生物滞留系统生态削减路面径流污染技术  

Ecological Reduction Technology of Road Runoff Pollution by Bioretention System

作　　者：曹馨月 骆辉[1] 陈忱 王重皓 丁子杰 荆肇乾[1] CAO Xinyue;LUO Hui;CHEN Chen;WANG Chonghao;DING Zijie;JING Zhaoqian(College of Civil Engineering,Nanjing Forestry University,Nanjing 210037,China)

机构地区：[1]南京林业大学土木工程学院,江苏南京210037

出　　处：《净水技术》2020年第6期150-157,共8页Water Purification Technology

基　　金：国家科技支撑计划项目(2015BAL02B04);住房和城乡建设部科学技术项目(2015-K7-012);南京林业大学大学生科技创新资助项目(2019NFUSPITP0490,2019NFUSPITP0509)。

摘　　要：为了强化生物滞留技术削减路面径流污染负荷,文中设计对照组、传统型和强化型3组试验,介绍了不同生物滞留池对地表径流中总磷(TP)、氨氮(NH4^+-N)、硝酸盐氮(NO3^--N)和总氮(TN)的去除效果,并采用综合水质评价法对试验结果进行评价,对其去除特性进行探讨。结果显示:对于路面径流污染物的处理,3套装置均有较好效果,削减路面径流污染效果排序:强化型>传统型>对照组。吸附层采用混合填装方式、设有蓄水区、种植麦冬的生物滞留系统对于路面径流污染物的处理效果优于吸附层采取分层填装方式、未设置蓄水区、未种植植物组。研究成果可为海绵城市道路生物滞留系统建设提供一定的技术指导。In order to strengthen bioretention technology to reduce road runoff pollution load,the paper introduces three groups of experiments,including control group,traditional type and intensive type.In addition,the paper reveals the removal effect of total phosphorus(TP),ammonia nitrogen(NH+4-N),nitrate nitrogen(NO-3-N)and total nitrogen(TN)in surface runoff with different bioretention ponds.The results of the experiment were evaluated by comprehensive water quality evaluation method and their removal characteristics were discussed.Results showed that three sets of devices had good effect in treating road runoff pollutants,and the effect of reducing road runoff pollution ranked:intensive type>traditional type>control group.When adsorption layer of bioretention system adopted mixed filling method,with water storage area and planting Ophiopogon japonicus,the treatment effect of road runoff pollutants was better than that of the system with layered filling,no water storage area and no planting plants.Results could provide some technical guidance for the construction of road bioretention system in sponge city.

关 键 词：生物滞留系统 路面径流 海绵城市 生态削减 氮磷 

分 类 号：TU992[建筑科学—市政工程]