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dc.contributor.authorCalero de Hoces, Mónica
dc.contributor.authorHernáinz Bermúdez de Castro, Francisco
dc.contributor.authorBlázquez García, Gabriel 
dc.contributor.authorMartín-Lara, María de los Ángeles
dc.contributor.authorTenorio Rivas, Germán
dc.date.accessioned2014-09-12T10:20:45Z
dc.date.available2014-09-12T10:20:45Z
dc.date.issued2009
dc.identifier.citationCalero, M.; et al. Biosorption kinetics of Cd (II), Cr (III) and Pb (II) in aqueous solutions by olive stone. Brazilian Journal of Chemical Engineering, 26(2): 265-273 (2009). [http://hdl.handle.net/10481/33000]es_ES
dc.identifier.issn0104-6632
dc.identifier.urihttp://hdl.handle.net/10481/33000
dc.description.abstractA by-product from olive oil production, olive stone, was investigated for the removal of Cd (II), Cr (III) and Pb (II) from aqueous solutions. The kinetics of biosorption are studied, analyzing the effect of the initial concentration of metal and temperature. Pseudo-first-order, pseudo-second-order, Elovich and intraparticle diffusion models have been used to represent the kinetics of the process and obtain the main kinetic parameters. The results show that the pseudo-second order model is the one that best describes the biosorption of the three metal ions for all the range of experimental conditions investigated. For the three metal ions, the maximum biosoption capacity and the initial biosorption rate increase when the initial metal concentration rises. However, the kinetic constant decreases when the initial metal concentration increases. The temperature effect on biosorption capacity for Cd (II) and Cr (III) is less significant; however, for Pb (II) the effect of temperature is more important, especially when temperature rises from 25 to 40ºC. The biosorption capacity at mmol/g of olive stone changes in the following order: Cr>Cd>Pb. Thus, for an initial concentration of 220 mg/ℓ, a maximum sorption capacity of 0.079 mmol/g for Cr (III), 0.065 mmol/g for Cd (II) and 0.028 mmol/g for Pb (II) has been obtained.es_ES
dc.description.sponsorshipThe authors are grateful to the Ministerio de Educación y Ciencia for the financial support received (Projet CTM2005-03957/TECNO) for the realization of this work.es_ES
dc.language.isoenges_ES
dc.publisherAssociação Brasileira de Engenharia Químicaes_ES
dc.subjectHeavy metals es_ES
dc.subjectBiosorptiones_ES
dc.subjectOlive stonees_ES
dc.subjectKineticses_ES
dc.subjectWastewateres_ES
dc.titleBiosorption kinetics of Cd(II), Cr(III) and Pb(II) in aqueous solutions by olive stonees_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.rights.accessRightsinfo:eu-repo/semantics/openAccesses_ES
dc.identifier.doi10.1590/S0104-66322009000200004


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