Adsorption of Ni(II), Pb(II) and Zn(II) on Ca(NO3)2-Neutralised Red Mud

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dc.contributor.authorPichinelli, Beatriz Cestaro [UNESP]
dc.contributor.authorda Silva, Mariana Scicia Gabriel [UNESP]
dc.contributor.authorda Conceição, Fabiano Tomazini [UNESP]
dc.contributor.authorMenegário, Amauri Antonio [UNESP]
dc.contributor.authorAntunes, Maria Lucia Pereira [UNESP]
dc.contributor.authorNavarro, Guillermo Rafael Beltran [UNESP]
dc.contributor.authorMoruzzi, Rodrigo Braga [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2018-12-11T17:08:23Z
dc.date.available2018-12-11T17:08:23Z
dc.date.issued2017-01-01
dc.description.abstractThis study aimed to investigate a novel method of red mud neutralisation by Ca(NO3)2 (NRM), keeping its adsorption capacity in relation to natural red mud (RM) for Ni(II), Pb(II) and Zn(II). Results pointed out that the neutralisation process decreases the pH and electrical conductivity values on NRM due to reaction between the carbonate and bicarbonate alkalinity of red mud and calcium from calcium nitrate to form calcite (CaCO3). The maximum adsorption capacity values of RM and NRM, respectively, were 1.78 and 1.79 mmol g−1 for Ni(II), 2.13 and 2.23 mmol g−1 for Pb(II) and 1.14 and 1.06 mmol g−1 for Zn(II). Pseudo-second-order model is the main responsible for the adsorption of these metals on RM and NRM. The adsorption reaction is endothermic and these metals have affinity to RM and NRM. Thus, it is possible to neutralise the red mud with Ca(NO3)2 without adsorption capacity losses of Ni(II), Pb(II) and Zn(II).en
dc.description.affiliationUNESP—Universidade Estadual Paulista Faculdade de Engenharia de Bauru
dc.description.affiliationUNESP—Universidade Estadual Paulista Instituto de Geociências e Ciências Exatas, Avenida 24-A, n° 1515, C. P. 178, CEP 13506-900, Bela Vista
dc.description.affiliationUNESP—Universidade Estadual Paulista Centro de Estudos Ambientais
dc.description.affiliationUNESP—Universidade Estadual Paulista Instituto de Ciência e Tecnologia
dc.description.affiliationUnespUNESP—Universidade Estadual Paulista Faculdade de Engenharia de Bauru
dc.description.affiliationUnespUNESP—Universidade Estadual Paulista Instituto de Geociências e Ciências Exatas, Avenida 24-A, n° 1515, C. P. 178, CEP 13506-900, Bela Vista
dc.description.affiliationUnespUNESP—Universidade Estadual Paulista Centro de Estudos Ambientais
dc.description.affiliationUnespUNESP—Universidade Estadual Paulista Instituto de Ciência e Tecnologia
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.identifierhttp://dx.doi.org/10.1007/s11270-016-3208-1
dc.identifier.citationWater, Air, and Soil Pollution, v. 228, n. 1, 2017.
dc.identifier.doi10.1007/s11270-016-3208-1
dc.identifier.file2-s2.0-85006158671.pdf
dc.identifier.issn1573-2932
dc.identifier.issn0049-6979
dc.identifier.scopus2-s2.0-85006158671
dc.identifier.urihttp://hdl.handle.net/11449/173930
dc.language.isoeng
dc.relation.ispartofWater, Air, and Soil Pollution
dc.relation.ispartofsjr0,589
dc.relation.ispartofsjr0,589
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectAdsorption
dc.subjectCa(NO3)2-neutralised red mud
dc.subjectEnvironmental management
dc.subjectTrace metals
dc.titleAdsorption of Ni(II), Pb(II) and Zn(II) on Ca(NO3)2-Neutralised Red Muden
dc.typeArtigo
unesp.author.lattes5919521356445801[4]
unesp.author.orcid0000-0002-1111-9758[4]

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