Electrochemical regeneration of granular activated carbon saturated with organic compounds / Lizhang Wang in Chemical engineering journal, Vol. 155 N° 3 (Decembre 2009)  

Public ISBD [article]  inChemical engineering journal > Vol. 155 N° 3 (Decembre 2009) . - pp. 763-768 Titre : Electrochemical regeneration of granular activated carbon saturated with organic compounds Type de document : texte imprimé Auteurs : Lizhang Wang, Auteur ; N. Balasubramanian, Auteur Année de publication : 2010 Article en page(s) : pp. 763-768 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Granular activated carbon Electrochemical regeneration Adsorption Kinetics Index. décimale : 660 Résumé : Electrochemical regeneration of granular activated carbon (GAC) saturated with organic compounds was investigated using SnO2/Ti anodes. Experiments were carried out under a semi-batch electrochemical reactor covering wide range in operating conditions. A kinetic model has been developed to describe the electrochemical regeneration and the performance indicators such as instantaneous current efficiency and regeneration efficiency were estimated. The proposed model has been effectively demonstrated for the regeneration of GAC saturated with organics present in the 4,4′-diamino stilbene-2,2′-disulfonic acid manufacturing wastewater. It has been observed from the present experiments that the applied current density has significant influence on adsorption capacity of regenerated GAC. A good agreement of the model predictions with the experimental observations shows that the proposed kinetic model can be used as a better design method for electrochemical regeneration of spent GAC. DEWEY : 660 ISSN : 1385-8947 En ligne : http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TFJ-4X8CD4K-2&_user=6 [...] [article] Electrochemical regeneration of granular activated carbon saturated with organic compounds [texte imprimé] / Lizhang Wang, Auteur ; N. Balasubramanian, Auteur . - 2010 . - pp. 763-768. Génie Chimique Langues : Anglais (eng) in Chemical engineering journal > Vol. 155 N° 3 (Decembre 2009) . - pp. 763-768 Mots-clés : Granular activated carbon Electrochemical regeneration Adsorption Kinetics Index. décimale : 660 Résumé : Electrochemical regeneration of granular activated carbon (GAC) saturated with organic compounds was investigated using SnO2/Ti anodes. Experiments were carried out under a semi-batch electrochemical reactor covering wide range in operating conditions. A kinetic model has been developed to describe the electrochemical regeneration and the performance indicators such as instantaneous current efficiency and regeneration efficiency were estimated. The proposed model has been effectively demonstrated for the regeneration of GAC saturated with organics present in the 4,4′-diamino stilbene-2,2′-disulfonic acid manufacturing wastewater. It has been observed from the present experiments that the applied current density has significant influence on adsorption capacity of regenerated GAC. A good agreement of the model predictions with the experimental observations shows that the proposed kinetic model can be used as a better design method for electrochemical regeneration of spent GAC. DEWEY : 660 ISSN : 1385-8947 En ligne : http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TFJ-4X8CD4K-2&_user=6 [...]

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