Article: Comparison of high-performance TiO2-coated Al electrode (TiO2/Al) and conventional electrodes in removal of dyes using electrocoagulation reactor Journal: International Journal of Environment and Waste Management (IJEWM) 2025 Vol.37 No.4 pp.415 - 432 Abstract: The process of electro-coagulation is quite complex in nature and an understanding about the process and the effect of primary operating parameters is a prerequisite for larger scale and field application. This work aims at studying the performance of electro coagulation reactor in a batch scale system for the treatment of textile dyeing wastewater using iron and aluminium electrodes. The influence of the essential operating parameters like the initial dye concentration, applied current, pH, reaction time and the electrolyte concentration in removal of dye were premeditated. Also, the impact of these parameters on the economic parameters such as electrode and energy consumption which are directly proportional to the operation cost was also analysed. TiO2/Al electrode showed maximum colour removal efficiency of nearly 100% with 60 mA of current whereas, Fe and Al electrodes showed maximum efficiency of 98% and 75% at 120 mA respectively. Inderscience Publishers - linking academia, business and industry through research

Title: Comparison of high-performance TiO₂-coated Al electrode (TiO₂/Al) and conventional electrodes in removal of dyes using electrocoagulation reactor

Authors: S. Vinodha; P. Jegathambal; R. Vidhya; A. Sivakami

Addresses: Department of Civil Engineering, Jayaraj Annapackiam CSI College of Engineering, Nazareth, Thoothukudi – 626 617, Tamil Nadu, India ' Karunya Institute of Technology and Sciences, Water Institute, Coimbatore-641114, Tamil Nadu, India ' Department of Chemistry, Hindusthan College of Engineering and Technology, Coimbatore-641050, Tamil Nadu, India ' Department of Physics, Sri Eshwar College of Engineering, Kinathukadavu, Coimbator-641202, Tamil Nadu, India

Abstract: The process of electro-coagulation is quite complex in nature and an understanding about the process and the effect of primary operating parameters is a prerequisite for larger scale and field application. This work aims at studying the performance of electro coagulation reactor in a batch scale system for the treatment of textile dyeing wastewater using iron and aluminium electrodes. The influence of the essential operating parameters like the initial dye concentration, applied current, pH, reaction time and the electrolyte concentration in removal of dye were premeditated. Also, the impact of these parameters on the economic parameters such as electrode and energy consumption which are directly proportional to the operation cost was also analysed. TiO₂/Al electrode showed maximum colour removal efficiency of nearly 100% with 60 mA of current whereas, Fe and Al electrodes showed maximum efficiency of 98% and 75% at 120 mA respectively.

Keywords: electro coagulation; dye effluent; decolourisation; new TiO₂/Al electrode; sludge characterisation.

DOI: 10.1504/IJEWM.2025.147933

International Journal of Environment and Waste Management, 2025 Vol.37 No.4, pp.415 - 432

Received: 27 Sep 2022
Accepted: 21 Nov 2023
Published online: 11 Aug 2025 *

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Title: Comparison of high-performance TiO2-coated Al electrode (TiO2/Al) and conventional electrodes in removal of dyes using electrocoagulation reactor

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Title: Comparison of high-performance TiO₂-coated Al electrode (TiO₂/Al) and conventional electrodes in removal of dyes using electrocoagulation reactor