Biodegradation of perfluorooctanesulfonate (PFOS) as an emerging contaminant
Abstract
Perfluorooctanesulfonate (PFOS) is a compound of global concern because of its persistence and bioaccumulation in the environment. Nevertheless, little is known of the potential for PFOS biodegradation, even though the importance of characterizing the function and activity of microbial populations detected in the environment has been discussed. This study focused on the biodegradation of PFOS by a specific microorganism. Through this study, we have identified the aerobic microorganism for the specific decomposition of PFOS from wastewater treatment sludge, as a well-known sink for environmental PFOS. This species was Pseudomonas aeruginosa strain HJ4 with a 99% similarity, a mesophilic rod type bacteria (30-37°C). A pH range of 7-9 was determined to be optimal for the growth of strain HJ4. In this study approximately 67% over a range of concentrations (1400-1800μgL(-)(1)) for PFOS was biologically decomposed by P. aeruginosa after 48h incubation. This result is reported here for the first time, which strongly pertains to the efficient biodegradation of PFOS. Therefore, our study is considered a major advancement in sustainable PFOS treatment.
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Kwon et al. (2014) reported a 67% reduction of PFOS after 48 h aerobic incubation with Pseudomonas aeruginosa HJ4 from WWTP sludge.
“Kwon et al. (2014) reported a 67 % reduction of PFOS after 48 h aerobic incubation with Pseudomonas aeruginosa HJ4 fromWWTP sludge.”
From A review of microbial degradation of per- and polyfluoroalkyl substances (PFAS): Biotransformation routes and enzymes (2023) · cites this paper as Kwon et al. (2014)
Up to 67% PFOS reduction occurred in 48 h, with only minor PFBS and PFHxS detected and no fluoride production.
“Up to 67 % PFOS reduction in 48 h. Only minor (4–26 ng/L) PFBS and PFHxS were detected, but no fluoride production”
From A review of microbial degradation of per- and polyfluoroalkyl substances (PFAS): Biotransformation routes and enzymes (2023) · cites this paper as Kwon et al., 2014
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References 20 · Cited by 231
- Authors
- Kwon, B. G., Lim, H.-J., Na, S.-H., Choi, B.-I., Shin, D.-S., & Chung, S.-Y.
- Affiliations
- Chonnam National University (KR)
- Changwon National University (KR)
- Corresponding author
- Kwon, Bum Gun
- Chung, Seon-Yong
- Venue
- Chemosphere
- Publisher
- Elsevier BV
- Published
- 2014-08
- Volume
- 109
- Pages
- 221-225
- ISSN
- 0045-6535 (ISSN-L)
- OpenAlex
- W2062961639
- Cited by
- 231
- References
- 20
- Citations by year
- 2026: 26 · 2025: 47 · 2024: 39 · 2023: 27 · 2022: 31 · 2021: 23 · 2020: 8 · 2019: 17 · 2018: 5 · 2017: 3 · 2016: 3 · 2015: 2
- FWCI
- 2.03
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Chemosphere (publishedVersion)
- PubMed (publishedVersion)
- Funders
- Ministry of Environment
- Topics
- Physical Sciences › Environmental Science › Environmental Chemistry › Per- and polyfluoroalkyl substances research
- Physical Sciences › Environmental Science › Environmental Chemistry › Environmental Chemistry and Analysis
- Physical Sciences › Environmental Science › Pollution › Microbial bioremediation and biosurfactants
- Keywords
- PFOS, Pseudomonas aeruginosa, sewage sludge, emerging contaminants, aerobic biodegradation, pH optimization, PFOS removal, persistent bioaccumulative toxic substances
- MeSH terms
- Biodegradation, Environmental, Environmental Pollutants, Fluorocarbons, Hydrogen-Ion Concentration, Pseudomonas aeruginosa, Sewage, Temperature, Alkanesulfonic Acids
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