Hassani Aydin, Malhotra Milan, Karim Ansaf V, Krishnan Sukanya, Nidheesh P V
Department of Materials Science and Nanotechnology Engineering, Faculty of Engineering, Near East University, 99138 Nicosia, TRNC, Mersin 10, Turkey.
Environmental Science and Engineering Department, Indian Institute of Technology, Bombay, India.
Environ Res. 2022 Apr 1;205:112463. doi: 10.1016/j.envres.2021.112463. Epub 2021 Nov 29.
The electrochemical advanced oxidation processes (EAOPs) have received significant attention among the many other water and wastewater treatment technologies. However, achieving a desirable removal effect with a single technique is frequently difficult. Therefore, the integration of ultrasound technique with other processes such as electrocoagulation, electro-Fenton, and electrooxidation is a critical way to achieve effective organic pollutants decomposition from wastewater. This review paper is focused on ultrasound-assisted electrochemical (US/electrochemical) processes, so-called sonoelectrochemical processes of various organic pollutants. Emphasis was given to recently published articles for discussing the results and trends in this research area. The use of ultrasound and integration with electrochemical processes has a synergistic impact owing to the physical and chemical consequences of cavitation, resulting in enhancing the mineralization of organic pollutants. Various types of sonoelectrochemical reactors (batch and continuous) employed in the US/electrochemical processes were reviewed. In addition, the strategies to avoid passivation, enhanced generation of reactive oxygen species, and mixing effect are reviewed. Finally, concluding remarks and future perspectives on this research topic are also explored and recommended.
在众多其他水和废水处理技术中，电化学高级氧化工艺（EAOPs）已受到广泛关注。然而，仅用单一技术实现理想的去除效果往往很困难。因此，将超声技术与电凝聚、电芬顿和电氧化等其他工艺相结合，是实现废水中有机污染物有效分解的关键途径。这篇综述论文聚焦于超声辅助电化学（US/电化学）工艺，即各种有机污染物的声电化学工艺。重点讨论了近期发表的文章，以探讨该研究领域的成果和趋势。由于空化的物理和化学效应，超声的使用及其与电化学工艺的结合具有协同作用，从而提高了有机污染物的矿化程度。综述了US/电化学工艺中使用的各种类型的声电化学反应器（间歇式和连续式）。此外，还综述了避免钝化、增强活性氧生成以及混合效果的策略。最后，还探讨并提出了关于这一研究主题的总结性评论和未来展望。
