复合垂直流人工湿地净化污水厂尾水的研究  

Advanced Purification of Effluent from Sewage Treatment Plant by Integrated Vertical-flow Constructed Wetland

作　　者：谷先坤[1] 王国祥[1] 刘波[1] 杜旭[1] 

机构地区：[1]南京师范大学地理科学学院江苏省环境演变与生态修复重点实验室,江苏南京210046

出　　处：《中国给水排水》2011年第3期8-11,共4页China Water & Wastewater

基　　金：江苏省重大科技支撑与自主创新专项(EB2008677)

摘　　要：采用复合垂直流人工湿地处理模拟污水厂二级处理出水(尾水),研究了对主要污染物指标的去除效果。结果表明,在进水负荷为0.32 m3/(m2.d)、水力停留时间为3 d的条件下,系统对浊度、COD、NH4+-N、TN、TP的平均去除率分别为65.47%、46.87%、50.06%、52.88%、70.06%,出水COD、TN、TP浓度达到了《城镇污水处理厂污染物排放标准》(GB 18918—2002)的一级A标准,出水NH4+-N浓度达到了一级B标准。与其他研究结果相比,在污染负荷、面积、湿地深度等条件基本一致的情况下,该湿地系统具有更好的脱氮除磷效果。The integrated vertical-flow constructed wetland was used for advanced purification of the secondary effluent from sewage treatment plant, and the removal efficiency of pollutants was investigated. The results show that under the conditions of influent load of 0.32 m3/（m2 · d） and HRT of 3 d, the average removal rates of turbidity, COD, NH4^＋ -N, TN and TP are 65.47% , 46.87% , 50.06% , 52.88% and 70.06% respectively. The effluent COD, TN and TP meet the first level A criteria specified in Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant （GB 18918 -2002） , and NH4^＋ -N meets the first level B criteria. Compared with other researches, this constructed wetland has better removal efficiency of N and P under the same conditions of pollution load, area and wetland depth.

关 键 词：复合垂直流人工湿地 尾水 净化效果 

分 类 号：X703[环境科学与工程—环境工程]