Electrochemical technologies for per‐ and polyfluoroalkyl substances mitigation in drinking water and water treatment residuals
Electrochemical technologies for per‐ and polyfluoroalkyl substances mitigation in drinking water and water treatment residuals
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DOI：
10.1002/aws2.1249
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发表时间：
2021-09
期刊：
影响因子：
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通讯作者：
D. Ryan;Brooke K. Mayer;Claire K. Baldus;S. McBeath;Yin Wang;P. McNamara
中科院分区：
文献类型：
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作者：
D. Ryan;Brooke K. Mayer;Claire K. Baldus;S. McBeath;Yin Wang;P. McNamara
需要能够将全氟烷基和多氟烷基物质（PFAS）转化为无机产品（例如，CO2，F−），其毒性低于母体PFAS化合物。电化学处理过程的研究，如电凝聚和电氧化，已经证明了概念验证PFAS的去除和破坏。然而，研究主要是在电化学有利的实验室基质中进行的（例如，高初始PFAS浓度[μg/L-mg/L]、高电导率和不存在氧化剂清除剂）。电化学处理也是用于处理来自非破坏性技术（例如，离子交换、纳米过滤和反渗透）。未来的电化学PFAS处理研究应侧重于环境相关的PFAS浓度（即，ng/L）、基质电导率、天然有机物影响、短链PFAS去除、转化产物分析和系统级分析以进行成本评估。
Water treatment technologies are needed that can convert per‐ and polyfluoroalkyl substances (PFAS) into inorganic products (e.g., CO2, F−) that are less toxic than parent PFAS compounds. Research on electrochemical treatment processes such as electrocoagulation and electrooxidation has demonstrated proof‐of‐concept PFAS removal and destruction. However, research has primarily been conducted in laboratory matrices that are electrochemically favorable (e.g., high initial PFAS concentration [μg/L–mg/L], high conductivity, and absence of oxidant scavengers). Electrochemical treatment is also a promising technology for treating PFAS in water treatment residuals from nondestructive technologies (e.g., ion exchange, nanofiltration, and reverse osmosis). Future electrochemical PFAS treatment research should focus on environmentally relevant PFAS concentrations (i.e., ng/L), matrix conductivity, natural organic matter impacts, short‐chain PFAS removal, transformation products analysis, and systems‐level analysis for cost evaluation.