Decomposition of refractory organics in wastewater by electrocatalytic reduction: mechanism, challenges, and future perspectives

IF 8 2区工程技术 Q1 BIOTECHNOLOGY & APPLIED MICROBIOLOGY

Current Opinion in Chemical Engineering Pub Date : 2024-03-27 DOI:10.1016/j.coche.2024.101016

Murtaza Sayed , Chun Zhao , Emmanuel Mousset , Javed A Khan , Dionysios D Dionysiou

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Abstract

This review provides a brief overview of the electrocatalytic reduction of refractory organic contaminants in water. The electrocatalytic reduction mechanism and principle are thoroughly discussed. The role of various oxidants such as ozone, persulfate, permanganate, peracetic acid, and mixed oxidants on the electrocatalytic reduction of refractory organic contaminants was deeply explored. The impact of various operational parameters such as current density, initial concentration of oxidants, solution pH, and water matrices on the electrocatalytic degradation of refractory organic compounds has been investigated in detail. Moreover, the role of electrode materials and electrocatalytic reactor design in the electrocatalytic reduction of refractory organic contaminants in water was also discussed. Finally, the challenges and future perspectives were highlighted for the practical implementation of electrocatalytic reduction processes for water treatment.

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电催化还原法分解废水中的难分解有机物：机理、挑战和未来展望

本综述简要概述了电催化还原水中难溶有机污染物的过程。文中深入讨论了电催化还原机制和原理。深入探讨了臭氧、过硫酸盐、高锰酸盐、过乙酸和混合氧化剂等各种氧化剂对电催化还原难降解有机污染物的作用。详细研究了各种操作参数（如电流密度、氧化剂初始浓度、溶液 pH 值和水基质）对难降解有机化合物电催化降解的影响。此外，还讨论了电极材料和电催化反应器设计在电催化还原水中难降解有机污染物中的作用。最后，还强调了在实际应用电催化还原工艺进行水处理方面所面临的挑战和未来展望。

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来源期刊

Current Opinion in Chemical Engineering BIOTECHNOLOGY & APPLIED MICROBIOLOGYENGINE-ENGINEERING, CHEMICAL

CiteScore

12.80

自引率

3.00%

发文量

114

期刊介绍： Current Opinion in Chemical Engineering is devoted to bringing forth short and focused review articles written by experts on current advances in different areas of chemical engineering. Only invited review articles will be published. The goals of each review article in Current Opinion in Chemical Engineering are: 1. To acquaint the reader/researcher with the most important recent papers in the given topic. 2. To provide the reader with the views/opinions of the expert in each topic. The reviews are short (about 2500 words or 5-10 printed pages with figures) and serve as an invaluable source of information for researchers, teachers, professionals and students. The reviews also aim to stimulate exchange of ideas among experts. Themed sections: Each review will focus on particular aspects of one of the following themed sections of chemical engineering: 1. Nanotechnology 2. Energy and environmental engineering 3. Biotechnology and bioprocess engineering 4. Biological engineering (covering tissue engineering, regenerative medicine, drug delivery) 5. Separation engineering (covering membrane technologies, adsorbents, desalination, distillation etc.) 6. Materials engineering (covering biomaterials, inorganic especially ceramic materials, nanostructured materials). 7. Process systems engineering 8. Reaction engineering and catalysis.