期刊论文

中文

环境化学

0254-6108

2015

34

11

2109-2117

10.7524/j.issn.0254-6108.2015.11.2015032309

(2012GS430203):国家"十二五"科技惠民计划项目 (2012BAC09B03):国家"十二五"科技支撑计划项目 :湖南省环境科学与工程重点学科建设项目资助

本校为第一机构

测试了蛭石-水溶液体系中Pb~(2+)、Cd~(2+)、Zn~(2+)离子的等温动态吸附曲线.实验结果表明蛭石具有较强的去除水溶液中Pb~(2+)、Cd~(2+)、Zn~(2+)离子的能力.基于等温条件下物理化学反应组分的标准化学势为常数的原理,建立了反应体系的动态化学势变方程,为分析离子吸附机理和发展离子吸附技术提供了理论依据与实用方法.测试离子化学势的动态变化证明离子吸附反应遵循电化学势作用定律.

Experiments were conducted to determine the kinetic isotherm adsorption curves of Pb^2＋,Cd^2＋and Zn^2＋ions in vermiculite-aqueous solutions. The results obtained from the tests indicate that vermiculite removed significant amounts of the metal ions from the aqueous solution. Based on the thermodynamic principle that the standard chemical potentials of the components of physiochemical reactions are constant under isothermal conditions,equations were derived for calculating the kinetic change in the chemical potential of the reaction. The esta...