垃圾渗滤液中溶解有机质与内分泌干扰物的吸附机理

张彩香; 王焰新; 祁士华; 杨志华

Volume 33 Issue 3

May 2008

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Article Navigation > Earth Science > 2008 > 33(3): 399-404

ZHANG Cai-xiang, WANG Yan-xin, QI Shi-hua, YANG Zhi-hua, 2008. Adsorption Mechanisms between Dissolved Organic Matter and Endocrine Disruptors from Landfill Leachate. Earth Science, 33(3): 399-404.

Citation:

ZHANG Cai-xiang, WANG Yan-xin, QI Shi-hua, YANG Zhi-hua, 2008. Adsorption Mechanisms between Dissolved Organic Matter and Endocrine Disruptors from Landfill Leachate. Earth Science, 33(3): 399-404.

ZHANG Cai-xiang, WANG Yan-xin, QI Shi-hua, YANG Zhi-hua, 2008. Adsorption Mechanisms between Dissolved Organic Matter and Endocrine Disruptors from Landfill Leachate. Earth Science, 33(3): 399-404.

Citation:

ZHANG Cai-xiang, WANG Yan-xin, QI Shi-hua, YANG Zhi-hua, 2008. Adsorption Mechanisms between Dissolved Organic Matter and Endocrine Disruptors from Landfill Leachate. Earth Science, 33(3): 399-404.

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Adsorption Mechanisms between Dissolved Organic Matter and Endocrine Disruptors from Landfill Leachate

Key Laboratory of Biogeology and Environmental Geology of Ministry of Education, China University of Geosciences, Wuhan 430074, China

Received Date: 2008-03-11
Publish Date: 2008-05-25

Abstract

Abstract

To understand the interactions between dissolved organic matter (DOM) and environmental endocrine disruptors (EEDs) in landfill leachate, sorption experiments and the interaction between targets EEDs, including BPA, E₂, E₁, and DOM from leachate were investigated.It was found that adsorption isotherms fit the Freundlich equation well.The regression equation between binding coefficient, K_f, and the logarithm value of K_ow or K_doc of compounds was determined (R₂=0.995 8, P=0.041 < 0.05).Both the unreacted DOM and the DOM that reacted with EEDs were analyzed by FTIR, 1HNMR and ESR.The results suggested that multiple binding mechanisms might occur simultaneously in the adsorption process with the formation of (1) ionic bonds (proton-transfer) between carboxylate groups of DOM and positively charged compounds; (2) hydrogen bonds between structure moieties of EEDs and DOM; and (3) charge-transfer bonds in electron donor-acceptor processes.
- landfill leachate,
- dissolved organic matter (DOM),
- environmental endocrine disruptors (EEDs),
- adsorption isotherm,
- adsorption mechanisms

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References(28)

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