采用垂直上升流-水平潜流组合人工湿地装置,对处理污水处理厂生化尾水进行深度处理,选用陶粒、沸石和砾石3种填料,美人蕉、再力花和菖蒲3种植物配置成6种不同的组合.8个月的试验结果表明,水力负荷为0.5 m3/(m2·d),试验装置对NH3-N和TP的去除效果较好,NH3-N平均去除率在69.3％以上,6组试验装置中4组的TP平均去除率在50％以上；COD,N03--N和TN去除效果较差,平均去除率分别在12.5％～ 15.1％,-1.8％ ～ 9.6％和6.3％～ 17.9％之间.以陶粒为填料种植美人蕉的组合湿地装置脱氮除磷效果最好,NH3-N,TN,N03--N,TP的平均去除率分别达到80.9％,17.9％,9.6％,77.5％.%The vertical upwelling-horizontal subsurface flow hybrid constructed wetland device was used to deal with biochemical tail water. Fillers of ceramisite、zeolite and gravel, with plants of cannas、thalia dealbatas and calamus were chosen to configure six different combinations. After 8 months' experiments, results showed that hydraulic loading was 0.5 m3/(m2·d). The removal effect of nitrogen and phosphorous was much better by using this test device. The average removal rate of ammonia nitrogen was above 69.3%. The average removal rate of total phosphorus was more than 50% in 4 groups of 6 test devices. However, the removal efficiency was poor for COD, nitrate and total nitrogen ,which was 12.5% ~ 15.1%,-1.8% ~ 9.6% and 6.3% ~ 17.9%, respectively. Removal efficiency of nitrogen and phosphorus was the best by using ceramsite filler-canna combination wetland device. The average removal rate of ammonia nitrogen, total nitrogen, nitrate nitrogen and total phosphorus was 80.9%, 17.9%,9.6% and 77.5%, respectively.
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