Photoassisted electrochemical degradation of organic pollutants on a DSA type oxide electrode: Process test for a phenol synthetic solution and its application for the E1 bleach kraft mill effluent

dc.creatorPelegrini, RT
dc.creatorFreire, RS
dc.creatorDuran, N
dc.creatorBertazzoli, R
dc.date2001
dc.date37073
dc.date2014-11-17T18:16:58Z
dc.date2015-11-26T17:41:16Z
dc.date2014-11-17T18:16:58Z
dc.date2015-11-26T17:41:16Z
dc.date.accessioned2018-03-29T00:23:02Z
dc.date.available2018-03-29T00:23:02Z
dc.identifierEnvironmental Science & Technology. Amer Chemical Soc, v. 35, n. 13, n. 2849, n. 2853, 2001.
dc.identifier0013-936X
dc.identifierWOS:000169600100052
dc.identifier10.1021/es001784j
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/59560
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/59560
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/59560
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1286959
dc.descriptionIn this paper, the performance of a photoassisted electrolysis process, for the degradation of organic pollutants, is investigated. Results obtained in this work have shown that the thermally prepared anode of titanium, coated with 70TiO(2)/30RuO(2), exhibits photoactivity and may be used for the treatment of effluents. A synthetic phenol aqueous solution and a real paper mill industry effluent were treated. Kinetic analysis showed a synergetic effect of electrolysis and photocatalysis and degradation rates are an order of magnitude greater than the sum of the results reached by using both processes individually. Using a 125 W mercury bulb and 20 mA cm(-2), the phenol concentration decayed 85% in 90 min and 70% reduction of TOC was obtained. In the application of the treatment process for the degradation of the El bleach Kraft mill effluent, total phenols were practically eliminated in a short period of processing time, and color, usually resistant to biological treatment, was reduced to 10% from its initial value measured in terms of absorbance. Reductions of AOX, GOD, and BOD by 25%, 30%, and 35%, respectively, were also observed.
dc.description35
dc.description13
dc.description2849
dc.description2853
dc.languageen
dc.publisherAmer Chemical Soc
dc.publisherWashington
dc.publisherEUA
dc.relationEnvironmental Science & Technology
dc.relationEnviron. Sci. Technol.
dc.rightsfechado
dc.sourceWeb of Science
dc.subjectSemiconductor Photocatalysis
dc.subjectHeterogeneous Photocatalysis
dc.subjectOxidation
dc.titlePhotoassisted electrochemical degradation of organic pollutants on a DSA type oxide electrode: Process test for a phenol synthetic solution and its application for the E1 bleach kraft mill effluent
dc.typeArtículos de revistas


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