不同类型湿地对城市污水净化能力的比较研究  

A Comparative Study of Different Types of Wetland for the Purification Capacity of Urban Wastewater

作　　者：姜新佩[1] 张欢[1] 

机构地区：[1]河北工程大学水电学院,邯郸056038

出　　处：《科学技术与工程》2014年第35期313-316,共4页Science Technology and Engineering

基　　金：河北省科学技术研究与发展计划项目(13273603D)资助

摘　　要：为了研究在实际应用中使得污水净化效果最佳的湿地形式,对两组不同形式的人工湿地对城市污水的净化能力进行了比较。通过对两组湿地中各个水质指标的检测发现:两组人工湿地对TN、TP、浊度、CODMn的去除率分别为40%、96%、93%、53%和26%、83%、90%、60%,除了TN外,其他出水水质指标均达到GB 18918—2002的二级排放标准;砾石基质的人工湿地适合处理磷含量高的污水,但不适合处理氮含量高的污水,为使得氮含量达到城镇污水污染物排放标准,建议引入沸石基质,和砾石基质一起作为组合基质,或者引入去氮能力强的植物。In order to find a form of wetland which works best in the treatment of wastewater, the purification capacity of the two different forms of constructed wetland were compared. There are some detections according to the detecting of water quality index in each wetland unit. In addition to TN, other water quality indicators have reached the secondary emission standard of GB18918 -2002. And the two constructed wetland＇ s removal rate of the TN, TP, turbidity, CODMn are 40%, 96% ,93% , 53% and 26% , 83% , 90% , 60%. Gravel matrix constructed wetland is suitable to handle the high phosphorus content of sewage, but not to the high nitrogen content. In order to make the content of nitrogen to reach the standards of municipal wastewater pollutant emission, it is a recommend to introduce zeolite matrix, and with gravel matrix together as a combination matrix, or introduce the plants which have a better ability of nitrogen removal.

关 键 词：净化能力 去除率 基质 沸石 

分 类 号：X171[环境科学与工程—环境科学]