Adsorption of chromium ions on oil shale waste

dc.contributor.authorMelo, Marcus Antônio de Freitas
dc.contributor.authorPimentel, Patrícia Mendonça
dc.contributor.authorOliveira, Rosane Maria Pessoa Betânio
dc.contributor.authorMelo, Dulce Maria de Araújo
dc.contributor.authorAssunção, Ary Leonídio do Carmo
dc.contributor.authorGonzales, Gaspar
dc.date.accessioned2021-12-06T20:03:51Z
dc.date.available2021-12-06T20:03:51Z
dc.date.issued2011
dc.description.resumoThe adsorption of chromium (III) ions onto retorted shale, a waste product of the pyrolysis of oil shale, was investigated as a function of initial pH, temperature, and initial metal ion concentration. Adsorption experiments were carried out in a batch system and the uptake of the metallic ion was studied by using an initial concentration range of 200-500 mg L-1. The pseudo-first and pseudo-second order models were used to predict the rate constants of the adsorption system. Both Langmuir and Freundlich models were used to fit the equilibrium data; however, the former resulted in best fitting. Thermodynamic parameters such as enthalpy, free energy, and entropy changes were calculated. The values of such parameters showed that Cr(III) adsorption was favored at high temperaturespt_BR
dc.identifier.citationPIMENTEL, P. M.; OLIVEIRA, R. M. P. B.; MELO, D. M. A.; MELO, M. A. F.; ASSUNÇÃO, A. L. C.; GONZALES, G.. ADSORPTION OF CHROMIUM IONS ON OIL SHALE WASTE. Brazilian Journal of Petroleum and Gas, v. 5, p. 65-73, 2011. Disponível em: http://www.portalabpg.org.br/bjpg/index.php/bjpg/article/view/158. Acesso em: 18 ago. 2021. http://dx.doi.org/10.5419/bjpg2011-0008pt_BR
dc.identifier.doi10.5419/bjpg2011-0008
dc.identifier.issn1982-0593
dc.identifier.urihttps://repositorio.ufrn.br/handle/123456789/45205
dc.languageenpt_BR
dc.publisherBrazilian Journal Of Petroleum And Gaspt_BR
dc.subjectChromium (III)pt_BR
dc.subjectHeavy metalspt_BR
dc.subjectRetorted shalept_BR
dc.subjectAdsorption isothermspt_BR
dc.subjectWastewaterspt_BR
dc.titleAdsorption of chromium ions on oil shale wastept_BR
dc.typearticlept_BR

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