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Proceedings of the International Academy of Ecology and Environmental Sciences, 2021, 11(2): 43-51
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Article

Experimental study on performance assessment of Fenton and photo- Fenton oxidation process for methylene blue

B. Gowtham1, S. Pauline2
1Department of Civil Engineering, National Engineering College, Kovilpatti, Tamil Nadu, India
2Alagappa Chettiar Government College of Engineering and Technology, Karaikudi, Tamil Nadu, India

Received 11 January 2021;Accepted 2 February 2021;Published 1 June 2021
IAEES

Abstract
This project focuses on the suitability of Fenton and photo-Fenton processes for the degradation of methylene blue dye in terms of COD removal and it is optimized for experimental parameters such as pH, H2O2 concentration, FeSO4.7H2O concentration and contact time. The Fenton process and photo-Fenton process is found to be effective under pH 3. The maximum efficiency of COD removal for 50 mg/L of Methylene blue is attained at optimum concentration of 10 ml of H2O2, 50 mg/L of Fe2+ and contact time of 30 minutes. The photo-Fenton oxidation process is also being carried out and it is also optimized for experimental parameters. The efficiency of COD removal for methylene blue is attained at optimum concentration of 8 ml of H2O2, 50 mg/L of Fe2+ and at a contact time of 30 minutes. Finally, on comparing both the processes, the best method with maximum removal efficiency is identified as photo-Fenton process for degradation of dye. At fully optimized condition, the efficiency of Fenton process is 65% and that of photo-Fenton is 82%, which is 17% higher than the Fenton process.

Keywords dye;Fenton process;photo-Fenton process;COD removal.


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