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dc.contributor.CRUESPUniversidade Estadual de Campinaspt_BR
dc.typeArtigo de periódicopt_BR
dc.titleKinetics of the oxidation of formaldehyde in a flow electrochemical reactor with TiO2/RuO2 anodept_BR
dc.contributor.authorFukunaga, MTpt_BR
dc.contributor.authorGuimaraes, JRpt_BR
dc.contributor.authorBertazzoli, Rpt_BR
unicamp.authorBertazzoli, Rodnei Univ Estadual Campinas, Fac Engn Mecan, Dept Mat Engn, BR-13083970 Campinas, SP, Brazilpt_BR
unicamp.authorFukunaga, Mara Terumi Guimaraes, Jose Roberto Univ Estadual Campinas, Fac Engn Civil Arquitetura & Urbanismo, Dept Saneamento & Ambiente, BR-13083852 Campinas, SP, Brazilpt_BR
dc.subjectformaldehyde electrooxidationpt_BR
dc.subjectoxide anodespt_BR
dc.subjectelectrochemical reactorpt_BR
dc.description.abstractThis paper reports the electrochemical degradation of solutions containing formaldehyde by means of an electrochemical tubular flow reactor with a titanium anode coated with metal oxides (Ti/Ru0.3Ti0.7O2). Due to the simplicity and low molecular weight of the compound it was possible to achieve high mineralization rates; the oxidation reaction of formaldehyde as well as TOC and COD removal were controlled by mass transfer. For solutions with 0.4 g L-1 of formaldehyde, electrodegradation followed a pseudo first-order kinetics, and the mass transport coefficients were calculated. After the experiments, a 97% reduction of TOC was observed, and the final formaldehyde and COD concentrations were below the detection limit threshold. For solutions with 12 g L-1 of formaldehyde processed at 100 mA cm-2, a transition from a zero-order kinetics to a first-order kinetics started at the concentration for which the current density corresponded to the value of the limiting current. (c) 2007 Elsevier B.V. All rights
dc.relation.ispartofChemical Engineering Journalpt_BR
dc.relation.ispartofabbreviationChem. Eng. J.pt_BR
dc.publisherElsevier Science Sapt_BR
dc.identifier.citationChemical Engineering Journal. Elsevier Science Sa, v. 136, n. 41700, n. 236, n. 241, 2008.pt_BR
dc.sourceWeb of Sciencept_BR
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dc.description.provenanceMade available in DSpace on 2015-11-26T17:08:13Z (GMT). No. of bitstreams: 2 WOS000254794300021.pdf: 400792 bytes, checksum: 90f76f41383f43dd29eb08cfa155790f (MD5) WOS000254794300021.pdf.txt: 22574 bytes, checksum: d2a6da9eaaa0cfb55a46f9d123e1ef9d (MD5) Previous issue date: 2008en
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