Removal of cadmium, zinc, manganese and chromium cations from aqueous solution by a clay mineral

被引：154

作者：

da Fonseca, Maria G. ^{[1
]}

de Oliveira, Michelle M. ^{[1
]}

Arakaki, Luiza N. H. ^{[1
]}

机构：

[1] Univ Fed Paraiba, CCEN, Dept Quim, BR-58059900 Joao Pessoa, Paraiba, Brazil

来源：

JOURNAL OF HAZARDOUS MATERIALS | 2006年 / 137卷 / 01期

关键词：

adsorption; clay mineral; cadmium; chromium; manganese; zinc;

D O I：

10.1016/j.jhazmat.2006.02.001

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Vermiculite, a 2:1 clay mineral, was applied as adsorbent for removal of cadmium, zinc, manganese, and chromium from aqueous solutions. Parameters such as time of reaction, effect of pH and cation concentration were investigated. All isotherms were L type of the Gilles classification, except zinc (type S). The adsorbent showed good sorption potential for these cations. The experimental data was analyzed by Langmuir isotherm model showing reasonable adjustment. The quantity of adsorbed cations was 0.50, 0.52, 0.60, and 0.48 mmol g(-1) of Cd2+, Mn2+, Zn2+, and Cr3+, respectively. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：288 / 292

页数：5

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