Processo UV/H2O2 como pós-tratamento para remoção de cor e polimento final em efluentes têxteis

• Main Authors: Maria Eliza Nagel-Hassemer, Lucila Adriani Coral, Flávio Rubens Lapolli, Maria Teresa Souza Pessoa de Amorim
• Format: Article
• Language: English
• Published: Sociedade Brasileira de Química 2012-01-01
• Series: Química Nova
• Subjects: textile effluents; advanced oxidation process; color removal
• Online Access: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422012000500007&lng=en&tlng=en

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.