화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Korean Journal of Chemical Engineering, Vol.29, No.9, 1203-1210, September, 2012
DOI10.1007/s11814-012-0011-6  Export Citation
Electro-Fenton treatment of synthetic organic dyes: Influence of operational parameters and kinetic study
Prabir Ghosh†, Lalit Kumar Thakur, Amar Nath Samanta, and Subhabrata Ray
  • Department of Chemical Engineering, IIT Kharagpur, Kharagpur 721302, India
E-mail:
This work investigates oxidative decolorization of two different dyes, Methylene blue and Titan yellow in aqueous solution using an environmentally friendly advanced electro-chemical oxidation (electro-Fenton) process. The effect of operating conditions like H2O2 concentration, current density, initial dye concentration was studied in a batch stirred cell. Individual decolorization decay kinetics for both dyes was investigated. The second-order absolute rate constants (L mol.1 s.1) between hydroxyl radical and dye have been calculated from experimental data by fitting it to the decolorization model. The apparent kinetic constants, kapp (s.1) for Methylene blue and Titan yellow dye decolorization were also determined. The experimental data showed a good fit to the theoretical model, which can predict data in a wide range of % dye decolorization. This process also reduces COD of the dye solution, and the unit energy demand (UED) in kWh/kg COD removed for different electrical current has been reported.
Keywords:Electro-Fenton Process;Hydroxyl Radicals;Environmental Pollution;Modeling;Kinetics;Rate Constants
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