摘要
分别采用推流式潜流湿地、往复流式潜流湿地、芦苇床表流湿地、蒲草床表流湿地四种人工湿地对微污染原水进行预处理,对比研究了四种人工湿地对总氮、氨氮、硝态氮及总磷的去除效果。结果表明,蒲草床表流湿地对总氮具有较高的去除率,在夏季和秋季去除率基本保持在60%～90%之间,四种湿地对总磷的去除率既不明显也不稳定。
The treatment efficiency with four kinds of constructed wetlands （ direct-flow subsurface flow wetlands, to-and-fro-flow subsurface flow wetlands, surface flow wetlands with reed and surface flow wetlands with cattail） were comparaed for a micro-polluted raw water. The removal efficiencies of TN, TP, NH3 - N, NO3^- - N and NO2^- - N were determined. The result indicated that the removal efficiency of TN in surface flow wetlands with cattail was the best, and the removal rate was between 60% - 90% in summer and autumn. The removal efficiencies of TP in four kind of wetlands were unconspicuous and unstable.
出处
《供水技术》
2009年第2期44-46,共3页
Water Technology
关键词
人工湿地
微污染原水
去除率
constructed wetland
micro-polluted raw water
removal rate
