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Titre: | Modeling of the adsorption of metribuzin pesticide onto electro-activated granular carbon |
Auteur(s): | Lounici, Hakim |
Mots-clés: | Granular activated carbon; Electro-activation; Pesticide; Metribuzin; Adsorption; Water treatment |
Date de publication: | aoû-2014 |
Editeur: | universite de bouira |
Référence bibliographique: | Taylor & Francis |
Résumé: | The main purpose of the present study is to investigate the mechanism which governs the adsorption of the pesticide onto electro-granular activated carbon (GAC). The operating conditions assessed are: electrical potential, electro-activation time, the initial metribuzin—electro- activated GAC concentration ratio (R = Cp/CGAC). In the first step, it has been confirmed using an experimental design that the C/C0 ratio is much more affected by the electrochemical potential application than by R ratio. The mathematical model indicates that the electrochemical potential has a significant effect during the metribuzin adsorption during the first half an hour on GAC and thereby demonstrates the electroactivation beneficial effect. In the second step, a mass transfer model has been applied in order to evaluate the effect of the electro-activation of GAC on the kinetic constant. Indeed, the results showed that the electro- activation accelerates the process with kinetic constants 2–3 times higher than those obtained without the electro-activation of GAC. |
URI/URL: | http://dspace.univ-bouira.dz:8080/jspui/handle/123456789/6711 |
Collection(s) : | Articles |
Fichier(s) constituant ce document :
Fichier | Description | Taille | Format | |
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Modeling of the adsorption of metribuzin pesticide onto electro-activated granular carbon.pdf | 291,04 kB | Adobe PDF | Voir/Ouvrir |
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