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Adsorption of Cadmium (Cd2+) Ions from Aqueous Solutions on the Modified Montmorillonite


Affiliations
1 Department of Life Science, Shaoxing University Yuanpei College, Shaoxing, 312000, China
2 College of Life Science, Shaoxing University, Shaoxing, 312000, China
 

Heavy metal pollution has become one of the most serious environmental problems today due to its difficulty in removal, especially in aquatic environments. The technologies for heavy metal ion removal from aqueous solutions are, chemical treatment, physico-chemical treatment and biological treatment. However, the existing methods are relatively expensive. Therefore, there is an urgency that some environmentally sound and practically feasible technologies or sorbents are needed to be developed. In this study, a modified montmorillonite was used for the removal of Cd2+ ions from aqueous solutions. The influence of various operating parameters on the adsorption process was investigated. The kinetics and equilibrium adsorption of Cd2+ ions from aqueous solutions using the modified montmorillonite were also discussed in detail. The objective of this study is to provide fundamental information on the adsorption of heavy metals from aqueous solution on the modified montmorillonite and to investigate the possible mechanisms.

Keywords

Adsorption, Cd2+ Ions, Modified Montmorillonite, Kinetic Equilibrium.
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  • Adsorption of Cadmium (Cd2+) Ions from Aqueous Solutions on the Modified Montmorillonite

Abstract Views: 220  |  PDF Views: 1

Authors

Shuiying Xiong
Department of Life Science, Shaoxing University Yuanpei College, Shaoxing, 312000, China
Muqing Qiu
College of Life Science, Shaoxing University, Shaoxing, 312000, China
Wenze Wu
College of Life Science, Shaoxing University, Shaoxing, 312000, China
Meng Tang
College of Life Science, Shaoxing University, Shaoxing, 312000, China
Jiangping Song
Department of Life Science, Shaoxing University Yuanpei College, Shaoxing, 312000, China

Abstract


Heavy metal pollution has become one of the most serious environmental problems today due to its difficulty in removal, especially in aquatic environments. The technologies for heavy metal ion removal from aqueous solutions are, chemical treatment, physico-chemical treatment and biological treatment. However, the existing methods are relatively expensive. Therefore, there is an urgency that some environmentally sound and practically feasible technologies or sorbents are needed to be developed. In this study, a modified montmorillonite was used for the removal of Cd2+ ions from aqueous solutions. The influence of various operating parameters on the adsorption process was investigated. The kinetics and equilibrium adsorption of Cd2+ ions from aqueous solutions using the modified montmorillonite were also discussed in detail. The objective of this study is to provide fundamental information on the adsorption of heavy metals from aqueous solution on the modified montmorillonite and to investigate the possible mechanisms.

Keywords


Adsorption, Cd2+ Ions, Modified Montmorillonite, Kinetic Equilibrium.

References