%0 Journal Article
%T Performance of Treatment Wetland Systems for Surface Water Quality Improvement<br>人工湿地系统用于地表水水质改善的效能及特征
%A LIU Hong
%A DAI Ming-li
%A LIU Xue-yan
%A OUYANG Wei
%A LIU Pei-bin
%A <br>刘红
%A 代明利
%A 刘学燕
%A 欧阳威
%A 刘培斌
%J 环境科学
%D 2004
%I 
%X Intercropped with Phragmites communis and Typha angustifolia, subsurface flow constructed wetland systems (CWs) with the surface area of 3 x 20m x 2m were established beside Guanting Reservoir, an important source water base of Beijing. The treatment performance of the systems with different season were studied, the impacts of influent concentration, hydraulic loading rate and water temperature on contaminations removal were analyzed. The result showed that the subsurface flow CWs had the better decontamination effect to micro-pollution surface water. The relationship between the concentrations of CODMn and NH4+ -N in inflow and outflow followed the linear equation. The removal rates of total nitrogen (TN) and total phosphorus (TP) in the systems were 20%-60% and 30%-45%, respectively. The removal rates of contaminations were reduced with the decrease of water temperature and the increase of hydraulic loading rate, the removal rates of CODMn, N4+ -N and TN showed the positive correlation with their inflow concentration, but the removal rate of TP showed the negative correlation with its inflow concentration. Operation and management considerations of the subsurface flow CWs in winter were investigated in this study.
%K constructed wetland
%K water quality improvement
%K surface water
%K Guanting reservoir<br>人工湿地
%K 水质改善
%K 地表水
%K 官厅水库
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=64CD0AA99DD39F69401C615B85F123EF&aid=77E7FB7F6DA3519E&yid=D0E58B75BFD8E51C&vid=C5154311167311FE&iid=E158A972A605785F&sid=8BD23BD67BF01A5C&eid=CB423C9A71560A74&journal_id=0250-3301&journal_name=环境科学&referenced_num=23&reference_num=21