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。
This paper studied the removal effects of NH4^＋- N, NO3^- -N, TN and TP by the integrated subsurface flow-up-ward 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 effidency of TP was kept stable during the experiment.
出处
《生态学杂志》
CAS
CSCD
北大核心
2006年第3期265-269,共5页
Chinese Journal of Ecology
基金
国家"863"资助基金项目(2002AA601012-1B)。
