雨水花园蓄渗处置屋面径流案例分析  

Case Study on Rain Garden Storage-infiltration System for Disposal of Roof Runoff

作　　者：李俊奇[1] 向璐璐[1] 毛坤[1] 李宝宏[2] 李海燕[1] 车伍[1] 

机构地区：[1]北京建筑工程学院城市雨水系统与水环境省部共建教育部重点实验室,北京100044 [2]平顶山工学院市政工程系,河南平顶山467001

出　　处：《中国给水排水》2010年第10期129-133,共5页China Water & Wastewater

基　　金：国家"十一五"科技支撑计划(2006BAJ08B04);北京市规划委员会科研专项基金资助项目(200503001);北京市属市管高等学校人才强教计划资助项目

摘　　要：随着城市化进程的加快、不透水面积的增加,雨水径流污染日益严重,雨水径流成为北京水环境的第二大污染源。雨水花园作为一种经济、适用且美观的LID/BMP措施,能有效去除径流中的污染物。2007年3月北京城区某办公大楼附近建造了一套以雨水花园为主要处理单元的雨水蓄渗系统,用于处理屋面雨水。2008年5月—7月,对该雨水花园系统进行了6场降雨的连续监测,结果表明:雨水花园对SS、COD、重金属(Pb、Zn、Cu、Fe)、浊度等均有较好的去除效果,出水pH值为6.5～7.2,但对TN、NO3-N、TP、PO43-P的去除效果较差。With the development of urbanization and increasing of impervious surfaces, runoff pollution becomes more and more serious. The stormwater runoff is the second largest pollution source of water environment in Beijing City. As an economical, suitable and artistic LID/BMP facility, rain garden can effectively remove pollutants from runoff. A set of storage-infiltration system using the rain garden as its main treatment unit to control the roof runoff was built in a lawn near an office building in Beijing City in March 2007. The continuous monitoring of six rain events from May to July 2008 was performed. The results indicate that the removal efficieneies of suspended solids, chemical oxygen demand, heavy metals （Pb, Zn, Cu and Fe） and turbidity are excellent except total phosphorus, phosphate-P, total nitrogen, and nitrate nitrogen, meanwhile, the effluent pH is between 6.5 and 7.2.

关 键 词：雨水花园 屋面径流 蓄渗系统 案例研究 

分 类 号：X52[环境科学与工程—环境工程]