生物滞留池水质效应的模拟试验-陕西师范大学学报期刊社网站

陕西师范大学学报（自然科学版）

资源与环境科学

生物滞留池水质效应的模拟试验

潘国艳1, 夏军1,3, 张翔1, 王红萍2, 刘恩民3

(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 武汉大学资源与环境科学学院，湖北武汉 430072; 3 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)

潘国艳，女，博士，主要从事水文水资源方面的研究.E-mail: guoyan.pan@whu.edu.cn.

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.

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

收稿日期：

2012-05-12

中图分类号：

X505； X522

文献标识码：

文章编号：

1672-4291(2012)06-0097-05

基金项目：

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).

Doi:

Simulation experiments on pollutant removal of bioretention units

PAN Guo-yan1， XIA Jun1,3， ZHANG Xiang1， WANG Hong-ping2， LIU En-min3

(1 State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan 430072, Hubei, China;2 School of Resource and Environmental Science, Wuhan University,Wuhan 430072, Hubei, China; 3 Key Laboratory of Water Cycle and Related Land Surface Processes，Institute of Geographic Sciences and Natural Resources Research，Chinese Academy of Sciences，Beijing 100101，China)

Abstract:

Pollutants concentration in inflow and outflow of two bioretention units 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 chemical 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.

KeyWords:

bioretention units; water quality effects; pollutants concentration; pollutants load; non-point pollution; urban storm water management