提出改造方案实现降雨径流污染的控制。对初期降雨水质进行监测发现,降雨径流中污染物的浓度受降雨强度和降雨前的干旱时长等因素的影响,不同时期的降雨径流污染物初始浓度不同。典型下垫面的污染程度为道路绿化带>车行道>人行道>小区路面>停车场>公园绿地>屋面,悬浮物是下垫面中最主要的污染物。利用模型分析了透水铺装、下沉绿地、高位花坛3种海绵设施分别在不同重现期下的径流和污染控制效果,得出径流污染物的控制效果为下沉绿地最佳,透水铺装次之,高位花坛处理效果较差。根据研究区的实际情况,对不同风险区提出了详细的改造方案,共布置下沉绿地69000 m^(2)、透水铺装31080 m^(2)、高位花坛2010 m^(2)。研究发现海绵设施的布置能够提升区域污染物控制能力,根据区域下垫面特性和设施布置比例不同,效果有所差别。The adverse impact of China's rapid urbanization on the water environment has driven the demand for urban rainfall runoff pollution control technologies.In this study,surface runoff pollution in a sponge city construction area in Gansu,China was monitored,and an InfoWorksiCM hydraulic model was established to simulate rainfall and runoff pollution characteristics of different underlying surfaces.Finally,a renovation plan was proposed to control rainfall runoff pollution in the study area through the established model.By monitoring the water quality of initial rainfall,it was found that the concentration of pollutants in rainfall runoff is affected by rainfall intensity and drought duration before rainfall,and the initial concentration of pollutants in rainfall runoff was different in different periods.The typical pollution degree of the underlying surface was road green belt>driveway>sidewalk>residential road surface>parking lot>park green space>roof,and suspended matter was the most important pollutant in the underlying surface.The runoff and pollution control effects of three kinds of sponge facilities in different recurrence periods were analyzed by using the model.It was concluded that the runoff pollution control effect was the best in the submerged green space,followed by the permeable pavement,and the treatment effect of the high flower bed was poor.According to the actual situation of the study area,a detailed reconstruction plan was put forward for different risk areas,including 69000 m^(2)of sinking green space,31080 m^(2)of permeable pavement and 2010 m^(2)of high flower beds.The study findsthat the layout of sponge facilities can improve the regional pollutant control ability,and the effect is different according to the characteristics of the underlying surface and the proportion of facilities layout.

关 键 词：降雨径流污染 海绵设施 水力模型 下垫面 InfoWorks ICM 模型 

分 类 号：TU992[建筑科学—市政工程]