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Algerian natural montmorillonites for arsenic(III) removal in aqueous solution

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Algerian natural montmorillonites for arsenic(III) removal in aqueous solution

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dc.contributor.author Zehhaf, A. es_ES
dc.contributor.author Benyoucef, A. es_ES
dc.contributor.author Quijada Tomás, Cesar es_ES
dc.contributor.author Taleb, S. es_ES
dc.contributor.author Morallón, E. es_ES
dc.date.accessioned 2015-07-24T10:10:10Z
dc.date.available 2015-07-24T10:10:10Z
dc.date.issued 2015-02
dc.identifier.issn 1735-1472
dc.identifier.uri http://hdl.handle.net/10251/53705
dc.description.abstract The adsorption of As(III) from aqueous solutions using naturally occurring and modified Algerian montmorillonites has been 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 h, and it slows down thereafter. Equilibrium studies show that As(III) shows the highest affinity toward acidic montmorillonite even at very low concentration of arsenic. The kinetics of As(III) adsorption on all montmorillonites used is well described by a pseudo-second-order chemical reaction model, which indicates that the adsorption process of these species is likely to be chemisorption. Adsorption isotherms of As(III) fitted the Langmuir and Freundlich isotherm models well. The adsorption of As(III) is pH-dependent obtaining an optimal adsorption at pH 5. From the thermodynamic parameters, it is concluded that the process is exothermic, spontaneous, and favorable. The results suggest that M-1, M-2, and acidic-M-2 could be used as low-cost and effective filtering materials for removal of arsenic from water. es_ES
dc.description.sponsorship This work has been financed by the Ministerio de Economia y Competitividad and FEDER(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. en_EN
dc.language Inglés es_ES
dc.publisher Springer Verlag (Germany) es_ES
dc.relation Ministerio de Economia y Competitividad es_ES
dc.relation FEDER [MAT2010-15273] es_ES
dc.relation The National Agency for the Development of University Research (CRSTRA) es_ES
dc.relation The Directorate General of Scientific Research and Technological Development (DGRSDT) of Algeria es_ES
dc.relation.ispartof International Journal of Environmental Science and Technology 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 Algerian natural montmorillonites for arsenic(III) removal in aqueous solution es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1007/s13762-013-0437-3
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.; Benyoucef, A.; Quijada Tomás, C.; Taleb, S.; Morallón, E. (2015). Algerian natural montmorillonites for arsenic(III) removal in aqueous solution. International Journal of Environmental Science and Technology. 12(2):595-602. doi:10.1007/s13762-013-0437-3 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion http://dx.doi.org/10.1007/s13762-013-0437-3 es_ES
dc.description.upvformatpinicio 595 es_ES
dc.description.upvformatpfin 602 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 12 es_ES
dc.description.issue 2 es_ES
dc.relation.senia 281567
dc.identifier.eissn 1735-2630
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