Removal of Cu2+ from Aqueous Solutions by Adsorption on Chemically Modified Cellulosic Supports

Low-cost materials containing carboxyl groups have been synthesized by grafting succinic anhydride onto sawdust and cotton fibers. These materials were used after activation with NaHCO 3 for the removal of Cu 2+ from water. Removal of copper was carried out at different concentrations in a discontin...

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Bibliographic Details
Published in:Particulate science and technology 2011-07, Vol.29 (4), p.320-332
Main Authors: Elbariji, S., Pétrissans, A., Elamine, M., Ouzaouit, K., Kabli, H., Albourine, A., Gerardin, P.
Format: Article
Language:English
Subjects:
Activation
Adsorbents
Adsorption
Anhydrides
cellulose
Chemical and Process Engineering
chemical modification
Copper
Engineering Sciences
Reactors
Sawdust
Separation
succinic anhydride
wastewater
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Summary:Low-cost materials containing carboxyl groups have been synthesized by grafting succinic anhydride onto sawdust and cotton fibers. These materials were used after activation with NaHCO 3 for the removal of Cu 2+ from water. Removal of copper was carried out at different concentrations in a discontinuous reactor and in a continuous adsorption column. The adsorption of Cu 2+ obeys to the Langmuir isotherm law and the values determined for the separation factor show that the system adsorbent/adsorbed substance is favorable to the adsorption process. Copper desorption and adsorbent regeneration can be achieved with diluted acid.
ISSN:0272-6351
1548-0046
DOI:10.1080/02726351.2010.499561