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Number of results
Journal
2011 | 9 | 3 | 437-445
Article title

Competitive adsorption of toxic metals on activated carbon

Content
Title variants
Languages of publication
EN
Abstracts
EN
Competitive adsorption of zinc and copper on activated carbon is studied in this article. Main aim was to suggest an advanced model for competitive adsorption of both metals considering pH influence and precipitation. A surface-complexation approach was employed for the modeling. Two models were considered: simple adsorption and ion exchange. System “The Geochemists Workbench” was used for calculation of both static and dynamic adsorption tasks. From the batch experiments, concentration of four types of sorbing sites on the carbon surface and its protonation and sorption constants were deduced. Then, batch competitive adsorption experiments were compared with the models’ results. Finally, a column experiment (fixed bed adsorption) was carried out. It was observed that the model of ion exchange can satisfyingly predict both chromatographic effect and increase of zinc concentration in effluent over its initial value, although a quantitative agreement between the model and the experiment was not totally precise.
Publisher

Journal
Year
Volume
9
Issue
3
Pages
437-445
Physical description
Dates
published
1 - 6 - 2011
online
22 - 3 - 2011
Contributors
author
  • Institute of Chemical Technology
  • Academy of Science of the Czech Republic
References
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  • [8] E. Eriksson, Principles and applications of hydrochemistry (Chapman and Hall, London, 1985)
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  • [10] D.A. Dzombak, F.M.M. Morel, Surface Complexation Modelling (J.Wiley&Sons, Hoboken, 1990)
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Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.-psjd-doi-10_2478_s11532-011-0021-y
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