Characterisation of a laboratory electrochemical ozonation system and its application in advanced oxidation processes

dc.creatorDa Silva, LM
dc.creatorFranco, DV
dc.creatorForti, JC
dc.creatorJardim, WF
dc.creatorBoodts, JFC
dc.date2006
dc.dateMAY
dc.date2014-11-17T22:11:14Z
dc.date2015-11-26T17:42:48Z
dc.date2014-11-17T22:11:14Z
dc.date2015-11-26T17:42:48Z
dc.date.accessioned2018-03-29T00:24:47Z
dc.date.available2018-03-29T00:24:47Z
dc.identifierJournal Of Applied Electrochemistry. Springer, v. 36, n. 5, n. 523, n. 530, 2006.
dc.identifier0021-891X
dc.identifierWOS:000237090700002
dc.identifier10.1007/s10800-005-9067-x
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/62746
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/62746
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/62746
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1287408
dc.descriptionAn electrochemical reactor for oxygen/ozone production was developed using perforated planar electrodes. An electroformed beta-PbO2 coating, deposited on a platinised titanium substrate, was employed as anode while the cathode was a platinised titanium substrate. The electrodes were pressed against a solid polymer electrolyte to minimise ohmic drop and avoid mixing of the gaseous products (H-2 and O-2/O-3). Electrochemical ozone production (EOP) was investigated as function of current density, temperature and electrolyte composition. Electrochemical characterisation demonstrated ozone current efficiency, F EOP, ozone production rate (g h(-1)), v(EOP), and grams of O-3 per total energy demand (g h(-1) W-1), v(EOP) increase on decreasing electrolyte temperature and increasing current density. The best reactor performance for EOP was obtained with the base electrolyte (H2SO4 3.0 mol dm(-3)) containing 0.03 mol dm(-3) KPF6. Degradation of reactive dyes used in the textile industry (Reactive Yellow 143 and Reactive Blue 264) with electrochemically-generated ozone was investigated in alkaline medium as function of ozone load (mg h(-1)) and ozonation time. This investigation revealed ozonation presents very good efficiency for both solution decolouration and total organic carbon (TOC) removal.
dc.description36
dc.description5
dc.description523
dc.description530
dc.languageen
dc.publisherSpringer
dc.publisherDordrecht
dc.publisherHolanda
dc.relationJournal Of Applied Electrochemistry
dc.relationJ. Appl. Electrochem.
dc.rightsfechado
dc.rightshttp://www.springer.com/open+access/authors+rights?SGWID=0-176704-12-683201-0
dc.sourceWeb of Science
dc.subjectadvanced oxidation processes
dc.subjectdegradation
dc.subjectelectrochemistry
dc.subjectozone
dc.subjectreactive dyes
dc.subjectOzone Production
dc.subjectWaste-water
dc.subjectDecolorization
dc.subjectAnodes
dc.subjectElectrolyte
dc.subjectDegradation
dc.subjectGeneration
dc.subjectKinetics
dc.subjectReactor
dc.subjectDye
dc.titleCharacterisation of a laboratory electrochemical ozonation system and its application in advanced oxidation processes
dc.typeArtículos de revistas


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