Treatment Efficiency of Integrated Vertical-Flow Constructed Wetland for Saline Wastewater  

作　　者：WANG Qishuo YANG Lei WU Zhenbin 

机构地区：[1]State Key Laboratory of Freshwater Ecology and Biotech-nology, Institute of Hydrobiology, Chinese Academy of Sciences,Wuhan 430072, Hubei, China [2]Graduate University of Chinese Academy of Sciences,Beijing 100049, China [3]Department of Marine Environment and Engineering,Sun Yat-Sen University, Kaohsiung 80424, Taiwan, China

出　　处：《Wuhan University Journal of Natural Sciences》2010年第6期544-548,共5页武汉大学学报（自然科学英文版）

基　　金：Supported by the National High Technology Research and Development Program of China (863 Program) (2009ZX07106-002-004);the National Natural Science Foundation of China (50808172,30870221)

摘　　要：The integrated vertical-flow constructed wetland（IVCW） was simulated with three suits of designed experiment columns planted with Kandelia candel.Units A,B and C were irrigated with sewage of different salinity（A：10‰ B：20‰,C：30‰）,respectively.The removal rates of dissolved organic carbon（DOC）,NH3-N and NO3--N dropped 90.4%-48.6%,80.2%-40.3% and 84.8%-60.9%,respectively,when salinity increases from 10‰ to 30‰.The removal rate of TP increased 14%-31.2%,oppositely.A 20-day inflow salinity drastic change shock affective trial was done on units D and E.Unit D was used as a control and irrigated with saline sewage（20‰）.Unit E was irrigated with sewage with low salinity（5‰） as a salinity drastic change shock on the third and fourth days.DOC,NH3-N and NO3--N removal efficiency of unit E showed a three-stage process of change,＂rapidly decrease,increase beyond the normal standard,and then back to the normal standard＂.TP removal value was negative during the 2-day shock period.The integrated vertical-flow constructed wetland（IVCW） was simulated with three suits of designed experiment columns planted with Kandelia candel.Units A,B and C were irrigated with sewage of different salinity（A：10‰ B：20‰,C：30‰）,respectively.The removal rates of dissolved organic carbon（DOC）,NH3-N and NO3--N dropped 90.4%-48.6%,80.2%-40.3% and 84.8%-60.9%,respectively,when salinity increases from 10‰ to 30‰.The removal rate of TP increased 14%-31.2%,oppositely.A 20-day inflow salinity drastic change shock affective trial was done on units D and E.Unit D was used as a control and irrigated with saline sewage（20‰）.Unit E was irrigated with sewage with low salinity（5‰） as a salinity drastic change shock on the third and fourth days.DOC,NH3-N and NO3--N removal efficiency of unit E showed a three-stage process of change,＂rapidly decrease,increase beyond the normal standard,and then back to the normal standard＂.TP removal value was negative during the 2-day shock period.

关 键 词：integrated vertical-flow constructed wetland（IVCW） saline wastewater treatment performance salinity shock 

分 类 号：X714.03[环境科学与工程—环境工程] X703.1