4.7 Article

Effect of operating parameters on the decolorization and oxidation of textile wastewater by the fluidized-bed Fenton process

期刊

SEPARATION AND PURIFICATION TECHNOLOGY
卷 83, 期 -, 页码 100-105

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ELSEVIER
DOI: 10.1016/j.seppur.2011.09.021

关键词

Textile wastewater; Hydrogen peroxide; Oxidation; Decolorization; Fluidized-bed Fenton

资金

  1. National Science Council of Taiwan [NSC 96-2628-E-041-001-MY3]

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This study investigated the treatment of textile industrial wastewater from a dyeing and finishing mill by the fluidized-bed Fenton process. Operating variables, such as the pH, concentrations of H2O2 and Fe2+, are used to explore the respective effects on the oxidation and decolorization of the textile wastewater. The experimental results were estimated in terms of chemical oxygen demand (COD) and color reductions to examine the treatment efficiency. The optimum pH was observed to be around 3. The decolorization and the oxidation efficiencies could achieve 92% and 49%, respectively, in only 2 min of reaction under the concentration ratio of [COD]:[Fe2+]:[H2O2] = 1:0.95:3.17. By using this process, the oxidation of textile wastewater increased with increasing H2O2 dosage. The highest level of oxidation was 87%. (C) 2011 Elsevier B.V. All rights reserved.

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