%0 Journal Article
%T Characteristics and Contribution of the Strengthening Units of Composite Constructed Wetland for Treating Urban Sewage<br>复合人工湿地系统强化处理单元的运行特性与效果
%A REN Feng
%A LU Yi-xi
%A LIU Qin
%A TANG Yang-yang
%A WANG Shi-he
%A GAO Hai-ying
%A QIAO Hong-jie
%A WANG Wei-jin
%A <br>任峰
%A 陆忆夏
%A 刘琴
%A 汤杨杨
%A 王世和
%A 高海鹰
%A 乔红杰
%A 王为进
%J 环境科学
%D 2013
%I 
%X There are some defects in constructed wetland, including the uneven distribution of flow, easily blocked, lack of oxygen supply systems and the unsatisfactory phosphorus adsorption capacity of the substrates, etc. The research mainly studied the function and contribution of the pool of hydrolysis acidification, the natural reoxygenation/sinking device and strengthen slot for reducing nitrogen and phosphorus. The results showed the removal efficiency of COD and SS in hydrolysis-acidification pool accounted for 38.05% and 34.82% of the total removal efficiency of system. The SS removal efficiency of the natural reoxygenation/sinking device accounted for 22.01% of the total removal efficiency of system, and the concentration of DO kept above 2.5mg·L-1. The two strengthen slots can ensure the TP, TN, COD up to the standard of the level 1 of GB 18918-2002.
%K composite constructed wetland
%K the pool of hydrolysis acidification
%K natural reoxygenation
%K the strengthening units
%K operating performance<br>复合人工湿地
%K 水解酸化池
%K 自然复氧
%K 强化处理单元
%K 运行特性
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=64CD0AA99DD39F69401C615B85F123EF&aid=9C65539B20E123FC7E46818FDF500B6B&yid=FF7AA908D58E97FA&vid=339D79302DF62549&iid=0B39A22176CE99FB&sid=18F040DBCB74FFF9&eid=E406B4E9A1BA9D8C&journal_id=0250-3301&journal_name=环境科学&referenced_num=0&reference_num=15