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《Environmental Science》 2009-03
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Characteristics of Dissolved Organic Matter (DOM) from Leachate

FANG Fang,LIU Guo-qiang,GUO Jin-song,LIU Zhi-ping (Key Laboratory of Three Gorges Reservoir's Eco-Environment,Ministry of Education,Chongqing University,Chongqing 400045,China)  
The dissolved organic matter(DOM) was isolated and purified from landfill and incineration leachate,and all the isolated fractions were characterized using acid-base titration,UV-VIS(ultraviolet-visible),FTIR spectroscopic methods and element measurement.As shown by acid-base titration, the total acidity and carboxylic groups followed HyIFAHA and FAHAHyI respectively,and all the samples from incineration leachate had more acidity and carboxylic groups than those from landfill leachate.UV-VIS analysis showed that the humification of humics in leachate followed C-HAL-HAI-HA and L-FAI-FA.FTIR spectroscopic indicated that the humics from the same leachate had similar molecular structure,and L-HA had more aromatic groups than L-FA,while L-FA had more acid groups.Element measurement indicated that the content of N in leachate humic substance was higher than that from other surroundings,and the aromatic content in humic substance from landfill leachate was higher than that from incineration leachate,which was also obtained by UV-VIS analysis.
【Fund】: 国家自然科学基金项目(50608071);; 教育部重大项目(308020)
【CateGory Index】: X703
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