%0 Journal Article
%T Degradation Mechanism and Efficiency of Organic Pollutants of Landfill Leachate in Different Redox Zones<br>渗滤液中有机物在不同氧化还原带中的降解机理与效率研究
%A DONG Jun
%A ZHAO Yong-sheng
%A ZHANG Wei-hong
%A ZHAO Xiao-bo
%A LIU Ying-ying
%A HAN Rong
%A <br>董军
%A 赵勇胜
%A 张伟红
%A 赵晓波
%A 刘莹莹
%A 韩融
%J 环境科学
%D 2007
%I 
%X A soil column filled with sandy soil was constructed to investigate degradation mechanism and efficiency of organic landfill leachate pollutants in subsurface environment.Experimental results indicated that iron reduction zone may be play an important role on degradation of organics,and its efficiency was up to 86.24% averagely,reduction zone for nitrate,sulfate and methanogenic followed,and that was 75.93%,79.81%,74.02% and 65.09% averaged,respectively.Anaerobic reducing environment could have played an important role on degradation of benzoxazole,antipyrine,indene,etc.naphthalene,cyclohexanone and part of cyclo-alkyl hydrocarbon,etc.Which were difficult to biodegrade.Maximum degradation efficiency of pollutants was different in different redox zones.For instance,in sulfate reduction zone,the highest degradation efficiency of 1,1,1-trichloroethane and 1,2-dimethylbenzene was 80% and 71.43%,respectively.The highest degradation efficiencies of TCE and MTBE were in nitrate reduction zone,and reached 81.25% a nd 92.58%.respectively;Benzene was degraded completely in sulfate reduction zone and iron reduction zone.
%K landfill leachate
%K redox zones
%K pollution plume
%K organic pollutants
%K degradation efficiency<br>垃圾渗滤液
%K 氧化还原带
%K 污染羽
%K 有机污染物
%K 降解效率
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=64CD0AA99DD39F69401C615B85F123EF&aid=6AAF17E16F3A6A1E&yid=A732AF04DDA03BB3&vid=D3E34374A0D77D7F&iid=9CF7A0430CBB2DFD&sid=E7B46CD86468D9A6&eid=28A5659E3BD66D6A&journal_id=0250-3301&journal_name=环境科学&referenced_num=0&reference_num=13