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Kinetic and thermodynamic study of the adsorption of As(III) from aqueous solutions by naturally occurring and modified montmorillonites

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Kinetic and thermodynamic study of the adsorption of As(III) from aqueous solutions by naturally occurring and modified montmorillonites

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dc.contributor.author Zehhaf, A. es_ES
dc.contributor.author Benyouncef, Abdelghani es_ES
dc.contributor.author Quijada Tomás, Cesar es_ES
dc.contributor.author Taleb, Safia es_ES
dc.contributor.author Morallón, E. es_ES
dc.date.accessioned 2015-06-11T08:55:59Z
dc.date.available 2015-06-11T08:55:59Z
dc.date.issued 2012-06-15
dc.identifier.issn 2069-5837
dc.identifier.uri http://hdl.handle.net/10251/51537
dc.description.abstract [EN] Adsorption of As(III) from aqueous solutions using naturally occurring and modified Algerian montmorillonites was investigated as a function of contact time, pH and temperature. Kinetic studies reveal that uptake of As(III) ions is rapid within the first 3 hours and it slows down thereafter. Equilibrium studies show that As(III) shows the highest affinity towards Acidic-montmorillonite even at very low concentration of arsenic. A pseudo-second-order chemical reaction model was obtained for As(III). Adsorption isotherms of As(III) fitted the Langmuir and Freundlich isotherm models well. From the thermodynamic parameters, it is concluded that adsorption is exothermic, spontaneous and favorable. The results suggest that M1, M2 and Acidic-M2 could be used as effective filtering materials for removal of arsenic from water. es_ES
dc.description.sponsorship This work has been financed by the AECID (projects AECID-PCI A/019533/08, A/023858/09 and C/031332/10) and Ministerio de Ciencia e Innovación (project MAT2010-15273). The National Agency for the Development of University Research (CRSTRA), the Directorate General of Scientific Research and Technological Development (DGRSDT) of Algeria.
dc.language Inglés es_ES
dc.publisher Comporter SRL es_ES
dc.relation.ispartof Biointerface Research in Applied Chemistry es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Adsorption es_ES
dc.subject Clay es_ES
dc.subject Ion exchange es_ES
dc.subject Arsenic es_ES
dc.subject Montmorillonite es_ES
dc.subject.classification QUIMICA FISICA es_ES
dc.title Kinetic and thermodynamic study of the adsorption of As(III) from aqueous solutions by naturally occurring and modified montmorillonites es_ES
dc.type Artículo es_ES
dc.relation.projectID info:eu-repo/grantAgreement/MAEC//A%2F019533%2F08/ES/ESTUDIO DE LA ELECTROADSORCIÓN DE METALES TÓXICOS EN AGUAS RESIDUALES SOBRE DIFERENTES ADSORBENTES/ es_ES
dc.relation.projectID info:eu-repo/grantAgreement/MICINN//MAT2010-15273/ES/ELECTRODOS NANOESTRUCTURADOS PARA APLICACIONES EN SENSORES ELECTROQUIMICOS Y SUPERCONDENSADORES/ es_ES
dc.relation.projectID info:eu-repo/grantAgreement/MAEC//A%2F023858%2F09/ES/ESTUDIO DE LA ELECTROADSORCIÓN DE METALES ADSORBENTES/
dc.relation.projectID info:eu-repo/grantAgreement/MAEC//C%2F031332%2F10/ES/NUEVAS METODOLOGÍAS PARA EL TRATAMIENTO ELECTROQUÍMICO DE HERBICIDAS EN AGUAS RESIDUALES/
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Ingeniería Textil y Papelera - Departament d'Enginyeria Tèxtil i Paperera es_ES
dc.description.bibliographicCitation Zehhaf, A.; Benyouncef, A.; Quijada Tomás, C.; Taleb, S.; Morallón, E. (2012). Kinetic and thermodynamic study of the adsorption of As(III) from aqueous solutions by naturally occurring and modified montmorillonites. Biointerface Research in Applied Chemistry. 2(3):350-359. http://hdl.handle.net/10251/51537 es_ES
dc.description.accrualMethod S es_ES
dc.description.upvformatpinicio 350 es_ES
dc.description.upvformatpfin 359 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 2 es_ES
dc.description.issue 3 es_ES
dc.relation.senia 233005
dc.contributor.funder Agencia Española de Cooperación Internacional para el Desarrollo
dc.contributor.funder Ministerio de Ciencia e Innovación
dc.contributor.funder Ministerio de Asuntos Exteriores y Cooperación es_ES


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