苏州市某河网区水污染负荷研究分析  

Research and analysis of water pollution load in a river network area in Suzhou City

作　　者：周曼 王晋虎 盖园春 古向前 迟茜 Zhou Man;Wang Jinhu;Gai Yuanchun;Gu Xiangqian;Chi Qian(Tsinghua Suzhou Environmental Innovation Research Institute,Suzhou Jiangsu 215000,China)

机构地区：[1]清华苏州环境创新研究院,江苏苏州215000

出　　处：《环境与发展》2020年第12期177-179,共3页Environment & Development

摘　　要：通过对苏州市某河网区上游来水、生活污水、降雨径流及河道底泥的污染现状调查和分析,研究各污染源对水体污染的影响。结果表明:上游来水与降雨径流产生的污染负荷高,污染贡献突出;降雨径流对COD污染超标贡献约占70%;上游来水对氨氮的污染超标贡献最大,约占98%;河道排口污染的水量虽小(约占总水量1.4%),却是TN和TP污染的唯一来源,对COD的污染超标部分贡献占比可达30%;河道底泥淤积、内源污染严重,影响河道水质。研究结果可为苏州河网区河道水质提升工作提供参考。This research discusses different influences among several water pollution sources to river water quality,by investigating and analyzing the pollution status of upstream water,domestic sewage,rainfall runoff and river sediment in a river network area of Suzhou City.Results show that the pollution load generated by upstream water and rainfall runoff is high,and the pollution contribution is outstanding;the contribution rate of rainfall runoff to COD pollution is about 70%;the upstream water has the largest contribution to the pollution of ammonia nitrogen,accounting for about 98%.Although the amount of domestic sewage from pipe outlet is small(about 1.4%of the total amount of water),it is the only source of TN and TP,which accounts for about 30%of the over-standard part of COD pollution;besides,internal pollution from sediment deposition also affects water quality.The above results provide references for river water quality improvement in river network area of Suzhou.

关 键 词：河网区 污染源分析 污水排口 降雨径流 苏州 

分 类 号：X522[环境科学与工程—环境工程]