南方某高校降雨径流面源污染研究  

Research on a Southern College Urban Rainfall-Runoff Non-point Source Pollution

作　　者：童祯恭[1] 付龙望 李俊 Tong Zhengong;Fu Longwang;Li Jun(School of Civil Engineering and Architecture,East China Jiaotong University,Nanchang 330013,China)

机构地区：[1]华东交通大学土木建筑学院,江西南昌330013

出　　处：《华东交通大学学报》2021年第2期136-141,共6页Journal of East China Jiaotong University

基　　金：江西省重点研发计划一般项目(20192BBGL70046);江西省2020年度研究生创新专项资金项目(YC2020-S362)。

摘　　要：为了掌握各下垫面污染物的历时变化规律,以南昌市某高校为研究区域,选取学校主干道、学生宿舍区主干道、学校休闲广场及学生宿舍屋顶4种下垫面,针对单一降雨事件,对不同下垫面的SS,COD,TN及TP污染物随降雨时间的变化规律进行分析,了解污染物随降雨历时的变化过程。结果表明,不同下垫面、不同场次降雨的水质变化范围和变化规律均有所不同,降雨径流污染物浓度整体上呈衰减态势,且前期衰减速率较快,后期衰减速率较为平缓;分析得出了4种不同下垫面降雨径流中的主要污染物。In order to grasp the diachronic variation law of the underlying surface pollutants,taking a university in Nanchang City as the research area,this study selecled the main road of the school,the main road of the student dormitory area,the leisure square of the school and the roof of the student dormitory as the four underlying surfaces.For a single rainfall event,it analyzed the variation of SS,COD,TN and TP pollutants on different underlying surfaces with rainfall time to understand the variation process of pollutants with rainfall duration.The results show that the water quality variation range and variation rules of different underlying surfaces and different rainfall events are different,the concentration of pollutants in rainfall runoff is generally attenuating,and the attenuation rate is relatively fast in the early stage and relatively flat in the later stage;The main pollutants in rainfall runoff of four different underlying surfaces are analyzed.

关 键 词：降雨径流 下垫面 面源污染 

分 类 号：X52[环境科学与工程—环境工程]