Adopting the addition of iron waste as a source for iron (II) ion in Electro-Fenton system for the removal of triple dyes
DOI:
https://doi.org/10.31699/IJCPE.2026.1.13Keywords:
Triple Dyes; Electro-Fenton; Iron Filings; Response Surface Methodology; Ni-Foam; Carbon Fiber FeltAbstract
Use of electrodes that provide a high surface area for reaction, such as Nickel foam and Carbon Fiber Felt, has proven highly efficient in treating wastewater. In this study, a mixture of dyes (Eosin Y, Methylene Blue, and Methylene Violet) was treated using Ni foam as a cathode and carbon fiber felt as an anode in the Electro-Fenton process, relying on iron waste, such as iron filings, as the catalyst source. The analysis characterization of electrodes and iron filings was determined by Energy dispersive X-Ray (EDX) and Scanning electron microscopy (SEM) tests. The results showed high efficiency in decomposing the dye mixture. The highest Re % 96.4591 which attained after accomplishing the experiments based on Response Surface Method (RSM) was recorded at 75 mA of current, 0.25 g/L of iron filings concentration, and 0.015 M of electrolyte concentration. The highest specific energy expenditure for this process was 6.892939 kWh/kg of dyes. In addition to the process's energy efficiency, using iron scrap as a cheap alternative to expensive iron salts is a cost-effective and environmentally friendly approach.
Received on 09/02/2026
Received in Revised Form on 14/03/2026
Accepted on 14/03/2026
Published on 30/03/2026
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