Modeling of copper(II) biosorption by marine alga Sargassum sp in fixed-bed column

dc.creatorda Silva, EA
dc.creatorCossich, ES
dc.creatorTavares, CRG
dc.creatorCardozo, L
dc.creatorGuirardello, R
dc.date2002
dc.dateDEC 31
dc.date2014-11-14T12:18:40Z
dc.date2015-11-26T17:14:53Z
dc.date2014-11-14T12:18:40Z
dc.date2015-11-26T17:14:53Z
dc.date.accessioned2018-03-29T00:03:09Z
dc.date.available2018-03-29T00:03:09Z
dc.identifierProcess Biochemistry. Elsevier Sci Ltd, v. 38, n. 5, n. 791, n. 799, 2002.
dc.identifier1359-5113
dc.identifierWOS:000179722300021
dc.identifier10.1016/S0032-9592(02)00231-5
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/82295
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/82295
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/82295
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1281909
dc.descriptionThe biosorption of copper(II) by the marine alga Sargassum sp. was investigated in a batch reactor and in a fixed-bed column (temperature = 30 degreesC; pH 3.5). Langmuir and Freundlich sorption models were used to represent the equilibrium data. Experimental breakthrough curves in a fixed-bed column were obtained with a flow rate of 6 ml/min and feed concentration of 1, 2, 3 and 6 meq/l. A model that describes the dynamics of copper(II) ion sorption in the column was obtained from the mass balance in the fluid phase and the biosorbent. According to mass transfer three equations are available to represent the rate of adsorption. The model parameters: mass transfer coefficients, axial dispersion coefficients and constants of the kinetic equation, had their values adjusted from the experimental breakthrough curves. The model in which the mass transfer is controlled by diffusion in the biosorbent best represented the fixed-bed column dynamics. (C) 2002 Elsevier Science Ltd. All rights reserved.
dc.description38
dc.description5
dc.description791
dc.description799
dc.languageen
dc.publisherElsevier Sci Ltd
dc.publisherOxford
dc.publisherInglaterra
dc.relationProcess Biochemistry
dc.relationProcess Biochem.
dc.rightsfechado
dc.rightshttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dc.sourceWeb of Science
dc.subjectbiosorption
dc.subjectcopper
dc.subjectmodeling
dc.subjectfixed-bed column
dc.subjectSargassum
dc.subjectHeavy-metals
dc.subjectIon-exchange
dc.subjectEquilibria
dc.subjectMicroalgae
dc.subjectRemoval
dc.titleModeling of copper(II) biosorption by marine alga Sargassum sp in fixed-bed column
dc.typeArtículos de revistas


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