干旱区绿洲灌漠土和灰钙土Cu,Ni的吸附解吸特征

Journal of Lanzhou University(Natural Sciences)(2009)

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Abstract
利用热力学吸附平衡法研究了干旱区绿洲灌漠土和灰钙土Cu,Ni的吸附解吸行为。结果表明:Henry方程,Freundlich方程可以较好地模拟Cu,Ni在灌漠土和灰钙土中的等温吸附特征;灌漠土和灰钙土对Cu,Ni吸附选择顺序都为Cu>Ni,灰钙土Cu,Ni之间的竞争作用大于灌漠土中的;灌漠土和灰钙土Cu的解吸率都远远小于Ni的,两种土壤Cu的吸附滞后作用都比Ni的强。
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Key words
desorption,sorption,copper,gray calcareous soil,irrigated desert soil,nickel
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