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Química Nova

versão impressa ISSN 0100-4042

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NAGEL-HASSEMER, Maria Eliza; CORAL, Lucila Adriani; LAPOLLI, Flávio Rubens  e  AMORIM, Maria Teresa Souza Pessoa de. UV/H2O2 process as post-treatment for removal of color and polishing end in textile wastewater. Quím. Nova [online]. 2012, vol.35, n.5, pp.900-904. ISSN 0100-4042.  https://doi.org/10.1590/S0100-40422012000500007.

Several problems are involved the treatment plants of textile effluents, mainly the low efficiency of color removal. This paper presents an alternative of post-treatment by UV/H2O2 process, for color removal in biologically treated textile effluents. The tests were performed in a photochemical reactor and samples were taken at different times to perform analyses. Using 250 mgH2O2.L-1, 96% removal of color was verified, indicating the dyes degradation. A reduction of 84% of aromatics compounds, 90% of TSS removal, and a further reduction of the organic fraction were observed, demonstrating that the process is effective as a post-treatment of effluents from textile industries.

Palavras-chave : textile effluents; advanced oxidation process; color removal.

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