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Non-target and suspect screening strategies for electrodialytic soil remediation evaluation: Assessing changes in the molecular fingerprints and per- and polyfluoroalkyl substances (PFASs)

Sörengård, Mattias and Ahrens, Lutz and Alygizakis, Nikiforos A. and Jensen, Pernille Erland and Ferrero, Pablo Gago (2020). Non-target and suspect screening strategies for electrodialytic soil remediation evaluation: Assessing changes in the molecular fingerprints and per- and polyfluoroalkyl substances (PFASs). Journal of Environmental Chemical Engineering. 8 , 104437
[Journal article]

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Abstract

Contamination of soils with organic pollutants is an increasing global problem, so novel soil remediation techniques are urgently needed. One such technique is electrokinetic remediation, in which an electric field is applied over the soil to extract contaminants. Previous evaluations of the technique have been limited to a few specific compounds. In this study, we integrated the latest advances in high-resolution mass spectrometry (HRMS) to identify molecular fingerprints, and used the results to improve the mechanistic understanding necessary for successful remediation. A laboratory-scale 0.38 mA cm(-2) electrodialytic treatment was applied for 21 days to a contaminated soil from a firefighter training facility in Sweden. Non-target analysis allowed generic evaluation of changes in the soil organic fraction by tentatively determining the elemental composition of compounds present. The results showed that smaller oxygen-rich molecules were significantly transported to the anode by electromigration, while larger hydrogen-saturated molecules were transported to the cathode by electroosmotic flow. Wide suspect screening with >3000 per- and polyfluoroalkyl substances (PFASs) tentatively identified seven new PFASs in the test soil, including perfluoroheptanesulfonic acid (PFHpS), and PFASs with butoxy, ethoxy, ethanol, and ethylcyclohexanesulfonate functional groups.

Authors/Creators:Sörengård, Mattias and Ahrens, Lutz and Alygizakis, Nikiforos A. and Jensen, Pernille Erland and Ferrero, Pablo Gago
Title:Non-target and suspect screening strategies for electrodialytic soil remediation evaluation: Assessing changes in the molecular fingerprints and per- and polyfluoroalkyl substances (PFASs)
Series Name/Journal:Journal of Environmental Chemical Engineering
Year of publishing :2020
Volume:8
Article number:104437
Number of Pages:8
ISSN:2213-3437
Language:English
Publication Type:Journal article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Soil Science
(A) Swedish standard research categories 2011 > 1 Natural sciences > 105 Earth and Related Environmental Sciences > Environmental Sciences (social aspects to be 507)
Keywords:High resolution mass spectroscopy, Soil remediation, Non-target screening, Per- and polyfluoroalkyl substances, Per fluoroheptanesulfonic acid
URN:NBN:urn:nbn:se:slu:epsilon-p-107722
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-107722
Additional ID:
Type of IDID
DOI10.1016/j.jece.2020.104437
Web of Science (WoS)000601318000002
ID Code:21437
Faculty:NJ - Fakulteten för naturresurser och jordbruksvetenskap
Department:(NL, NJ) > Dept. of Aquatic Sciences and Assessment
Deposited By: SLUpub Connector
Deposited On:21 Jan 2021 11:43
Metadata Last Modified:21 Jan 2021 11:51

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