Abstract
Synthetic dye is a widely used product, but dyeing industrial effluents have adversely impacted environment. During dyeing processes, 12% of dye input is wasted, and approximately 20% of this amount is discharged to the environment. In this study, Electro Fenton (EF) system was applied to treat a textile wastewater. H2O2 forming was accelerated by aeration at 1 lair/lsample/min and graphite electrode was used to reduce investment cost. Response surface methodology - Central composite Design (CCF) was used to investigate the effects of pH, Fe2+ concentration, and voltage on the removal efficiency. At pH 2.78, Fe2+ concentration of 2.0 mMol/l, and voltage of 16 V, the treatment system reached its optimum operating condition. Under this condition, color and COD (Chemical oxygen demand) in the effluent were 57 ± 2 Pt-Co and 56 ± 1 mg/l, respectively, after 30 min of treatment which met the national standard (QCVN 13:2015/BTNMT, column A).
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Nguyen, D.D.D., Nguyen, T.T., Nguyen, T.P. (2018). Optimization of Decolorization and COD Removal from Textile Wastewater Using Electro Fenton Process. In: Tran-Nguyen, HH., Wong, H., Ragueneau, F., Ha-Minh, C. (eds) Proceedings of the 4th Congrès International de Géotechnique - Ouvrages -Structures. CIGOS 2017. Lecture Notes in Civil Engineering , vol 8. Springer, Singapore. https://doi.org/10.1007/978-981-10-6713-6_102
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DOI: https://doi.org/10.1007/978-981-10-6713-6_102
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