Iron-activated persulfate oxidation degrades aqueous Perfluorooctanoic acid (PFOA) at ambient temperature
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Final Accepted Manuscript
Affiliation
Arizona Laboratory for Emerging Contaminants, The University of ArizonaDepartment of Environmental Science, The University of Arizona
Issue Date
2021-10Keywords
Emerging contaminantsEnvironmental remediation
Ferric oxide
Mass spectrometry
Perfluorinated compounds
PFAS
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Elsevier BVCitation
Tran, T., Abrell, L., Brusseau, M. L., & Chorover, J. (2021). Iron-activated persulfate oxidation degrades aqueous Perfluorooctanoic acid (PFOA) at ambient temperature. Chemosphere, 130824.Journal
ChemosphereRights
© 2021 Elsevier Ltd. All rights reserved.Collection Information
This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.Abstract
Perfluorooctanoic acid (PFOA, C8HF15O2) is an industrial surfactant that is highly resistant to natural breakdown processes such as those mediated by heat, hydrolysis, photolysis, and biodegradation. Many efforts have been developed to breakdown PFOA to less harmful species due to its widespread human exposure and potential toxicity. However, these methods require high temperature or specialized equipment with serious disadvantages of high energy cost for long-term use. We investigated the effectiveness of PFOA degradation by ferrous iron-activated persulfate oxidation (IAPO) under various aqueous geochemical conditions. Approximately 64% of PFOA (initial concentration = 1.64 μmol L−1) was degraded after 4 h under illuminated anoxic conditions at ambient temperature. This degradation rate and magnitude support the potential use of IAPO as a novel inexpensive and environmentally friendly method to remediate PFOA in soil and groundwater. © 2021 Elsevier LtdNote
24 month embargo; available online 18 May 2021ISSN
0045-6535Version
Final accepted manuscriptSponsors
National Institute of Environmental Health Sciencesae974a485f413a2113503eed53cd6c53
10.1016/j.chemosphere.2021.130824