生物滞留池水质效应的模拟试验  

Simulation experiments on pollutant removal of bioretention units

作　　者：潘国艳[1] 夏军[1,2] 张翔[1] 王红萍[3] 刘恩民[2] 

机构地区：[1]武汉大学水资源与水电工程科学国家重点实验室,湖北武汉430072 [2]中国科学院地理科学与资源研究所陆地水循环及地表过程重点实验室,北京100101 [3]武汉大学资源与环境科学学院,湖北武汉430072

出　　处：《陕西师范大学学报（自然科学版）》2012年第6期97-101,共5页Journal of Shaanxi Normal University：Natural Science Edition

基　　金：中国博士后科学基金资助项目(2012M511667);中央高校基本科研业务费专项资金项目(206274693);国家自然科学基金资助项目(71073115)

摘　　要：通过模拟20场径流过程,对生物滞留池的水质过程进行了试验监测.结果显示:滞留池对总氮的平均去除效率为17.63%,对总磷和化学需氧量(COD)的平均去除效率分别为70.51%、58.84%;对污染物总量的降低效率大于浓度的消减率,对总磷和COD总量的消减率达到60%以上,对总氮量的去除效率达到28.20%;草皮和小叶黄杨对总氮量、总磷量和COD的去除率接近.试验表明生物滞留池系统是控制雨水径流引起的城市非点源污染的较好工程措施.Pollutants concentration in inflow and outflow of two bioretentlon umts were determined by twenty runoff events simulation. Results showed that mean average total nitrogen （TN） removal efficiency were 17.63%, for total phosphorus（TP） and chernical oxygen demand （COD） were 70.51%, 58.84% respectively. TN load removal efficiency were 28.20%, for TP and COD pollutants load reduction rate of more than 60%. Pollutants removal efficiency for Tau fescue and Buxus was approximate. The test proved that the bioretention unit was a useful engineering measure to control urban non-point source pollution caused by stormwater runoff.

关 键 词：生物滞留池 水质效应 污染物浓度 污染物总量 非点源污染 都市雨水管理 

分 类 号：X505[环境科学与工程—环境工程] X522