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Technical Briefs

Removal of Uranium From Aqueous Solution by Chitosan and Ferrous Ions

[+] Author and Article Information
Jing-song Wang

School of Urban Construction, Hunan Key Laboratory of Pollution Control and Resource Reuse, Key Discipline Laboratory for National Defence for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang, Hunan 421001, P.R. Chinaxhwjs@163.com

Zheng-lei Bao

School of Urban Construction, Hunan Key Laboratory of Pollution Control and Resource Reuse, Key Discipline Laboratory for National Defence for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang, Hunan 421001, P.R. Chinabaozhenglei000@163.com

Si-guang Chen

School of Urban Construction, Hunan Key Laboratory of Pollution Control and Resource Reuse, Key Discipline Laboratory for National Defence for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang, Hunan 421001, P.R. Chinacsg0205@163.com

Jin-hui Yang

School of Urban Construction, Hunan Key Laboratory of Pollution Control and Resource Reuse, Key Discipline Laboratory for National Defence for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang, Hunan 421001, P.R. Chinayangjinhui126@126.com

J. Eng. Gas Turbines Power 133(8), 084502 (Apr 08, 2011) (3 pages) doi:10.1115/1.4002817 History: Received July 03, 2010; Revised July 04, 2010; Published April 08, 2011; Online April 08, 2011

This study focuses on developing a new method to remove uranium from aqueous solution. Chitosan and ferrous ions were used together to remove uranium ions from aqueous solution. Through two-step pH adjustment, the uptake behavior of chitosan and ferrous ions toward uranium in aqueous solution using batch systems was studied in different experimental conditions. The experimental results indicated that the removal of uranium by the synergetic effect of chitosan and ferrous ions was more effective than the way of adsorbing uranium ions by chitosan alone. Under the given experimental conditions, the concentration of the residual uranium in the effluent after the chitosan and ferrous ion treatment could meet the discharge standard (<0.05mgl1) when the initial concentration of uranium ions was 10mgl1 or 100mgl1. The synergetic effect of chitosan and ferrous ions, including adsorption, coacervation, and coprecipitation, was responsible for the high removal rate of uranium.

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Copyright © 2011 by American Society of Mechanical Engineers
Topics: Ions , Uranium
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Figures

Grahic Jump Location
Figure 2

Effect of the dosage of FeSO4⋅7H2O on uranium removal. Conditions: C0100 mg l−1, initial pH 4.0, final pH 7.0, and dosage of chitosan 0.7 g.

Grahic Jump Location
Figure 1

Effect of chitosan dosage on uranium removal. Conditions: C0100 mg l−1, initial pH 4.0, final pH 7.0, and dosage of FeSO4⋅7H2O 0.15 g.

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