Biosorption of Chromium(III) and Copper(II) Ions onto Marine Alga Sargassum sp in a Fixed-bed Column

dc.creatorSilva, EA
dc.creatorVaz, LGL
dc.creatorVeit, MT
dc.creatorFagundes-Klen, MR
dc.creatorCossich, ES
dc.creatorTavares, CRG
dc.creatorCardozo, L
dc.creatorGuirardello, R
dc.date2010
dc.date2014-11-15T22:12:44Z
dc.date2015-11-26T16:16:42Z
dc.date2014-11-15T22:12:44Z
dc.date2015-11-26T16:16:42Z
dc.date.accessioned2018-03-28T23:01:41Z
dc.date.available2018-03-28T23:01:41Z
dc.identifierAdsorption Science & Technology. Multi-science Publ Co Ltd, v. 28, n. 5, n. 449, n. 464, 2010.
dc.identifier0263-6174
dc.identifierWOS:000286798300006
dc.identifier10.1260/0263-6174.28.5.449
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/55665
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/55665
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/55665
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1267519
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionThe simultaneous biosorption of chromium(III) and copper(II) ions onto Sargassum sp. alga in a fixed-bed column reactor was investigated. Experiments were undertaken to determine the effect of the feed concentration (1, 2, 3 and 6 mequiv/l) and the composition of the metal ion solution [0.25, 0.50 and 0.75 Cu(II)/Cr(III) ratio] on the behaviour of the breakthrough curves. A mathematical model was applied to describe the biosorption in a fixed-bed column. Equilibrium was described in this model in terms of a binary Langmuir-type adsorption process, together with mass transfer in the biosorbent based on the Linear Driving Force (LDF) model. The partial differential equations for the system were solved numerically by the finite volume method. The proposed mathematical model for the biosorption process provided a satisfactory description of the dynamics of metal ion removal in the column relative to the experimental data obtained. The adsorptive capacity of the biomass for Cr(III) ions in the binary system was greater than that for Cu(II) ions. The developed model could provide a useful tool for the optimization of Cr(III) and Cu(II) ion removal processes by Sargassum sp. biomass and the design of the corresponding fixed-bed columns.
dc.descriptionO TEXTO COMPLETO DESTE ARTIGO, ESTARÁ DISPONÍVEL À PARTIR DE FEVEREIRO DE 2015.
dc.description28
dc.description5
dc.description449
dc.description464
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionCNPq [478496/2007-9]
dc.languageen
dc.publisherMulti-science Publ Co Ltd
dc.publisherBrentwood
dc.publisherInglaterra
dc.relationAdsorption Science & Technology
dc.relationAdsorpt. Sci. Technol.
dc.rightsembargo
dc.sourceWeb of Science
dc.subjectAqueous-solution
dc.subjectMetal Biosorption
dc.subjectActivated Carbon
dc.subjectWaste-water
dc.subjectAdsorption
dc.subjectBiomass
dc.subjectRemoval
dc.subjectMicroalgae
dc.subjectExchange
dc.subjectCr(iii)
dc.titleBiosorption of Chromium(III) and Copper(II) Ions onto Marine Alga Sargassum sp in a Fixed-bed Column
dc.typeArtículos de revistas


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