Removal of uranium (VI) from aqueous solution by adsorption of hematite

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成果类型：

期刊论文

作者：

Xie Shuibo*;Zhang Chun;Zhou Xinghuo;Yang Jing;Zhang Xiaojian;...

通讯作者：

Xie Shuibo

作者机构：

[Xie Shuibo; Yang Jing; Zhang Chun; Wang Jingsong; Zhou Xinghuo] Univ S China, Sch Urban Construct, Hengyang 421001, Hunan, Peoples R China.

[Xie Shuibo; Zhang Xiaojian] Tsinghua Univ, Dept Environm Sci & Engn, Beijing 100084, Peoples R China.

[Xie Shuibo] Univ S China, Sch Urban Construct, 28 W Changsheng Rd, Hengyang 421001, Hunan, Peoples R China.

通讯机构：

[Xie Shuibo] U

Univ S China, Sch Urban Construct, 28 W Changsheng Rd, Hengyang 421001, Hunan, Peoples R China.

语种：

英文

关键词：

Adsorption capacities;Adsorption processes;Aqueous solutions;Batch experiments;Contact times;Equilibrium times;First orders;Initial adsorptions;Initial concentrations;Intraparticle diffusions;Isothermal datums;Kinetic behaviors;Kinetic datums;Kinetic models;Langmuir and freundlich equations;Magnesium ions;Thermodynamic parameters;Unit weights;Adsorption isotherms;Calcium;Calcium alloys;Hematite;Iron ores;Isotherms;Kinetic theory;Magnesium;Magnesium printing plates;Metal ions;Oxide minerals;Solutions;Sorption;Temperature;Transuranium elements;Uranium;Uranium compounds;Vegetation;Adsorption;adsorption;aqueous solution;calcium;experimental study;hematite;isotherm;magnesium;pH;pollutant removal;reaction kinetics;thermodynamics;uranium isotope;Adsorption;Ferric Compounds;Microscopy, Electron, Scanning;Uranium;Water

期刊：

Journal of Environmental Radioactivity

ISSN：

0265-931X

年：

2009

卷：

100

期：

页码：

162-166

DOI：

10.1016/j.jenvrad.2008.09.008

基金类别：

Financial support from the National Natural Science Foundation of China (No. 10775065, No. 20707008) is highly appreciated. The helpful comments from anonymous reviewers are also gratefully acknowledged.

机构署名：

本校为第一且通讯机构

院系归属：

土木工程学院

摘要：

Hematite, a type of inorganic-sorptive medium, was used for the removal of U (VI) from aqueous solutions. Variables of the batch experiments including solution pH, contact time, initial concentration, temperature, calcium and magnesium ions were studied. The results indicated that the adsorption capacities are strongly affected by the solution pH, contact time and initial concentration. A higher pH favors higher U (VI) removal. The adsorption was also affected by temperature and calcium and magnesium ions, but the effect is very weak. The maxim...

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Removal of uranium (VI) from aqueous solution by adsorption of hematite

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