镇江老城区降雨径流污染特征分析  

Characteristics of pollution in precipitation runoff in Zhenjiang urban area

作　　者：盛建国[1] 曾平[1] 张灿灿[1] 晏勤晓[1] 

机构地区：[1]江苏科技大学生物与化学工程学院,江苏镇江212003

出　　处：《江苏科技大学学报（自然科学版）》2011年第5期496-499,共4页Journal of Jiangsu University of Science and Technology:Natural Science Edition

基　　金：国家重大水专项基金分项(2008zx07317-001)

摘　　要：通过雨季收集了镇江市老城区代表性样点的降雨径流水样,分析了镇江市老城区道路和屋面雨水径流中的COD、SS、TP和NH3-N等污染指标的浓度和输出特征变化规律及其主要影响因素.结果表明,镇江市老城区雨水径流污染负荷较高,初期径流污染严重,主要是有机污染物污染和悬浮物固体污染;污染物浓度随降雨历时呈现规律性变化,并随下垫面以及周围环境的不同而存在一定差异.掌握镇江老城区降雨径流污染特征可对中小城市合理开展径流污染控制及老城区雨污水管网改造提供科学依据.The representative samples of rainfall-runoff water in Zhenjiang urban area are collected to study the concentration of pollutants including COD,SS,NH3-N,and TP.Also,the samples can show varying rules of output characteristics and main factors in the rainfall-runoff and the roof-runoff in Zhenjiang urban area.The results indicate that the pollution load of the rainfall in Zhenjiang urban area reaches a high leve1.The initial runoff pollution is serious,and the main pollutions are organic pollutant and suspended solids pollution.The concentration of pollutant changes with rainfall duration regularly,and there is certain difference with different surfaces.This provides the basis for reasonable control of the runoff pollution and reconstruction rain sewage pipe network.

关 键 词：降雨 径流水质 污染特征 影响因素 

分 类 号：X131.2[环境科学与工程—环境科学]