Reuse of waste welding powder in Fenton-like process for RO16 dye removal and Cr(VI) reduction

Hande Bulut, Ozan Eskikaya, Pinar Belibagli, Zelal Işik, Hudaverdi Arslan and Nadir Dizge ()
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Hande Bulut: Mersin University
Ozan Eskikaya: Tarsus University
Pinar Belibagli: Tarsus University
Zelal Işik: Mersin University
Hudaverdi Arslan: Mersin University
Nadir Dizge: Mersin University

Environment, Development and Sustainability: A Multidisciplinary Approach to the Theory and Practice of Sustainable Development, 2024, vol. 26, issue 11, No 60, 28661 pages

Abstract: Abstract Waste minimization is one of the important issued nowadays. In this study, the usability of waste welding powders (WWPs) was investigated in the Fenton-like process for Cr(VI) and reactive orange 16 (RO16) dye removal from aqueous solution. Solution pH, amount of catalyst, amount of H2O2, initial pollutants concentrations, reaction time and temperature parameters were optimized. 100% RO16 dye removal efficiency was obtained at pH: 2, dye concentration: 100 mg/L, catalyst amount: 1 g/L, and H2O2 amount: 2.5 µL/L. Besides, 99.7% Cr(VI) removal efficiency was obtained at pH: 2, Cr(VI) concentration: 10 mg/L, catalyst amount: 0.25 g/L, and H2O2 amount: 2.5 µL/L. In addition, the characterization of WWP was also carried out by SEM, EDX, XRD, XRF, and zeta potential analyses. WWP can be considered to be a viable catalyst for both dye and Cr(VI) removal from aqueous solution. WWP’s effectiveness was also tested in real wastewater. As a result of the experiments with real wastewater, 100% removal efficiency was obtained both textile wastewater for 60 min and Cr(VI) containing wastewater for 45 min. These results have revealed that WWP is a promising catalyst for the treatment of real wastewater.

Keywords: Cr(VI) removal; RO16 dye removal; Fenton-like process; Waste welding powder (search for similar items in EconPapers)
Date: 2024
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DOI: 10.1007/s10668-023-03834-5

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