Alcohols radicals can efficiently reduce recalcitrant perfluorooctanoic acid.
Alcohol
Alcohol radical
PFOA
Persulfate
Journal
Water research
ISSN: 1879-2448
Titre abrégé: Water Res
Pays: England
ID NLM: 0105072
Informations de publication
Date de publication:
15 Oct 2023
15 Oct 2023
Historique:
received:
16
06
2023
revised:
10
08
2023
accepted:
30
08
2023
medline:
23
10
2023
pubmed:
14
9
2023
entrez:
13
9
2023
Statut:
ppublish
Résumé
Alcohols are commonly used as eluents for the regeneration of per/poly-fluoroalkyl substances (PFASs) adsorbents, but their potential effects on the subsequent treatment of these eluates have not been fully explored. This work investigated the effect of alcohols on perfluorooctanoic acid (PFOA) degradation by persulfate (PS) based advanced oxidation processes. The results showed that ethanol significantly promoted PFOA degradation in thermal/PS system. Under anoxic conditions, 25.5±1.4% or 91.2±1.6% of PFOA was degraded within 48 h in the absence or presence of ethanol. Electron paramagnetic resonance (EPR) detection, free radical quenching experiments, and chemical probe studies clearly demonstrated that the sulfate radicals (SO
Identifiants
pubmed: 37703753
pii: S0043-1354(23)00997-1
doi: 10.1016/j.watres.2023.120557
pii:
doi:
Substances chimiques
perfluorooctanoic acid
947VD76D3L
Water Pollutants, Chemical
0
Fluorocarbons
0
Caprylates
0
Ethanol
3K9958V90M
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
120557Informations de copyright
Copyright © 2023 Elsevier Ltd. All rights reserved.
Déclaration de conflit d'intérêts
Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.