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Biosorption and recovery of chromium from industrial wastewaters by using saccharomyces cerevisiae in a flow - through system / Giovanni Colica in Industrial & engineering chemistry research, Vol. 51 N° 11 (Mars 2012) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 51 N° 11 (Mars 2012) . - pp. 4452-4457 Titre : Biosorption and recovery of chromium from industrial wastewaters by using saccharomyces cerevisiae in a flow - through system Type de document : texte imprimé Auteurs : Giovanni Colica, Auteur ; Pier Cesare Mecarozzi, Auteur ; Roberto De Philippis, Auteur Année de publication : 2012 Article en page(s) : pp. 4452-4457 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Industrial  waste  water  Biosorption Résumé : This study investigated the possibility to adsorb and recycle Cr(VI) from the wastewater of a Cr-electroplating process using Saccharomyces cerevisiae in a flow-through system at a pilot scale. In a first set of experiments, it was demonstrated that an HCl pretreatment of the biomass induced a 2-fold increase in the amount of Cr(VI) removed. In the following experiments, 30 L of wastewater was treated with HCl-pretreated yeast biomass confined in a filter press, obtaining an average specific metal removal of 13 mg per g of dry biomass. At the end of the bioremoval process, the biomass was incinerated and the ashes thus obtained were composed of >90% (w/w) chromium. The results obtained at pilot scale with chromium-containing wastewaters demonstrated the good metal sorption capability of the acid-pretreated S. cerevisiae biomass and the possibility to recover, at a high purity, the metal from the biomass at the end of the treatment process. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=25655654 [article] Biosorption and recovery of chromium from industrial wastewaters by using saccharomyces cerevisiae in a flow - through system [texte imprimé] / Giovanni Colica, Auteur ; Pier Cesare Mecarozzi, Auteur ; Roberto De Philippis, Auteur . - 2012 . - pp. 4452-4457. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 11 (Mars 2012) . - pp. 4452-4457 Mots-clés : Industrial  waste  water  Biosorption Résumé : This study investigated the possibility to adsorb and recycle Cr(VI) from the wastewater of a Cr-electroplating process using Saccharomyces cerevisiae in a flow-through system at a pilot scale. In a first set of experiments, it was demonstrated that an HCl pretreatment of the biomass induced a 2-fold increase in the amount of Cr(VI) removed. In the following experiments, 30 L of wastewater was treated with HCl-pretreated yeast biomass confined in a filter press, obtaining an average specific metal removal of 13 mg per g of dry biomass. At the end of the bioremoval process, the biomass was incinerated and the ashes thus obtained were composed of >90% (w/w) chromium. The results obtained at pilot scale with chromium-containing wastewaters demonstrated the good metal sorption capability of the acid-pretreated S. cerevisiae biomass and the possibility to recover, at a high purity, the metal from the biomass at the end of the treatment process. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=25655654