Electro-oxidative Decolouration and Degradation of Amaranth Dye Wastewater in Batch Setup using Novel Ti/TiO₂-Ru₂O-IrO₂ Anode

Article type: Research Article

Authors: Khatu, Prathamesh M. | Suman, Harshika | Sangal, Vikas Kumar^{; *} | Vashishtha, Manish | Chaturvedi, Tarun

Affiliations: Department of Chemical Engineering, Malaviya National Institute of Technology, Jaipur – 302017, India

Correspondence: [*] Corresponding Author. [email protected]

Abstract: In this work, electro-oxidation of amaranth dye wastewater has been performed using dimensionally stable anode (DSA) and stainless-steel cathode. Ti/TiO2-Ru2O-IrO2 ternary electrode was used as the anode. Effect of various parameters such as current density, pH, voltage and time on the degradation and decolouration of dye was studied. Optimum conditions for the treatment of dye wastewater in batch setup were found. The complete decolouration was achieved in the first 5 min of the process. Decolouration and degradation of amaranth dye wastewater followed pseudo-first-order kinetics. The present research work unlocks the new horizon towards the degradation of dye wastewater employing the once through continuous process.

Keywords: Amaranth, decolouration, degradation, batch setup, dimensionally stable anode (DSA), Ti/TiO₂-Ru₂O-IrO₂

DOI: 10.3233/AJW210030

Journal: Asian Journal of Water, Environment and Pollution, vol. 18, no. 3, pp. 69-77, 2021