水生植物缓冲带对洱海流域低污染水中氮的净化效果  

The Nitrogen Removal Effect of Aquatic Plant Buffer Strip on Slightly Polluted Water in the Erhai Lake Watershed

作　　者：赵斌[1] 李明[1] 卢少勇[2] 黄季超 ZHAO Bin;LI Ming;LU Shaoyong;HUANG Jichao(Yuxi Normal University,Yuxi,Yunan 653110;Chinese Research Academy of Environmental Sciences,Beijing 100012)

机构地区：[1]玉溪师范学院,云南玉溪653100 [2]中国环境科学研究院,北京100000

出　　处：《玉溪师范学院学报》2019年第6期52-57,共6页Journal of Yuxi Normal University

基　　金：云南省科技厅地方本科高校(部分)基础研究联合专项青年项目“抚仙湖流域低污染水在生物架-碳纤维耦合人工湿地中的净化机制”(项目编号:2017FH001-100);国家水体污染控制与治理科技重大专项(项目编号:2012ZX07105-002,2013ZX07101-014).

摘　　要：针对洱海流域低污染水负荷较大的现状,通过构建两条水生植物缓冲带对其进行处理研究,旨在摸清水生植物缓冲带处理洱海低污染水中氮的实际能力.试验结果表明,水生植物条带对洱海流域低污染水中氮的去除效果较好,荇菜和芦苇条带总氮平均去除率分别达到74.2和72.3%.在TN去除率为70%时,荇菜缓冲带的最佳宽度最小,为3.07m;芦苇缓冲带的最佳宽度次之,为3.25 m,种植水生植物的缓冲带最佳宽度均小于空白缓冲带的5.02 m.In the study aiming at cuttinglow-pollution water burden in ErhaiLake watershed,two aquatic plants buffer strips were constructed to test their capability of removing nitrogen from slightlypolluted water.The experimental result shows that aquatic plant buffer strips can remove nitrogen from low-pollution water effectively.Nymphoidespeltata and reed can remove 74.2%and 72.3%total nitrogen onaverage.With the removal rate of TN at 70%,the optimal width forNymphoidespeltatum buffer strip is 3.07 m,for reed buffer strip 3.25 m,and for the blank buffer strip 5.02 m.

关 键 词：洱海 低污染水 水生植物缓冲带 最佳宽度 

分 类 号：X522[环境科学与工程—环境工程]