Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
582049 | Journal of Hazardous Materials | 2009 | 7 Pages |
Abstract
In this study, a series of batch experiments is conducted to investigate the ability of magnetic alginate beads containing Cyanex 272® to remove Co(II) ions from aqueous solutions. Equilibrium sorption experiments show a Co(II) uptake capacity of 0.4 mmol gâ1. The data are successfully modelled with a Langmuir equation. A series of kinetics experiments is then carried out and a pseudo-second order equation is used to fit the experimental data. The effect of pH on the sorption of Co(II) ions is also investigated. Desorption experiments by elution of the loaded beads with nitric acid at pH 1 show that the magnetic alginate beads could be reused without significant losses of their initial properties even after 3 adsorption-desorption cycles.
Related Topics
Physical Sciences and Engineering
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Authors
Audrey-Flore Ngomsik, Agnès Bee, Jean-Michel Siaugue, Delphine Talbot, Valérie Cabuil, Gérard Cote,