屋面径流污染物的出流类型与水质特性研究  

Study on Outflow Types of Pollutants in Roof Runoff and Quality Characteristics

作　　者：李贺[1,2] 张秋菊[3] 李田[4] 

机构地区：[1]东南大学市政工程系,江苏南京210096 [2]南京市水处理与生态修复工程研究中心,江苏南京210013 [3]中国市政工程华北设计研究院,天津300074 [4]同济大学环境科学与工程学院,上海200092

出　　处：《中国给水排水》2009年第9期90-93,共4页China Water & Wastewater

摘　　要：在对上海城区屋面径流进行监测的基础上,分析了屋面径流中污染物的出流过程,并探讨了其水质特性。通过对污染物出流过程的研究,得到了3种屋面径流污染物的出流类型及出流水质的变化特征和发生的环境条件;污染物出流事件平均浓度(EMC)的对数正态概率分布结果表明,不同污染物的EMC均具有较好的正态分布性;对屋面径流污染物的出流EMC进行统计分析,得到上海城区屋面径流的COD、SS、BOD5、NH3-N、TP、TN的EMC分别为42.6、76.9、15.2、1.61、0.14、4.8 mg/L,其中SS、COD为主要污染物。Based on monitoring the roof runoff quality in Shanghai, the outflow of pollutants in roof runoff was analyzed, and the characteristics of roof runoff quality were studied. The outflow types of pollutants in roof runoff, the corresponding characteristics of runoff quality and the environmental conditions were obtained by studying the process of pollutants outflow. From the probability plot of the event mean concentration （EMC）, it is showed that all the pollutants concentrations have the good lognormal distribution. The EMCs of COD, SS, BOD5, NH3 - N, TP and TN in the roof runoff in Shanghai urban area are 42.6 mg/L, 76.9 mg/L, 15.2 mg/L, 1.61 mg/L, 0. 14 mg/L and 4.8 mg/L respectively, and the main pollutants are SS and COD.

关 键 词：城市面源污染 屋面雨水径流 出流类型 径流水质 对数正态分布 

分 类 号：X52[环境科学与工程—环境工程]