集中式饮用水水源的生态净化中试研究  

Pilot Study on Ecological Purification of Centralized Drinking Water Sources

作　　者：仓基俊 罗利民 何玉良 郑军田 

机构地区：[1]盐城市水利局,江苏盐城224002

出　　处：《中国给水排水》2011年第17期59-61,共3页China Water & Wastewater

基　　金：江苏省水利科技项目(2010022)

摘　　要：采用生态湿地净化微污染水源水。结果表明,在水力负荷为450 m3/d的运行条件下,生态湿地净化系统对微污染水源水的净化效果较好,尤其是对NH4+-N、TP的平均去除率分别在40%和85%以上。由于进水CODMn值偏低,对CODMn的平均去除率只有12%。整个湿地系统出水CODMn、NH4+-N和TP浓度稳定达到《地表水环境质量标准》(GB 3838—2002)中Ⅲ类水质的要求。但湿地系统对TN的去除效果相对较差,主要是因为湿地系统的反硝化能力较弱,出水TN主要以硝态氮为主。因此,需调整湿地结构来构建厌氧环境,以提高湿地系统对TN的去除率。The ecological wetland was used for purification of micro-polluted source water. The results show that with hydraulic loading of 450 m3/d, the ecological wetland has good purification efficiency of micro-polluted source water. The average removal rates of NH4＋ - N and TP are above 40% and 85% respectively, and the average removal rate of CODMn is only 12% due to its lower influent concentration. The concentrations of NH4＋ - N, TP and CODM, in the effluent meet Ⅲ criteria specified in the Environmental Quality Standards for Surface Water （GB 3838 -2002 ）. But the removal rate of TN is low because of weak denitrifieation in ecological wetland system. So wetland structure should be regulated to improve removal of TN.

关 键 词：微污染水源水 生态湿地 净化 

分 类 号：R123.1[医药卫生—环境卫生学]