煤渣-草炭基质垂直流人工湿地系统对城市污水的净化效果  

Purification efficiency of vertical-flow wetland system constructed by cinder and turf substrate on municipal wastewater

作　　者：崔理华[1] 朱夕珍[1] 骆世明[1] 刘迎湖[1] 

机构地区：[1]华南农业大学环境科学与工程系,广州510642

出　　处：《应用生态学报》2003年第4期597-600,共4页Chinese Journal of Applied Ecology

基　　金：广东省科技创新百项工程项目 ( 2KM0 6 5 0 3S);广东省自然科学基金资助项目 ( 990 72 1) .

摘　　要：垂直流人工湿地系统不但具有较高的水力负荷率 ( 5 4～ 6 4cm·d-1) ,而且对有机物和N、P都具有较高的去除效果 .其对化粪池出水中的COD、BOD5、NH4 + N和总P的去除率分别为 76 %～ 87% ,88%～92 % ,75 %～ 85 %和 77%～ 91% .处理出水中COD、BOD5、NH4 + N和总P的平均浓度分别小于 6 0、2 0、2 5和 2 .0mg·L-1.植物种植试验结果表明 ,种植风车草可提高氨氮、总N和总P的去除率 ,分别为 2 %～3 %、4%～ 6 %、10 %～ 14% .Vertical-flow constructed wetlands (VFCWs) system not only has a higher hydraulic loading rate (54～64cm·d -1), but also has a good removal efficiency for organics, ammonia nitrogen (AN) and total phosphorus (TP). The removal efficiencies of COD, BOD 5, AN, and TP for septic tank effluent were 76～87%, 82～92%, 75～85% and 77～91%, respectively,and the average effluent concentrations of COD, BOD 5, AN, and TP in the treated effluent were less than 60, 20, 25 and 2.0 mg·L -1, respectively. A comparison of planted and unplanted columns showed that plantation of Cyperus alternifolius could increase the removal rates of AN, TN, and TP by 2～3%, 4～6%, and 10～14%, respectively.

关 键 词：人工湿地 城市污水 风车草 净化效率 

分 类 号：X703[环境科学与工程—环境工程]