人工湿地不同级配填料净水效果研究  

Purifying Effect of Different Gradations of Fillers on Water in Constructed Wetland

作　　者：赵占军[1] 王玉杰[1] 王云琦[1] 

机构地区：[1]北京林业大学水土保持学院水土保持与荒漠化防治教育部重点实验室,北京100083

出　　处：《湖南农业科学》2011年第7期83-85,共3页Hunan Agricultural Sciences

基　　金："948"国家林业局引进项目资助(2007-4-14)

摘　　要：人工湿地作为一种生态工程水处理技术,已经开始应用于处理农业径流污染,对人工湿地填料的研究也已成为重点。以沸石、圆陶粒、粗砂、页岩、砾石为填料,研究了在不同级配组合情况下,在中试垂直人工湿地模型中的净水效果。研究表明:1号、5号和7号级配方案对氨氮的去除效果都达到了60%以上,对TN的去除率达到40%以上;2号和5号级配方案对CODcr的去除率达到40%以上;5号级配方案对污染物整体的去除效果最好。The constructed wetland as a water treatment technology for ecological engineering has been applied to deal with agricultural runoff pollution,and the fillers of constructed wetland has become a priority.Taking zeolite,round haydite,coarse sand,shale and gravel as filler to study the purifying effect of different gradations of fillers on water in vertical flow constructed wetland.The results showed that the removal rates of grading program No.1,No.5 and No.7 on content of NH3-N and content of TN in water were more than 60% and more than 40%,respectively;the removal rate of grading program No.2 and No.5 on content of CODcr in water was more than 40%;grading program No.5 had the best removal effect on the pollutants in water.

关 键 词：人工湿地 填料 级配 净水效果 

分 类 号：S157[农业科学—土壤学]