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Analysis of per- and polyfluoroalkyl substances (PFAS) extraction from contaminated firefighting materials: Effects of cleaning agent, temperature, and chain-length dependencies
RISE Research Institutes of Sweden, Safety and Transport, Fire and Safety.ORCID iD: 0000-0001-9432-0264
RISE Research Institutes of Sweden, Materials and Production, Applied Mechanics.ORCID iD: 0009-0000-7350-1410
RISE Research Institutes of Sweden, Materials and Production, Applied Mechanics.ORCID iD: 0009-0005-6799-7794
RISE Research Institutes of Sweden, Materials and Production, Product Realisation Methodology.ORCID iD: 0000-0003-4592-5851
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2024 (English)In: Emerging Contaminants, ISSN 2405-6650, E-ISSN 2405-6642, Vol. 10, no 3, p. 100335-100335, article id 100335Article in journal (Refereed) Published
Abstract [en]

This investigation delves into the extraction dynamics of 22 per- and polyfluoroalkyl substances from PFAS contaminated firefighting materials. Two distinct test sets were executed: one contrasting a commercial product with water following an elaborate decontamination procedure, and the other assessing seven washing agents on materials from firefighting installations, with one agent examined at 22 °C and 50 °C. A general tendency for improved desorption at the higher temperature was observed. Furthermore, a discernible influence of the cleaning agent's pH on the extraction of specific PFAS species was observed, elucidating the role of chemical environment in the extraction process. PFAS rebound was studied for a period of up to 157 days, this unveiled a gradual escalation in PFAS22 levels, indicative of a protracted desorption mechanism. Intriguingly, PFAS with abbreviated carbon chains (C4–C6) exhibit superior desorption efficiency compared to their elongated congeners, suggesting a chain-length-dependent decontamination potential. A comparative scrutiny between a commercially available cleaning product, featuring multiple washing and flushing steps, and a water-only treatment regimen underscores the potential efficacy of the former. This exhaustive investigation furnishes nuanced insights into PFAS extraction complexities, offering a foundation for informed decontamination strategies

Place, publisher, year, edition, pages
2024. Vol. 10, no 3, p. 100335-100335, article id 100335
National Category
Chemical Sciences
Identifiers
URN: urn:nbn:se:ri:diva-72463DOI: 10.1016/j.emcon.2024.100335OAI: oai:DiVA.org:ri-72463DiVA, id: diva2:1848047
Funder
Swedish Defence Materiel AdministrationSwedish Armed Forces
Note

We express gratitude to the Swedish Fortifications Agency, the Swedish Defence Materiel Administration, and the Swedish Armed Forces for their financial support in the Testbed PFAS project

Available from: 2024-04-02 Created: 2024-04-02 Last updated: 2024-05-22Bibliographically approved

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Dahlbom, SixtenBjarnemark, FannyNguyen, BjörnPetronis, SarunasMallin, Tove

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