人工湿地对化粪池出水净化效果的对比研究  

Comparison of Purification Efficiency of Septic Tank Effluent by Artificial Wetland

作　　者：徐德星[1] 海热提[1] 丁文明[1] 张雷[2] 郑丙辉[2] 

机构地区：[1]北京化工大学环境科学与工程技术中心,北京100029 [2]中国环境科学研究院河流与海岸带环境研究室,北京100012

出　　处：《环境科学与技术》2009年第8期164-168,共5页Environmental Science & Technology

摘　　要：对比了四种复合人工湿地系统对化粪池出水COD、TP、NH3-N和SS的净化效果,试验系统均采用间歇式进水,时间间隔为1d。为期7个月的运行结果表明,系统出水水质均达到城镇污水处理厂污染物排放标准(GB18918-2002)中的二级标准,其中潜流(水平流)+垂直流(上行流)湿地系统对COD的去除效果最好;垂直流(下行流)+垂直流(上行流)湿地系统对TP、NH3-N、SS去除效果最好;选用含钙石灰石和含铁矿粉做填料、采用间歇式的运行方式可以提高湿地系统对污染物的去除率。Under batch-flow conditions,some parameters including COD,TP,NH3-N and SS were measured with 1day internal in 4 combined artificial wetlands.Results of 7 months operation showed that the effluent can meet Grade II of discharge standard of pollutants for municipal wastewater treatment plant GB18918-2002.In which the removal efficiency of COD was the best in subsurface flow（horizontal flow）and vertical flow（upward flow）constructed wetland system,while removal efficiency of TP,NH3-N and SS were the best in the vertical flow（downward flow）and vertical flow（upward flow）constructed wetland system.Selecting calcium containing limestone and iron containing ore powder as substrate,using batch flow operation mode could improve removal efficiency of pollutants in constructed wetland system.

关 键 词：复合人工湿地 间歇式 潜流 垂直流 化粪池出水 净化效果 

分 类 号：X703.1[环境科学与工程—环境工程]