Avaliação do processo foto-Fenton na descoloração de um corante têxtil comercial

Andressa Antunes Bortoti; Mauricio Ferreira da Rosa; Reinaldo Aparecido Bariccatti; Viviane da Silva Lobo

doi:10.5433/1679-0375.2016v37n1p81

Evaluation of the photo-Fenton process on discoloration of a commercial textile dye

Authors

Andressa Antunes Bortoti Bacharelado em Química, UNIOESTE/Toledo-PR
Mauricio Ferreira da Rosa Programa de Mestrado em Ciências Ambientais, Centro de Engenharias e Ciências Exatas, UNIOESTE, campus Toledo/PR
Reinaldo Aparecido Bariccatti Programa de Mestrado em Ciências Ambientais, Centro de Engenharias e Ciências Exatas, UNIOESTE/Toledo
Viviane da Silva Lobo Tecnologia em Processos Químicos, UTFPR, campus Toledo

DOI:

https://doi.org/10.5433/1679-0375.2016v37n1p81

Keywords:

Advanced Oxidative Processes, Dye, Environmental Chemistry, Photodegradation

Abstract

The present study aimed to evaluate the applicability of photo-Fenton process for the degradation of a red colored commercial dye (Guarany® Tingecor 09). The process optimization was performed using a 23 factorial design, varying the volumes added of Fe3+ and H2O2 and the pH of the medium. The solutions containing the dye and the Fenton reagent were irradiated in a photoreactor equipped with a mercury vapor lamp of 125 W and the process development was accompanied by the acquisition of the absorption spectra UV-Vis in 10-minute intervals. The experimental design has shown that the best results were obtained with less amount of Fe3+ (0.1 ml), larger volume of H2O2 (1.0 mL) and pH 5. The efficiency of the dye decolorization was evaluated by a phytotoxicity test employing Lactuca sativa L. seeds. The results showed to be satisfactory for the dye decolorization, and the wastes produced in the degradation process didn’t show toxicity.

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Published

2016-03-16

How to Cite

Bortoti, A. A., Rosa, M. F. da, Bariccatti, R. A., & Lobo, V. da S. (2016). Evaluation of the photo-Fenton process on discoloration of a commercial textile dye. Semina: Ciências Exatas E Tecnológicas, 37(1), 81–90. https://doi.org/10.5433/1679-0375.2016v37n1p81

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Issue

Vol. 37 No. 1 (2016)

Section

Original Article

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