人工湿地处理永定河微污染河水试验研究  

STUDY ON THE EFFICIENCY OF DIFFERENT CONSTRUCTED WETLAND PROCESS FOR MICRO-POLLUTED RIVER WATER TREATMENT

作　　者：田景宏[1] 黄柄彬 

机构地区：[1]北京科技大学土木与环境工程学院,北京100083 [2]北京水利科学研究所,北京100044

出　　处：《水处理技术》2009年第6期82-86,共5页Technology of Water Treatment

基　　金：中德合作官厅水库水体复恢项目(2002DFG00023)

摘　　要：采用2种不同工艺人工湿地对永定河微污染河水净化处理,长期监测表明,植物塘人工湿地工艺对COD平均去除率为26.3%,砂滤连续人工湿地工艺对COD平均去除率为25.1%;两种工艺SS去除率均为65%;植物塘人工湿地工艺TN去除率平均29%,砂滤人工湿地工艺平均21%;TP去除率在植物塘湿地工艺中平均31%,砂滤湿地工艺中平均38%。湿地中溶解氧浓度实测显示,植物塘湿地工艺形成相对较好为好氧区、兼性区和厌氧区,有利于水体的硝化和反硝化脱氮反应。砂滤人工湿地工艺,通过填料、植物和沉淀过滤作用,TP去除率高。The long-term monitoring results of different processes of constructed wetland shown that the efficiency of two kinds of constructed wetland is almost same in general. The average COD removal rate of the ＂plants pond＋wetland＇and ＂sand filter＋wetland＂ is 26.3% and 25.1%, respectively. The SS removal rate is averagely 65% in each. The TN removal rate of ＂plants pond＋wetland＇is 29%, which is higher than removal rate from ＂sand filter ＋wetland＂ method （21%）; in contrast, the TP removal rate of ＂sand filter＋wetland＂ is higher than the removal rate of ＂plants pond＋wetland＂, which are 38% and 31% in average. The process of ＂Plants pond＋wetland＂ has created a favorable aerobic zone, transition zone and anaerobic zone, which is good for nitrification and de-nitrification. The wetland material, plants and sedimentation have played an important role for the removal of TP.

关 键 词：不同人工湿地工艺 污染物 去除率 

分 类 号：X522[环境科学与工程—环境工程]