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Optimized treatment conditions for textile wastewater reuse using photocatalytic processes under UV and visible light sources.
Environ Sci Pollut Res Int. 2017 Mar; 24(7):6222-6232.ES

Abstract

In this study, photo-Fenton systems using visible light sources with iron and ferrioxalate were tested for the DOC degradation and decolorization of textile wastewater. Textile wastewaters originated after the dyeing stage of dark-colored tissue in the textile industry, and the optimization of treatment processes was studied to produce water suitable for reuse. Dissolved organic carbon, absorbance, turbidity, anionic concentrations, carboxylic acids, and preliminary cost analysis were performed for the proposed treatments. Conventional photo-Fenton process achieved near 99 % DOC degradation rates and complete absorbance removal, and no carboxylic acids were found as products of degradation. Ferrioxalate photo-Fenton system achieved 82 % of DOC degradation and showed complete absorbance removal, and oxalic acid has been detected through HPLC analysis in the treated sample. In contrast, photo-peroxidation with UV light was proved effective only for absorbance removal, with DOC degradation efficiency near 50 %. Treated wastewater was compared with reclaimed water and had a similar quality, indicating that these processes can be effectively applied for textile wastewater reuse. The results of the preliminary cost analysis indicated costs of 0.91 to 1.07 US$ m-3 for the conventional and ferrioxalate photo-Fenton systems, respectively. Graphical Abstract ᅟ.

Authors+Show Affiliations

Department of Sanitary and Environmental Engineering, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, Belo Horizonte, Minas Gerais, 31270-901, Brazil.Department of Sanitary and Environmental Engineering, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, Belo Horizonte, Minas Gerais, 31270-901, Brazil.Department of Sanitary and Environmental Engineering, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, Belo Horizonte, Minas Gerais, 31270-901, Brazil.Department of Sanitary and Environmental Engineering, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, Belo Horizonte, Minas Gerais, 31270-901, Brazil.Department of Sanitary and Environmental Engineering, Universidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, Belo Horizonte, Minas Gerais, 31270-901, Brazil. camila@desa.ufmg.br.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

26865484

Citation

Starling, Maria Clara V M., et al. "Optimized Treatment Conditions for Textile Wastewater Reuse Using Photocatalytic Processes Under UV and Visible Light Sources." Environmental Science and Pollution Research International, vol. 24, no. 7, 2017, pp. 6222-6232.
Starling MCVM, Castro LAS, Marcelino RBP, et al. Optimized treatment conditions for textile wastewater reuse using photocatalytic processes under UV and visible light sources. Environ Sci Pollut Res Int. 2017;24(7):6222-6232.
Starling, M. C. V. M., Castro, L. A. S., Marcelino, R. B. P., Leão, M. M. D., & Amorim, C. C. (2017). Optimized treatment conditions for textile wastewater reuse using photocatalytic processes under UV and visible light sources. Environmental Science and Pollution Research International, 24(7), 6222-6232. https://doi.org/10.1007/s11356-016-6157-8
Starling MCVM, et al. Optimized Treatment Conditions for Textile Wastewater Reuse Using Photocatalytic Processes Under UV and Visible Light Sources. Environ Sci Pollut Res Int. 2017;24(7):6222-6232. PubMed PMID: 26865484.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Optimized treatment conditions for textile wastewater reuse using photocatalytic processes under UV and visible light sources. AU - Starling,Maria Clara V M, AU - Castro,Luiz Augusto S, AU - Marcelino,Rafaela B P, AU - Leão,Mônica M D, AU - Amorim,Camila C, Y1 - 2016/02/11/ PY - 2015/11/27/received PY - 2016/01/20/accepted PY - 2016/2/13/pubmed PY - 2017/5/23/medline PY - 2016/2/12/entrez KW - Advanced oxidation processes KW - Photo-Fenton KW - Textile wastewater KW - Visible light irradiation KW - Water reuse SP - 6222 EP - 6232 JF - Environmental science and pollution research international JO - Environ Sci Pollut Res Int VL - 24 IS - 7 N2 - In this study, photo-Fenton systems using visible light sources with iron and ferrioxalate were tested for the DOC degradation and decolorization of textile wastewater. Textile wastewaters originated after the dyeing stage of dark-colored tissue in the textile industry, and the optimization of treatment processes was studied to produce water suitable for reuse. Dissolved organic carbon, absorbance, turbidity, anionic concentrations, carboxylic acids, and preliminary cost analysis were performed for the proposed treatments. Conventional photo-Fenton process achieved near 99 % DOC degradation rates and complete absorbance removal, and no carboxylic acids were found as products of degradation. Ferrioxalate photo-Fenton system achieved 82 % of DOC degradation and showed complete absorbance removal, and oxalic acid has been detected through HPLC analysis in the treated sample. In contrast, photo-peroxidation with UV light was proved effective only for absorbance removal, with DOC degradation efficiency near 50 %. Treated wastewater was compared with reclaimed water and had a similar quality, indicating that these processes can be effectively applied for textile wastewater reuse. The results of the preliminary cost analysis indicated costs of 0.91 to 1.07 US$ m-3 for the conventional and ferrioxalate photo-Fenton systems, respectively. Graphical Abstract ᅟ. SN - 1614-7499 UR - https://www.unboundmedicine.com/medline/citation/26865484/Optimized_treatment_conditions_for_textile_wastewater_reuse_using_photocatalytic_processes_under_UV_and_visible_light_sources_ L2 - https://dx.doi.org/10.1007/s11356-016-6157-8 DB - PRIME DP - Unbound Medicine ER -