Prediction of the copper (II) ions dynamic removal from a medium by using mathematical models with analytical solution

dc.creatorBorba, CE
dc.creatorda Silva, EA
dc.creatorFagundes-Klen, MR
dc.creatorKroumov, AD
dc.creatorGuirardello, R
dc.date2008
dc.date44256
dc.date2014-11-17T19:15:04Z
dc.date2015-11-26T17:41:50Z
dc.date2014-11-17T19:15:04Z
dc.date2015-11-26T17:41:50Z
dc.date.accessioned2018-03-29T00:23:39Z
dc.date.available2018-03-29T00:23:39Z
dc.identifierJournal Of Hazardous Materials. Elsevier Science Bv, v. 152, n. 1, n. 366, n. 372, 2008.
dc.identifier0304-3894
dc.identifierWOS:000254660900044
dc.identifier10.1016/j.jhazmat.2007.07.005
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/80914
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/80914
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/80914
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1287122
dc.descriptionA copper (II) ions biosorption by Sargassum sp. biomass was studied in a fixed bed column at 30 degrees C and pH 3.5. The experimental curves were obtained for the following feed concentrations -2.08, 4.16, 6.42 and 12.72 mmol/L of the copper ions. The mathematical models developed by Thomas and Bohart-Adams were used for description of ions sorption process in the column. The models principle hypothesis is that the mass transfer controlling stage of the process is the adsorption kinetics between sorbate and adsorbent. The phenomena such as intraparticle diffusion, a mass transfer external resistance and axial dispersion effects were out of considerations. Some of the models parameters were experimentally determined (rho(B), epsilon, u(0), C-0) and the others were evaluated on the bases of the experimental data (k(a1), k(a2)). The unique fitting parameter in all models was the adsorption kinetic constant. The identification procedure was based on the least square statistical method. Simulation results show that the models describe well a copper ions sorption process in a fixed bed column. The used models can be considered as useful tools for adsorption process design and optimization in fixed bed column by using algae biomass of Sargassum sp. as an adsorbent. (c) 2007 Elsevier B.V.. All rights reserved.
dc.description152
dc.description1
dc.description366
dc.description372
dc.languageen
dc.publisherElsevier Science Bv
dc.publisherAmsterdam
dc.publisherHolanda
dc.relationJournal Of Hazardous Materials
dc.relationJ. Hazard. Mater.
dc.rightsfechado
dc.rightshttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dc.sourceWeb of Science
dc.subjectBohart-Adams
dc.subjectThomas
dc.subjectfixed bed
dc.subjectbreakthrough curve
dc.subjectFixed-bed Column
dc.subjectBreakthrough Curves
dc.subjectAqueous-solution
dc.subjectBiosorption
dc.subjectAdsorption
dc.subjectBehavior
dc.subjectCadmium
dc.subjectBiomass
dc.subjectLead(ii)
dc.subjectChaff
dc.titlePrediction of the copper (II) ions dynamic removal from a medium by using mathematical models with analytical solution
dc.typeArtículos de revistas


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