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潜流-上行垂直流复合人工湿地对氮磷去除效果

帖靖玺;郑正;钟云;罗兴章;王勇;孔刚;于鑫   

  1. 南京大学环境学院污染控制与资源化国家重点实验室, 南京 210093
  • 收稿日期:2005-04-21 修回日期:2005-09-20 出版日期:2006-03-08 发布日期:2006-03-08

Removal of nitrogen and phosphorus by integrated subsurface flowupward vertical flow constructed wetland process

TIE Jingxi;ZHENG Zheng;ZHONG Yun;Luo Xingzhang;WANG Yong;KONG Gang;YU Xin   

  1. School of the Environment,State Key Laboratory of Pollution Control & Resource Reuse,Nanjing University,Nanjing 210093, China

  • Received:2005-04-21 Revised:2005-09-20 Online:2006-03-08 Published:2006-03-08

摘要: 研究了潜流-上行垂直流复合人工湿地工艺对NH4+-N、NO3--N、TN和TP的去除效果。在处理负荷为30 L·d-1,水力停留时间为4.8 d时,该工艺对NH4+-N、NO3--N、TN和TP具有良好的去除效果,平均去除率分别为95%、52%、79%和81%。对3种含氮化合物的去除效果可以根据运行时间分为两阶段,在两阶段中,对NH4+-N、NO3--N和TN的平均去除率分别为93%和99%,35%和98%,71%和98%。对TP的去除效果在整个试验过程中则保持稳定。

关键词: 植被盖度, 岭估计, 定量估测, RS, GIS

Abstract: This paper studied the removal effects of NH4+-N,NO3--N,TN and TP by the integrated subsurface flow-upward vertical flow constructed wetland process.When the treatment loading was 30 L·d-1 and the calculated hydraulic retention time (HRT) was 4.8 days,the process had good removals of NH4+-N,NO3--N,TN and TP,and the average removals were 95%,52%,79%,81%,respectively.According to the operating time,the removal efficiency of the three nitrides could be divided into two phases,with the corresponding removals of NH4+-N,NO3--N,TN being 93% and 99%,35% and 98%,and 71% and 98%,respectively,while the removal efficiency of TP was kept stable during the experiment.

Key words: Vegetation coverage, Ridge estimation, Quantitative estimation, RS, GIS