Feasibility Studies on the Removal of Rose Bengal Dye through Electrolytic Degradation

IJEP 42(10): 1178-1185 : Vol. 42 Issue. 10 (October 2022)

Aswin Sriram1* and Anish Nair2

1. Sri Sivasubramaniya Nadar College of Engineering, Department of Civil Engineering, Kalavakkam – 603 110, Tamil Nadu, India
2. Kalasalingam Academy of Research and Education, Department of Mechanical Engineering, Krishnankoil – 626 126, Tamil Nadu, India


Removal of colour during the treatment of wastewater has always urged the scientific community to create sustainable, cost-saving and novel methods in recent times. The present study aims to study the feasibility of the removal of Rose Bengal dye from an aqueous solution through an electrolytic oxidation reaction. Zinc and carbon cathodes are placed in an electrolytic solution containing Fenton’s reagent and Rose Bengal dye ranging from concentrations of 4 to 12 ppm. The operational parameters like voltage (4.8 V, 6 V and 7.2 V), catalyst concentration (0.18 mM, 0.27 mM and 0.36 mM) and electrode selection were varied to determine the maximum removal efficiency. The combination of 4.8 V – 0.36 mM – 4 ppm presented a maximum removal efficiency of 92.97% for zinc electrode while the combination of 7.2 V – 0.36 mM – 4 ppm showed maximum removal of 94.99% for carbon electrode in Rose Bengal removal from aqueous solution. The results from the laboratory studies were interpreted with a variance analysis through ANOVA and regression equations with a desirability factor of more than 94% were obtained.      


Rose Bengal, Advanced oxidation, Electro-Fenton, ANOVA, Genetic algorithm


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