Properties and Mechanism of Fe–Cu–AC Microelectrolysis for Treatment of Typical Dye Wastewater
Publication: Journal of Environmental Engineering
Volume 149, Issue 12
Abstract
The degradation of typical dye wastewater has always been a continuous concern in wastewater treatment. Microelectrolysis is a technology that offers the advantages of being green and highly efficient in treating wastewater. However, traditional binary microelectrolysis has problems, such as low applicability and high dependence on acidic environments. This study prepared ternary microelectrolytic materials, optimized the key conditions of material preparation and wastewater treatment, explored the removal mechanism of ternary microelectrolytic materials for dye wastewater, and quantitatively analyzed the contribution of different removal paths in the removal process of dye. For chemical oxygen demand (COD), the removal contributions of adsorption, flocculation, , , and reduction were 22.23%, 20.35%, 15.43%, 6.62%, and 0.71%, respectively. For the chorma removal of vital red, the removal contributions of adsorption, flocculation, , , and reduction were 21.07%, 55.97%, 14.57%, 4.62%, and 0.91%, respectively. For the chorma removal of disperse blue, the removal contributions of adsorption, flocculation, , , and reduction were 7.81%, 72.36%, 11.52%, 6.10%, and 0.70%, respectively. Ternary microelectrolysis can achieve an ideal removal effect in a neutral treatment environment. The material structure, produced in the system, and pH regulation of effluent are crucial in the removal process of dye wastewater. Ternary microelectrolysis materials are superior to traditional binary microelectrolysis materials due to their double cathode characteristics, strong applicability, and ability to operate in a neutral treatment environment. This study can serve as guide for ternary microelectrolysis technology in the treatment of typical dye wastewater.
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Data Availability Statement
All data, models, and code generated or used during the study appear in the published article.
Acknowledgments
This work was supported by the State Key Laboratory of Eco-Hydraulics in Northwest Arid Region, Xi’an University of Technology, under (Grant No. 2020KFKT-11) and the Science and Technology Department of Shaanxi Province, China, under (Grant Nos. 2021JQ-670 and 2023-YBSF-531).
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Published In
Journal of Environmental Engineering
Volume 149 • Issue 12 • December 2023
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© 2023 American Society of Civil Engineers.
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Received: Apr 29, 2023
Accepted: Jul 27, 2023
Published online: Oct 13, 2023
Published in print: Dec 1, 2023
Discussion open until: Mar 13, 2024
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