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Sustainable water treatment: Harnessing mining waste as catalysts for Sicomet green degradation

Lookup NU author(s): Dr Jie ZhangORCiD

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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND).


Abstract

This paper presents a novel circular economy approach to water remediation that focuses oncreating sustainable systems by utilizing mining waste from El-Ouenza, Tebessa, in the east ofAlgeria. Waste materials are employed as catalysts in Fenton and photo-Fenton processes. Twocases were studied: the conventional and the modified heterogeneous photo-Fenton at a pH of 3and under modified pH conditions for degrading Sicomet Green food dye ZS120. Catalysts werecharacterized through various analyses. Catalyst performance and dye degradation were examinedfor raw and calcined waste at 500 ◦C. Parameters like catalyst amount, sodium sulfiteconcentration, oxalic acid, and pH were optimized for both systems, with and without ligand. Thefirst system achieved 91.5 % mineralization using 0.15 g L􀀀 1 catalyst, pH of 3, and 0.45 mMNa2SO3 in 90 min under sunlight. The second reached 78.5 % efficiency with variable conditions.Kinetic models demonstrated a first-order model for both photo-Fenton degradation and mineralizationunder sunlight. These findings guide eco-friendly dye degradation via mining wastebasedcatalysts in photo-Fenton systems, supporting sustainable wastewater treatment.


Publication metadata

Author(s): Kebir M, Tahraoui H, Benramdane IK, Nasrallah N, Toumi S, Zhang J, Amrane A

Publication type: Article

Publication status: Published

Journal: Water Resources and Industry

Year: 2024

Volume: 32

Print publication date: 01/12/2024

Online publication date: 27/09/2024

Acceptance date: 26/09/2024

Date deposited: 17/10/2024

ISSN (electronic): 2212-3717

Publisher: Elsevier

URL: https://doi.org/10.1016/j.wri.2024.100269

DOI: 10.1016/j.wri.2024.100269

Data Access Statement: Data will be made available on request.


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Funding

Funder referenceFunder name
Directorate General for Scientific Research and Technological Development of Algeria
Ministry of Higher Education and Scientific Research

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