Complete defluorination of per- and polyfluoroalkyl substances — dream or reality?

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

Current Opinion in Chemical Engineering Pub Date : 2023-09-01 DOI:10.1016/j.coche.2023.100943

Jan-Max Arana Juve , Bo Wang , Michael S. Wong , Mohammed Ateia , Zongsu Wei

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引用次数: 1

Abstract

The consensus of removing per- and polyfluoroalkyl substances (PFAS) from the environment is widely recognized and enlightened by the near-zero standards released from the U.S. Environmental Protection Agency in 2023. The only way to achieve the goal of zero fluoro-pollution is to fully defluorinate or mineralize PFAS, but current technologies only partially defluorinate a limited number of PFAS, which can lead to the creation of potentially more toxic short-chain intermediates. Therefore, we discuss herein the need to broaden the scope of tested PFAS, summarize the state-of-the-art degradation technologies, and provide perspectives to achieve complete defluorination. Besides fundamental knowledge gaps in defluorination reactions, technological gaps in the aspects of water matrix effects, pilot tests, and cost analysis also limit the application and comparison of different treatment technologies. This work would shed light on further research to find solutions in the complete defluorination of PFAS.

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全氟和多氟烷基物质的完全去氟化——梦想还是现实?

从环境中去除全氟烷基和多氟烷基物质(PFAS)的共识得到了广泛认可，并受到美国环境保护署(epa)于2023年发布的近零标准的启发。实现零氟污染目标的唯一途径是完全去氟化或矿化全氟磺酸，但目前的技术只能部分去氟化有限数量的全氟磺酸，这可能导致产生潜在毒性更大的短链中间体。因此，我们在此讨论了扩大PFAS测试范围的必要性，总结了最先进的降解技术，并提供了实现完全除氟的前景。除除氟反应的基础知识差距外，水基质效应、中试和成本分析等方面的技术差距也限制了不同处理技术的应用和比较。这项工作将有助于进一步研究寻找PFAS完全去氟化的解决方案。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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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.