Removal of Poly- and Per-Fluorinated Compounds from Ion Exchange Regenerant Still Bottom Samples in a Plasma Reactor

Removal of Poly- and Per-Fluorinated Compounds from Ion Exchange Regenerant Still Bottom Samples in a Plasma Reactor

“High-concentration” and “low-concentration” bench-scale batch plasma reactors were used to effectively degrade per- and polyfluoroalkyl substances (PFAS) at a high concentration (∼100 mg/L) and a low concentration (99.9% in 2 h, and short-chain PFAAs (99% of the TOP present in SBs was removed durin...

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Veröffentlicht in:Environmental science & technology 2020-11, Vol.54 (21), p.13973-13980
Hauptverfasser: Singh, Raj Kamal, Multari, Nicholas, Nau-Hix, Chase, Woodard, Steven, Nickelsen, Michael, Mededovic Thagard, Selma, Holsen, Thomas M
Format: Artikel
Sprache:eng
Schlagworte:
Acids
Alkanesulfonic Acids
Cetyltrimethylammonium bromide
Detection limits
Environmental Monitoring
Fluorine
Fluorocarbons - analysis
Ion Exchange
Perfluoro compounds
Perfluoroalkyl & polyfluoroalkyl substances
Perfluorooctanoic acid
Plasma
Plasma - chemistry
Precursors
Reactors
Treatment and Resource Recovery
Water Pollutants, Chemical - analysis
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Zusammenfassung:“High-concentration” and “low-concentration” bench-scale batch plasma reactors were used to effectively degrade per- and polyfluoroalkyl substances (PFAS) at a high concentration (∼100 mg/L) and a low concentration (99.9% in 2 h, and short-chain PFAAs (99% of the TOP present in SBs was removed during the treatment. Fluorine recovery of 47 to 117% was obtained in six SB samples. Energy requirement (EE/O) for the treatment of PFOA and PFOS from SBs ranged from 380 to 830 kWh/m3.
ISSN:0013-936X
1520-5851
DOI:10.1021/acs.est.0c02158