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<abstract language="eng">In this work the treatment of textile dyeing baths by a sequential reductive-oxidative process was evaluated, aiming its utilization in new dyeing process. The results demonstrated that reactive dyes can be easily degraded by reductive processes mediated by zero-valent iron, a fact that induces decolorizations of about 80%. Sequential photo-Fenton processes permit almost total removal of the residual color with elimination of 90% of the COD content. The reuse of treated residues permits the achievement of materials that attend practically all textile specifications, with exception of the color difference parameter (&#916;E), which is unsatisfactory toward the importation standards, but adequate for the national market

Tratamento de banhos de tingimento têxtil por processos foto-Fenton e avaliação da potencialidade de reuso