Cited by 148Per- and polyfluoroalkyl substances researchAdvanced oxidation water treatmentEnvironmental remediation with nanomaterials

Electrochemical oxidation processes for PFAS removal from contaminated water and wastewater: Fundamentals, gaps and opportunities towards practical implementation

Veciana, Mersabel, Bräunig, Jennifer, Farhat, Ali, Pype, Marie-Laure, Freguia, Stefano, Carvalho, Gilda, Keller, Jürg, Ledezma, Pablo·2022·Journal of Hazardous Materials

Abstract

Electrochemical oxidation (EO) is emerging as one of the most promising methods for the degradation of recalcitrant per- and poly-fluoroalkyl substances (PFASs) in water and wastewater, as these compounds cannot be effectively treated with conventional bio- or chemical approaches. This review examines the state of the art of EO for PFASs destruction, and comprehensively compares operating parameters and treatment performance indicators for both synthetic and real contaminated water and wastewater media. The evaluation shows the need to use environmentally-relevant media to properly quantify the effectiveness/efficiency of EO for PFASs treatment. Additionally, there is currently a lack of quantification of sorption losses, resulting in a likely over-estimation of process' efficiencies. Furthermore, the majority of experimental results to date indicate that short-chain PFASs are the most challenging and need to be prioritized as environmental regulations become more stringent. Finally, and with a perspective towards practical implementation, several operational strategies are proposed, including processes combining up-concentration followed by EO destruction.

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Crossref · 10.1016/j.jhazmat.2022.128886

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Authors
Veciana, M., Bräunig, J., Farhat, A., Pype, M.-L., Freguia, S., Carvalho, G., Keller, J., & Ledezma, P.
Affiliations
  • The University of Queensland (AU)
  • The University of Melbourne (AU)
Corresponding author
  • Veciana, Mersabel
  • Ledezma, Pablo
Venue
Journal of Hazardous Materials
Publisher
Elsevier BV
Published
2022-07
Volume
434
Pages
128886
ISSN
0304-3894 (ISSN-L)
OpenAlex
W4223628807
Cited by
148
References
139
Citations by year
2026: 42 · 2025: 50 · 2024: 29 · 2023: 21 · 2022: 6
FWCI
1.88
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Hazardous Materials (publishedVersion)
  • PubMed (publishedVersion)
Funders
Australian Research Council (SR180100027)
Topics
  • Physical Sciences › Environmental Science › Environmental Chemistry › Per- and polyfluoroalkyl substances research
  • Physical Sciences › Environmental Science › Water Science and Technology › Advanced oxidation water treatment
  • Physical Sciences › Engineering › Biomedical Engineering › Environmental remediation with nanomaterials
Keywords
electrochemical oxidation, per- and polyfluoroalkyl substances, PFAS removal, contaminated water treatment, wastewater treatment, recalcitrant pollutants, short-chain PFASs, treatment efficiency
MeSH terms
Fluorocarbons, Water, Water Pollutants, Chemical, Water Purification, Wastewater

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