ABSTRACT: 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 two fold increase in the amount of Cr (VI) removed. In following experiments, 30 l of wastewaters were treated with HCl-pretreated yeast biomass confined in a filter press obtaining an average specific metal removal of 13mg per g of dry biomass. At the end of the bioremoval process, the biomass was incinerated and the ashes so obtained resulted composed by over 90% (w/w) of Cr. The results obtained at pilot scale with Cr-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

Biosorption and Recovery of Chromium from Industrial Wastewaters By Using Saccharomyces cerevisiae in a Flow-Through System / Giovanni Colica; Pier Cesare Mecarozzi; Roberto De Philippis. - In: INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH. - ISSN 0888-5885. - STAMPA. - 51:(2012), pp. 4452-4457. [10.1021/ie202584k]

Biosorption and Recovery of Chromium from Industrial Wastewaters By Using Saccharomyces cerevisiae in a Flow-Through System

COLICA, GIOVANNI;DE PHILIPPIS, ROBERTO
2012

Abstract

ABSTRACT: 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 two fold increase in the amount of Cr (VI) removed. In following experiments, 30 l of wastewaters were treated with HCl-pretreated yeast biomass confined in a filter press obtaining an average specific metal removal of 13mg per g of dry biomass. At the end of the bioremoval process, the biomass was incinerated and the ashes so obtained resulted composed by over 90% (w/w) of Cr. The results obtained at pilot scale with Cr-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
2012
51
4452
4457
Giovanni Colica; Pier Cesare Mecarozzi; Roberto De Philippis
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Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/648141
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