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.
出处
《环境科学与技术》
CAS
CSCD
北大核心
2009年第8期164-168,共5页
Environmental Science & Technology
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
combined artificial wetland
batch flow
subsurface flow
vertical flow
septic tank effluent
purification efficiency
作者简介
徐德星（1982-），男，硕士研究生，主要从事水体富营养化及水处理方面的研究，（手机）13810393042（电子信箱）xudexing2009@163．com
通讯作者，男，（电话）010-644413170（电子邮箱）hjzhx@mail.buct．edu.cn。
