Evaluation of Cu2+ ions adsorption equilibrium in calcined bentonite clay and after treatment with sodium

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dc.contributor.authorSoeiro, Thatyana Nunes
dc.contributor.authorDe Freitas, Emanuelle Dantas
dc.contributor.authorMaia, Gabriella Simon
dc.contributor.authorSantos, Adriana Barbosa [UNESP]
dc.contributor.authorVieira, Melissa Gurgel Adeodato
dc.contributor.authorGuirardello, Reginaldo
dc.contributor.institutionUniversidade Estadual de Campinas (UNICAMP)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2018-12-11T17:33:01Z
dc.date.available2018-12-11T17:33:01Z
dc.date.issued2017-01-01
dc.description.abstractIndustrial activities are responsible for the increasing environmental degradation through unsustainable consumption of natural resources and the improper disposal of various wastes. In Brazil, of all generated wastes, effluents containing heavy metals are causing more problems, because they have negative effects on the ecosystem, leading to reduced water quality which harms aquatic life, wildlife, flora, and also human health. Hence, effluents containing heavy metals have to suffer a purification treatment to remove these microcontaminants. There are several processes used to remove metal ions from wastewater, among which adsorption presents greater possibilities of use, because it is very effective in removing heavy metals even in low concentrations. Therefore, this work aims to evaluate the Cu2+ ion adsorption equilibrium in calcined bentonite clay and clay after calcination and sodification (dispersed sodium clay) treatments. Adsorption isotherms were obtained at environmental temperature (25 oC). Langmuir, Freundlich and Dubinin-Radushkevich models were applied to fit the experimental data. It was observed an influence on the sodification treatment of the clay in its Cu2+ ion removal capacity, depending on the ion exchange mechanism involved.en
dc.description.affiliationSchool of Chemical Engineering University of Campinas UNICAMP
dc.description.affiliationDepartment of Computer Sciences and Statistics São Paulo State University (UNESP)
dc.description.affiliationUnespDepartment of Computer Sciences and Statistics São Paulo State University (UNESP)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.format.extent619-624
dc.identifierhttp://dx.doi.org/10.3303/CET1757104
dc.identifier.citationChemical Engineering Transactions, v. 57, p. 619-624.
dc.identifier.doi10.3303/CET1757104
dc.identifier.issn2283-9216
dc.identifier.lattes7055362276236996
dc.identifier.orcid0000-0003-4076-2475
dc.identifier.scopus2-s2.0-85021690068
dc.identifier.urihttp://hdl.handle.net/11449/178982
dc.language.isoeng
dc.relation.ispartofChemical Engineering Transactions
dc.relation.ispartofsjr0,293
dc.rights.accessRightsAcesso restrito
dc.sourceScopus
dc.titleEvaluation of Cu2+ ions adsorption equilibrium in calcined bentonite clay and after treatment with sodiumen
dc.typeArtigo
unesp.author.lattes7055362276236996[4]
unesp.author.orcid0000-0003-4076-2475[4]

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