%0 Journal Article
%T Effect of substrate structure on purification performances of horizontal subsurface flow constructed wetlands<br>基质结构对水平潜流人工湿地净化效果影响
%A Chen Tengshu
%A Bai Shaoyuan
%A Wang Dunqiu
%A Xu Jian
%A Lin Yuqian
%A <br>陈腾殊
%A 白少元
%A 王敦球
%A 许健
%A 林雨倩
%J 环境工程学报
%D 2012
%I 
%X In order to investigate the effect of substrate structure on the pollutant removal performance of horizontal subsurface flow constructed wetlands (HSCWs),two pilot-scale HSCWs were constructed to treat the effluents of municipal wastewater treatment plants in parallel experiments.The experimental results showed that the COD,NH4+-N and TP removal efficiencies of the HSCWs filled with well-mixed quartz sand (range 1~7 mm) were 49.5%,40.1% and 56.1%,respectively.In contrast,the HSCWs with multi-layered filling structure of quartz sand (range 1~7 mm) reached on an average 53.7%,60.4% and 68.6% for COD,NH4+-N and TP,respectively.The statistical results showed that there was significant difference on all pollutants removal between the well-mixed substrate structure and multi-layered structure (p<0.05).Furthermore,significant difference among the various HRTs was also observed (p<0.05).The removal efficiencies increased with an increase of HRTs.It seemed that the 36 h HRT was adequate for acceptable removal efficiencies.
%K horizontal subsurface flow constructed wetlands
%K substrate structure
%K optimization
%K analysis of variance<br>潜流人工湿地
%K 基质结构
%K 优化
%K 方差分析
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=92E6F4267FD4CBCB51B1E49E014D8054&jid=3567BD61129AA59043F5DE01F8815DB5&aid=9A13AEDC57801D68FC12CA9CBCFEAA83&yid=99E9153A83D4CB11&vid=B31275AF3241DB2D&iid=F3090AE9B60B7ED1&sid=B4901E74650F6E9C&eid=45E2A094A110238E&journal_id=1673-9108&journal_name=环境工程学报&referenced_num=0&reference_num=22