algerian journal of environmental science and technology
Volume 3, Numéro 3, Pages 532-538
2017-12-30
Préparation Des Biomatériaux D’hydrogels à Base D’argile Et D’alginate (algues Brunes): Application Environnementale
Auteurs : Djebri N .
Résumé
A new biomaterial (A-OB) consisting of alginate and organobentonite was prepared according to the ionic gelation method. Physical characteristics of A-OB were studied using pHPZC and FTIR. Bisphenol A, one of endocrine disrupting compounds (EDCs), was used as model water organics pollutants. Factors affecting BPA sorption, such as pH, and concentration of BPA solution were extensively investigated. It was found from the study that the sorption of BPA by the biomaterial beads is pH-dependent and concentration of solution. The adsorption mechanism of BPA onto A-OB was evaluated in terms of kinetics, and equilibrium. The data obtained from the batch sorption experiments were well fitted by pseudo-second-order. The Langmuir and Freundlich isotherm models were used to describe equilibrium data.
Mots clés
Biomaterial; alginate; bisphenol A; kinetic; biosorption.
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