Chlorine Disinfection Of Dye Wastewater: Implications For A Commercial Azo Dye Mixture.

dc.creatorVacchi, Francine Inforçato
dc.creatorAlbuquerque, Anjaina Fernandes
dc.creatorVendemiatti, Josiane Aparecida
dc.creatorMorales, Daniel Alexandre
dc.creatorOrmond, Alexandra B
dc.creatorFreeman, Harold S
dc.creatorZocolo, Guilherme Julião
dc.creatorZanoni, Maria Valnice Boldrin
dc.creatorUmbuzeiro, Gisela
dc.date2013-Jan
dc.date2015-11-27T13:32:36Z
dc.date2015-11-27T13:32:36Z
dc.date.accessioned2018-03-29T01:19:13Z
dc.date.available2018-03-29T01:19:13Z
dc.identifierThe Science Of The Total Environment. v. 442, p. 302-9, 2013-Jan.
dc.identifier1879-1026
dc.identifier10.1016/j.scitotenv.2012.10.019
dc.identifierhttp://www.ncbi.nlm.nih.gov/pubmed/23178834
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/201002
dc.identifier23178834
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1301235
dc.descriptionAzo dyes, the most widely used family of synthetic dyes, are often employed as colorants in areas such as textiles, plastics, foods/drugs/cosmetics, and electronics. Following their use in industrial applications, azo dyes have been found in effluents and various receiving waters. Chemical treatment of effluents containing azo dyes includes disinfection using chlorine, which can generate compounds of varying eco/genotoxicity. Among the widely known commercial azo dyes for synthetic fibers is C.I. Disperse Red 1. While this dye is known to exist as a complex mixture, reports of eco/genotoxicity involve the purified form. Bearing in mind the potential for adverse synergistic effects arising from exposures to chemical mixtures, the aim of the present study was to characterize the components of commercial Disperse Red 1 and its chlorine-mediated decoloration products and to evaluate their ecotoxicity and mutagenicity. In conducting the present study, Disperse Red 1 was treated with chlorine gas, and the solution obtained was analyzed with the aid of LC-ESI-MS/MS to identify the components present, and then evaluated for ecotoxicity and mutagenicity, using Daphnia similis and Salmonella/microsome assays, respectively. The results of this study indicated that chlorination of Disperse Red 1 produced four chlorinated aromatic compounds as the main products and that the degradation products were more ecotoxic than the parent dye. These results suggest that a disinfection process using chlorine should be avoided for effluents containing hydrophobic azo dyes such commercial Disperse Red 1.
dc.description442
dc.description302-9
dc.languageeng
dc.relationThe Science Of The Total Environment
dc.relationSci. Total Environ.
dc.rightsfechado
dc.rightsCopyright © 2012 Elsevier B.V. All rights reserved.
dc.sourcePubMed
dc.subjectAnimals
dc.subjectAzo Compounds
dc.subjectChlorine
dc.subjectChromatography, High Pressure Liquid
dc.subjectColoring Agents
dc.subjectDaphnia
dc.subjectDisinfection
dc.subjectSpectrometry, Mass, Electrospray Ionization
dc.subjectTandem Mass Spectrometry
dc.subjectToxicity Tests, Acute
dc.subjectWaste Water
dc.subjectWater Pollutants, Chemical
dc.subjectWater Purification
dc.titleChlorine Disinfection Of Dye Wastewater: Implications For A Commercial Azo Dye Mixture.
dc.typeArtículos de revistas


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