| Adsorption and desorption of lanthanum at sulfide mineral surface |
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| 作者姓名： | Lin Yuhuan George W. Bailey Alan T. Lynch |
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| 作者单位： | Environmental Research Laboratory，Office of Research and Development U. S. Environmental Protection Agency，Athens，Georgia 30613.，Technology Applications，Inc. Athens，Georgic 30613. |
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| 摘 要： | Batch adsorption experiment with four sulfide minerals - Chalcocite galena, pyrite and sphalerite - were used to study for the adsorption and desorp-tion behavior of La (III) in the presence of EDTA, a model humic matter. Linear adsorption was found in all cases.The presence of soluble organic complexing ligand should reduce the mobility of La (III) in porous media and its transport to groundwater in the percolating soil solution. Binding mechanism is proposed to account for this preferential binding behavior.
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| 收稿时间： | 1988/11/10 0:00:00 |
Adsorption and desorption of lanthanum at sulfide mineral surface |
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| Lin Yuhuan,George W. Bailey,Alan T. Lynch.Adsorption and desorption of lanthanum at sulfide mineral surface[J].Journal of Environmental Sciences,1990,2(3):51-66. |
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| Authors: | Lin Yuhuan George W Bailey and Alan T Lynch |
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| Institution: | Research Center for Eco-Environent Sciences;Cinese Academy of Scineces;Beijing;PRC,Environmental Research Laboratory;Office of Research and Development U. S. Environmental Protection Agency;Athens;Georgia 30613. and Technology Applications;Inc. Athens;Georgic 30613. |
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| Abstract: | Batch adsorption experiment with four sulfide minerals - Chalcocite galena, pyrite and sphalerite - were used to study for the adsorption and desorp-tion behavior of La (III) in the presence of EDTA, a model humic matter. Linear adsorption was found in all cases.The presence of soluble organic complexing ligand should reduce the mobility of La (III) in porous media and its transport to groundwater in the percolating soil solution. Binding mechanism is proposed to account for this preferential binding behavior. |
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| Keywords: | lanthanum adsorption sulfide mineral surface |
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