Adsorption of Oleate Anions on to Cationized Lignocelluloses | Zendy

Haïfa Zghida | Zendy; Mohamed Hassen V. Baouab | Zendy; Robert Gauthier | Zendy

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Adsorption of Oleate Anions on to Cationized Lignocelluloses

Author(s) -

Haïfa Zghida,

Mohamed Hassen V. Baouab,

Robert Gauthier

Publication year - 2002

Publication title -

adsorption science and technology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.682

H-Index - 36

eISSN - 2048-4038

pISSN - 0263-6174

DOI - 10.1260/026361702321039483

Subject(s) - chemistry , adsorption , ammonium , sawdust , aqueous solution , desorption , carboxylate , pollutant , oleic acid , nuclear chemistry , chemical engineering , organic chemistry , inorganic chemistry , biochemistry , engineering

Oleic acid and its salts are present among the toxic pollutants in olive oil mill wastewaters. Four lignocellulosic materials modified by grafting quaternary ammonium groups have been tested for the adsorption of the oleate anion from aqueous solutions, viz. cotton fibres, viscose fabric, wood sawdust and maize cob powder. As a result of their strong ionic interactions, the carboxylate moities were entrapped at a rate equivalent to the ammonium content of the support. Furthermore, when this charged support was left in contact with the polluted solution without agitation, an additional quantity of pollutant was adsorbed due to associations by the hydrophobic tails of the oleate moities. Partial desorption was achieved in 1 M HCl solution.

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