岩石对Zn^2+、Pb^2+的竞争吸附特征
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X703.5 X505

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国家攀登计划,95预39,32,2,


Characteristics of Competitive Adsorption of Pb~(2+) and Zn~2 in Rock
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    摘要:

    采用紫外一可见分光光度法以及原子吸收分光光度法,对岩石静态吸附Pb^2 、Zn^2 的特征进行了研究,结果表明,砂岩从含Zn^2 的溶液中吸附Zn^2 、从Pb^2 和Zn^2 混合溶液中吸附Pb^2 和Zn^2 以及角砾岩从Pb^2 和Zn^2 混合溶液中吸附Pb^2 的过程均是类分形的;角砾岩和砂岩对铅的吸附速率大于锌,在铅存在的情况下锌的吸附能力减弱;角砾岩和砂岩对铅离子的吸附量相差不大,但角砾岩对锌离子的吸附能力强于砂岩。

    Abstract:

    Under static state condition, the characteristics of adsorption of Pb 2+ and Zn 2 in Rock have been studied using the ultraviolet-visible spectrophotometers method and the atom adsorption spectrophotometers method. The results show that the process,in which the sandstone adsorbs Zn 2+ from solution-containing Zn 2+ , the sandstone adsorb Zn 2+ and Pb 2+ from Pb 2+ +Zn 2+ solution and breccia adsorbs Zn 2+ from Pb 2+ +Zn 2+ solution , is fractal-like. The rate of adsorption of Pb 2+ is more than that of Zn 2+ in breccia. The adsorption ability of Zn 2+ in rock is decreased because there is Pb 2+ in solution. The adsorption capacity of Pb 2+ is close to that of sandstone and breccia,and the adsorption ability of Zn 2+ in breccia is better than that in sandstone.

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徐龙君 牟传龙 等.岩石对Zn^2+、Pb^2+的竞争吸附特征[J].重庆大学学报,2001,24(3):38-40.

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  • 最后修改日期:2000-08-30
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