北京典型村镇降雨径流污染及排放特征  

Characteristics of rainfall-runoff pollution and its discharge in rural area of Beijing

作　　者：李青云[1] 田秀君[1] 魏孜[1] 李久义[1] 陈永[2] 赵世明[2] 

机构地区：[1]北京交通大学市政与环境工程系,北京100044 [2]中国建筑设计研究院,北京100044

出　　处：《给水排水》2011年第7期136-140,共5页Water & Wastewater Engineering

基　　金："十一五"国家科技支撑计划(2006BAJ04A07-02)

摘　　要：以2009～2010年在北京郊区大牛坊村和榆林村的10场降雨地表径流中污染物监测数据为基础,分析了村镇降雨径流污染物排放特征及初期冲刷效应。结果表明,地表径流中CODCr和SS为主要污染物;雨污合流制村镇地表径流中,TP、TN、CODCr与SS的事件平均浓度(EMC)均值分别为0.11mg/L、3.09mg/L、1 684.27mg/L、285.83mg/L。雨污分流制村镇地表径流中,TP、TN、CODCr与SS的EMC均值分别为0.37mg/L、4.73mg/L、281.97mg/L、72.57mg/L。降雨径流污染物具有较明显的初期冲刷效应,40%～50%的TP、TN、CODCr与SS污染负荷由占总径流量30%的初期径流所运移。Based on the measured data of 10 rainfall-runoffs in Daniufang village and Yulin village in Beijing rural area from 2009 to 2010,the characteristics of initial rain wash effects and pollutants discharge during rainfall-runoffs in village were analyzed.The results showed：CODCr and SS were the main pollution indexes in surface runoffs;in Daniufang village where the combined system of rainwater and sewerage was employed,the event mean concentration（EMC） of TP,TN,CODCr and SS in surface runoffs were 0.11 mg/L,3.09 mg/L,1 684.27 mg/L and 285.83 mg/L respectively.In the separated system of rainwater and sewerage employed in Yulin village,surface runoffs EMC of TP,TN,CODCrand SS were 0.37 mg/L,4.73 mg/L,281.97 mg/L and 72.57 mg/L respectively.There were obvious initial runoff effects in the rainfall-runoff pollutants,in which 40%～50% TP,TN,CODCr and SS pollutant loads were transferred by the initial 30%volume of the total rulloffs.

关 键 词：降雨径流 EMC 初期冲刷 村镇 北京市 

分 类 号：X16[环境科学与工程—环境科学]