Adsorption of arsenic (V) by iron (III)-modified natural zeolitic tuff

被引：0
作者：
Tanja Stanić
Aleksandra Daković
Aleksandar Živanović
Magdalena Tomašević-Čanović
Vera Dondur
Sonja Milićević
机构：
[1] Institute for Technology of Nuclear and Other Mineral Raw Materials,
[2] VMA Institute for Hygiene,undefined
[3] Faculty of Physical Chemistry,undefined
来源：
Environmental Chemistry Letters | 2009年 / 7卷
关键词：
Zeolite; Clinoptilolite; Iron (III); Arsenic (V); Adsorption;
D O I：
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中图分类号：
学科分类号：
摘要：
Adsorption of arsenic (V) by natural zeolitic tuff, modified with iron (III), was investigated. Also, the iron (III) adsorption characteristics by natural zeolitic tuff was evaluated. It was determined that iron (III) adsorption by starting zeolitic tuff was best represented by the Freundlich type of isotherm, having correlation coefficient (r2) of 0.990. Arsenic (V) adsorption by iron (III)-modified zeolitic tuff followed a nonlinear type of isotherm. The best fit of the experimental data was obtained using the Langmuir–Freundlich model (r2 = 0.99), with the estimated maximum of arsenic (V) adsorption to iron (III)-modified zeolitic tuff of 1.55 mg/g.
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页码：161 / 166
页数：5
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