Adsorption of As(V) from Water Using Nanomagnetite
Publication: Journal of Environmental Engineering
Volume 136, Issue 4
Abstract
This paper describes a study of the removal of arsenate [As(V)] from aqueous solutions by adsorption on commercial nanomagnetite (NM). The influences of pH, initial arsenate [As(V)] concentration, and adsorbent concentration were investigated in multiple kinetic runs. The adsorption kinetics and isotherms were investigated in batch experiments. The experimental data were determined to be best described by the pseudosecond-order kinetic model. Langmuir and Freundlich isotherms were used to fit the adsorption data from equilibrium experiments. The findings have revealed that NM has high removal efficiency for arsenate, with its capacity to reduce an initial level of 300 to As(V), i.e., below the limit ( As) set for potable water by the World Health Organization.
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Acknowledgments
The writers thank Karadeniz Technical University Scientific Research Fund (Project Nos. UNSPECIFIED2004.112.008.2 and UNSPECIFIED2007.112.008.3) for the financial support.
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Information & Authors
Information
Published In
Journal of Environmental Engineering
Volume 136 • Issue 4 • April 2010
Pages: 399 - 404
Copyright
© 2010 ASCE.
History
Received: Jan 20, 2009
Accepted: Sep 25, 2009
Published online: Sep 29, 2009
Published in print: Apr 2010
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