改良填料生物滞留系统除污效果的季节变化  

Seasonal changes in the decontamination effect of the biological retention system with improved filler

作　　者：潘伟亮[1] 罗玲利 王书敏 李强 温灵 周彦 PAN Weiliang;LUO Lingli;WANG Shumin;LI Qiang;WEN Ling;ZHOU Yan(Key Laboratory of Ministry of Education of Hydraulic and Water Transportation Engineering,Chongqing Jiaotong University,Chongqing 400074,China;Chongqing Key Laboratory of Environmental Material and Restoration Technology,Chongqing 402160,China;Bureau of Ecology and Environment of Tongliang District,Chongqing 402560,China)

机构地区：[1]重庆交通大学水利水运工程教育部重点实验室,重庆400074 [2]环境材料与修复技术重庆市重点实验室,重庆402160 [3]重庆市铜梁区生态环境局,重庆402560

出　　处：《环境工程学报》2021年第5期1763-1772,共10页Chinese Journal of Environmental Engineering

基　　金：重庆市科技局社会民生项目(cstc2017shmsA20011);住房和城乡建设部科学技术计划项目(2016-K6-025);重庆市教委重点项目(KJZD-K201901304);西北旱区生态水利国家重点实验室(西安理工大学)开放基金课题(2019KFKT-12)。

摘　　要：为分析径流污染物在生物滞留系统中去除效果的季节特征,设计了改良生物滞留系统,以火山岩和海绵铁为系统填料,种植植物为麦冬和金叶女贞,以不同季节雨水径流在系统中进出水为研究对象,考察了TN、氨氮、硝态氮、TP、磷酸盐及TOC等径流污染物的去除情况。结果表明:TN在春夏秋冬四季的平均去除率分别为53.69%、61.03%、54.68%、69.53%;TP分别为98.20%、92.75%、97.99%、99.24%;TOC分别为52.01%、58.01%、22.87%、22.99%。系统TN、TP和磷酸盐去除率受季节影响较小;氨氮、硝态氮和TOC受季节影响较大,其中氨氮冬季去除率最高,硝态氮和TOC的夏季去除率最高。与其他研究对比,改良填料生物滞留系统去除污染物较其他单一填料效果好,而脱氮及TOC的去除效果略次于其他改良填料。In order to analyze the removal effects of runoff pollutants by the biological retention system in different seasons,the improved biological retention system was designed.The fillers for the system were volcanic rock and sponge iron,and the plants were Ophiopogon japonicus and Ligustrum lucidum.In different seasons,The removal of runoff pollutants:TN,ammonia nitrogen,nitrate nitrogen,TP,phosphate and TOC were studied through analysis of water quality of the influent and effluent of the improved biological retention system.The results showed that the average removal rates of TN,TP and TOC in spring,summer,autumn and winter were 53.69%,61.03%,54.68%,69.53%;were 98.20%,92.75%,97.99%,99.24%;were 52.01%,58.01%,22.87%,22.99%,respectively.The removal rates of TN,TP and phosphate in the system were slightly dependent on seasons,while ammonia nitrogen,nitrate nitrogen and TOC were significantly dependent on seasons,of which the removal rate of ammonia nitrogen was the highest in winter,while nitrate nitrogen and TOC were the highest in summer.Compared with other studies,the improved biological retention system had better pollutant removal efficiency than other single fillers,while the denitrification and TOC removal efficiencies were slightly inferior to other modified fillers.

关 键 词：改良生物滞留系统 雨水径流 污染物 季节特征 

分 类 号：X52[环境科学与工程—环境工程]