复合垂直流人工湿地填料层高度对污染物去除率的影响  

Influence of filling layer height of integrated vertical-flow constructed wetland on pollutant removal

作　　者：刘艳[1] 陈海波 邹琳[1] 

机构地区：[1]沈阳建筑大学市政与环境工程学院,辽宁沈阳110168 [2]中辽国际工程建设项目管理有限公司,辽宁沈阳110001

出　　处：《供水技术》2010年第3期17-19,共3页Water Technology

摘　　要：研究了复合垂直流人工湿地填料层高度对NH4+-N、TP、COD去除率的影响。结果表明,填料层高度越高,污染物去除率越高,但单位高度填料的去除效率下降,因此,通过增加填料层高度来提高污染物的去除率并不经济。随着流程的增加,NH4+-N、TP、COD去除率的变化趋势各不相同,湿地的表层对NH4+-N、COD、TP有较高的去除效率,但下行池表层比上行池表层的污染负荷高。Influence of filling layer height of integrated vertical-flow constructed wetland on the removal of NH4^＋ - N, TP and COD was investigated. The result showed that the higher the height of the filling layer was, the bigger the removal rate of the pollutants was, but the removal rate per unit of height of filling layer was decreased. Therefore, it was not economic to improve the removal rate just by means of increasing the height of the filling layer. The variations of removal rate for NH4^＋ - N, TP and COD were different with the increase of flow distance, e.g. the surface of wetland had higher removal rates on NH4^＋ - N, TP and COD, but the pollutant load of downward flow wetland surface was higher than upward flow wetland.

关 键 词：人工湿地 填料层高度 钢渣 NH4+-N COD TP 

分 类 号：X52[环境科学与工程—环境工程]