城镇化屋面雨水径流污染物变化特征研究  

Pollutants Variation Characteristics of Rainfall Runoff on Urban Roof

作　　者：郭宇 陈伟伟[2] GUO Yu;CHEN Weiwei(Jiaozuo Hydrology and Water Resources Survey Bureau of He,nan Province, Jiaozuo, He,nan 454000, China;Yellow River Institute of Hydraulic Research , Key Laboratory of Yellow River Sediment Research , the Ministry of Water Resources , Zhengzhou, He＇nan 450003, China)

机构地区：[1]河南省焦作水文水资源勘测局,河南焦作454000 [2]黄河水利科学研究院水利部黄河泥沙重点实验室,河南郑州450003

出　　处：《水利与建筑工程学报》2018年第2期221-225,共5页Journal of Water Resources and Architectural Engineering

基　　金：国家重点研发计划资助项目(2017YFC0504503)

摘　　要：对城镇化屋面雨水径流污染物变化特征进行研究,可为城区面源污染有效控制、雨水资源高效利用、海绵城市建设等提供支撑。以屋面作为汇水区域,开展天然降雨情况下场次降雨径流水文水质过程试验监测。研究表明:SS、COD、TN可作为屋面径流污染物表征值,以场次平均浓度作为主要参数,计算SS、COD、TN污染负荷量分别为102.23kg、58.71kg、7.94kg;利用M(V)曲线对污染物负荷随雨水径流增量的变化过程进行分析,曲线斜率均大于1.0,说明试验测试阶段均发生了初始冲刷。Quantitative analysis of the pollutants variation characteristics of urban rainfall runoff on roof is an important issue,which could provide evidence for effectively utilizing urban rainfall resources,nonpoint source pollution,sponge city construction and so on.Taking urban roof as the catchments area,hydrological and water quality process in natural condition was analyzed in this research.The results showed that SS,COD and TN can be used as the representatives of roof runoff pollutant.Taking event mean concentration as the main parameters,the pollution loads of SS,COD,TN calculation are 102.23 kg,58.71 kg,and 7.94 kg.Using M（V）curve to analyze the change process of pollutant load along with the increment of rainfall runoff,the slope of the curve is more than 1.0 which means the initial scour occurs evenly during the experiment test.

关 键 词：场次平均浓度 污染负荷 M(V)曲线 

分 类 号：X522[环境科学与工程—环境工程]