Dynamic removal of uranium by chitosan: influence of operating parameters

A filtered industrial effluent from an abandoned mine was passed through a Schott column containing chitosan, under various experimental conditions and samples of the filtrate were analysed. Flow velocity did not affect sorption when the particle size was small but with larger particles increasing t...

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Bibliographic Details
Published in:Water science and technology 1996, Vol.34 (10), p.169-177
Main Authors: Jansson-Charrier, M, Guibal, E, Roussy, J, Surjous, R, Le Cloirec, P
Format: Article
Language:English
Subjects:
Abandoned mines
Biosorption
Chitosan
Diffusion effects
Diffusion rate
Dilution
Dye dispersion
Effluents
Flow velocity
Freshwater
Hydrodynamics
Ion concentration
Leachates
Metal concentrations
Metal ions
Metals
Parameters
Removal
Uranium
Wastewater
Wastewater treatment
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Description
Summary:A filtered industrial effluent from an abandoned mine was passed through a Schott column containing chitosan, under various experimental conditions and samples of the filtrate were analysed. Flow velocity did not affect sorption when the particle size was small but with larger particles increasing the flow rate reduced diffusion through the sorbent. Increasing the initial metal concentration increased the uptake capacity to a maximal depending on particle size. As the column height was increased the adsorption zone represented a lower proportion of the total volume. Smaller particle sizes were more favourable for metal uptake but caused a drop in pressure so that for industrial scale processes an intermediate size would be preferable.
ISSN:0273-1223
1996-9732
DOI:10.1016/S0273-1223(96)00711-1