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Biosorption of Cr(III) and Fe(III) in single and binary systems onto pretreated orange peel.

Identifieur interne : 000635 ( PubMed/Checkpoint ); précédent : 000634; suivant : 000636

Biosorption of Cr(III) and Fe(III) in single and binary systems onto pretreated orange peel.

Auteurs : V. Lugo-Lugo [Mexique] ; C. Barrera-Díaz ; F. Ure A-Nú Ez ; B. Bilyeu ; I. Linares-Hernández

Source :

Journal of environmental management [ 1095-8630 ] ; 2012.

RBID : pubmed:22892173

English descriptors

KwdEn :
- Adsorption, Chromium (chemistry), Citrus sinensis (metabolism), Ferric Compounds (chemistry), Hydrogen-Ion Concentration, Kinetics, Microscopy, Electron, Scanning, Spectroscopy, Fourier Transform Infrared, Thermodynamics.
MESH :
- chemical , chemistry : Chromium, Ferric Compounds.
- metabolism : Citrus sinensis.
- Adsorption, Hydrogen-Ion Concentration, Kinetics, Microscopy, Electron, Scanning, Spectroscopy, Fourier Transform Infrared, Thermodynamics.

Abstract

Trivalent chromium and iron are the products of the traditional reduction of hexavalent chromium by ferrous salts in industrial wastewater. Although there have been a few studies of Cr(III) adsorption, none have considered the effect of Fe(III) on Cr(III) adsorption in a binary system representing expected products of hexavalent chromium in industrial wastewater. The biosorption of Cr(III) and Fe(III) ions onto pretreated ground orange peel in single and binary systems was studied in batch experiments using a variety of techniques. The kinetic results showed a rapid rate of biosorption of Cr(III) and Fe(III) in single and binary systems and mutual interference effects in the competitive binary Cr(III)-Fe(III) system. Second order kinetic models showed the best fit for all systems. The behavior of competitive Cr(III)-Fe(III) biosorption were successfully described by the multicomponent Langmuir model, obtaining maximum capacities for Cr(III) and Fe(III) of 9.43 and 18.19 mg/g respectively. SEM/EDS results confirmed that the metals adsorb on the surface and FTIR identified the hydroxyl groups on the carboxylic acids as the active binding sites.

DOI: 10.1016/j.jenvman.2012.07.009
PubMed: 22892173

Affiliations:

Mexique

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Le document en format XML

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<author><name sortKey="Lugo Lugo, V" sort="Lugo Lugo, V" uniqKey="Lugo Lugo V" first="V" last="Lugo-Lugo">V. Lugo-Lugo</name>
<affiliation wicri:level="1"><nlm:affiliation>Universidad Tecnológica del Valle de Toluca, Carretera del Departamento del D.F. Km 7.5, Santa María Atarasquillo, C.P. 52050, Lerma, Mexico. violelugol@yahoo.es</nlm:affiliation>
<country xml:lang="fr">Mexique</country>
<wicri:regionArea>Universidad Tecnológica del Valle de Toluca, Carretera del Departamento del D.F. Km 7.5, Santa María Atarasquillo, C.P. 52050, Lerma</wicri:regionArea>
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<author><name sortKey="Barrera Diaz, C" sort="Barrera Diaz, C" uniqKey="Barrera Diaz C" first="C" last="Barrera-Díaz">C. Barrera-Díaz</name>
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<author><name sortKey="Ure A Nu Ez, F" sort="Ure A Nu Ez, F" uniqKey="Ure A Nu Ez F" first="F" last="Ure A-Nú Ez">F. Ure A-Nú Ez</name>
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<author><name sortKey="Bilyeu, B" sort="Bilyeu, B" uniqKey="Bilyeu B" first="B" last="Bilyeu">B. Bilyeu</name>
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<author><name sortKey="Linares Hernandez, I" sort="Linares Hernandez, I" uniqKey="Linares Hernandez I" first="I" last="Linares-Hernández">I. Linares-Hernández</name>
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<term>Ferric Compounds (chemistry)</term>
<term>Hydrogen-Ion Concentration</term>
<term>Kinetics</term>
<term>Microscopy, Electron, Scanning</term>
<term>Spectroscopy, Fourier Transform Infrared</term>
<term>Thermodynamics</term>
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<keywords scheme="MESH" type="chemical" qualifier="chemistry" xml:lang="en"><term>Chromium</term>
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<keywords scheme="MESH" xml:lang="en"><term>Adsorption</term>
<term>Hydrogen-Ion Concentration</term>
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<front><div type="abstract" xml:lang="en">Trivalent chromium and iron are the products of the traditional reduction of hexavalent chromium by ferrous salts in industrial wastewater. Although there have been a few studies of Cr(III) adsorption, none have considered the effect of Fe(III) on Cr(III) adsorption in a binary system representing expected products of hexavalent chromium in industrial wastewater. The biosorption of Cr(III) and Fe(III) ions onto pretreated ground orange peel in single and binary systems was studied in batch experiments using a variety of techniques. The kinetic results showed a rapid rate of biosorption of Cr(III) and Fe(III) in single and binary systems and mutual interference effects in the competitive binary Cr(III)-Fe(III) system. Second order kinetic models showed the best fit for all systems. The behavior of competitive Cr(III)-Fe(III) biosorption were successfully described by the multicomponent Langmuir model, obtaining maximum capacities for Cr(III) and Fe(III) of 9.43 and 18.19 mg/g respectively. SEM/EDS results confirmed that the metals adsorb on the surface and FTIR identified the hydroxyl groups on the carboxylic acids as the active binding sites.</div>
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<Abstract><AbstractText>Trivalent chromium and iron are the products of the traditional reduction of hexavalent chromium by ferrous salts in industrial wastewater. Although there have been a few studies of Cr(III) adsorption, none have considered the effect of Fe(III) on Cr(III) adsorption in a binary system representing expected products of hexavalent chromium in industrial wastewater. The biosorption of Cr(III) and Fe(III) ions onto pretreated ground orange peel in single and binary systems was studied in batch experiments using a variety of techniques. The kinetic results showed a rapid rate of biosorption of Cr(III) and Fe(III) in single and binary systems and mutual interference effects in the competitive binary Cr(III)-Fe(III) system. Second order kinetic models showed the best fit for all systems. The behavior of competitive Cr(III)-Fe(III) biosorption were successfully described by the multicomponent Langmuir model, obtaining maximum capacities for Cr(III) and Fe(III) of 9.43 and 18.19 mg/g respectively. SEM/EDS results confirmed that the metals adsorb on the surface and FTIR identified the hydroxyl groups on the carboxylic acids as the active binding sites.</AbstractText>
<CopyrightInformation>Copyright © 2012 Elsevier Ltd. All rights reserved.</CopyrightInformation>
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Biosorption of Cr(III) and Fe(III) in single and binary systems onto pretreated orange peel.

Biosorption of Cr(III) and Fe(III) in single and binary systems onto pretreated orange peel.

Source :

English descriptors

Abstract

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Links to Exploration step

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