呼和浩特市不同下垫面雨水径流污染分析  

Analysis of Rainwater Runoff Pollution on Different Underlying Surface in Hohhot City

作　　者：骆春会 黄荣 王尚杰 许得鹏 LUO Chunhui;HUANG Rong;WANG Shangjie;XU Depeng(North China Municipal Engineering Design&Research Institute Co.,Ltd.,Tianjin 300074,China;Xining Sponge City Construction Management Service Center,Xining 810600,China)

机构地区：[1]中国市政工程华北设计研究总院有限公司,天津300074 [2]西宁市海绵城市建设管理服务中心,西宁810600

出　　处：《环境影响评价》2024年第3期84-88,共5页Environmental Impact Assessment

摘　　要：本研究对呼和浩特市中心城区雨水本底污染物浓度及绿地、广场、铺装、屋面、市政道路等五类下垫面的径流污染进行了监测和分析,以期在径流污染控制和雨水资源回用方面提供有效的参考价值。分析结果表明COD、NH3-N、TN和TSS平均浓度均超过地表水Ⅳ类标准或雨水回用标准,BOD5和TP浓度可基本满足地表水Ⅳ类标准。COD、TSS和BOD5三者的相关性较高,可以通过对下垫面的清扫或维护降低径流污染物浓度,NH3-N和TN主要来源于雨水本底,可以通过控制空气质量降低浓度,控制好绿地中TP浓度可有效降低下垫面径流TP浓度,使其满足地表水Ⅳ类标准。Monitoring and analysis were conducted on the concentration of rainwater background pollutants in the central urban area of Hohhot,as well as the runoff pollution of five types of underlying surfaces,including green spaces,squares,paving,roofs,and municipal roads,in order to provide effective reference value in runoff pollution control and rainwater resource reuse.The analysis results show that the average concentrations of COD,NH3-N,TN,and TSS all exceed the Class IV standard for surface water or the standard for rainwater reuse.The concentrations of BOD5 and TP can basically meet the Class IV standard for surface water.The correlation between COD,TSS,and BOD5 is high,and the concentration of runoff pollutants can be reduced by cleaning or maintaining the underlying surface.NH3-N and TN mainly come from the rainwater background,and the concentration can be reduced by controlling air quality.Controlling the TP concentration in green spaces can effectively reduce the TP concentration in the underlying surface runoff,making it meet the Class IV standard for surface water.

关 键 词：呼和浩特 不同下垫面 雨水本底浓度 径流污染浓度 相关性 

分 类 号：X52[环境科学与工程—环境工程]