Remediation of water from per-/poly-fluoroalkyl substances (PFAS) – Challenges and perspectives

Garg, Shafali; Wang, Jingshi; Kumar, Pankaj; Mishra, Vandana; Arafat, Hassan A.; Sharma, Raghav; Dumée, Ludovic F.

doi:10.1016/j.jece.2021.105784

Cited by 63 publications

(26 citation statements)

References 206 publications

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“…In the last 20 years, various treatment methods for PFAS remediation have been tested including adsorption (Lin et al 2015a;Milinovic et al 2015;Zhang et al 2021), oxidation (Niu et al 2016;Gomez-Ruiz et al 2017), filtration (Niu et al 2016), thermal (Gu et al 2016(Gu et al , 2020, and biological treatments (Vierke et al 2012;Garg et al 2021). Many of these technologies suffer from the need for substantial energy and chemical usage, costly operating conditions, and immobile treatment facilities (Stanifer et al 2018;Sunderland et al 2019).…”

Section: Hybrid Treatment Of Per-and Polyfluoroalkyl Substancesmentioning

confidence: 99%

Chemistry, abundance, detection and treatment of per- and polyfluoroalkyl substances in water: a review

et al. 2021

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Per-and polyfluoroalkyl substances (PFAS) encompass a wide range of compounds containing carbon-fluorine bonds. Due the strength of this bond and the high electronegativity of fluorine atoms, PFAS display stability, wettability and other characteristics that are unique for industrial applications and products. However, PFAS induce adverse effects on the environment and human health. Here we review the chemistry, synthesis, properties, analysis, occurrence in water, filtration, removal and oxydation of PFAS. We highlight emerging hybrid treatments to remove PFAS from water.

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Section: Hybrid Treatment Of Per-and Polyfluoroalkyl Substancesmentioning

confidence: 99%

Chemistry, abundance, detection and treatment of per- and polyfluoroalkyl substances in water: a review

et al. 2021

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“…Multiple reviews in the literature detail the various strengths and weaknesses of treatment technologies for per-and polyfluoroalkyl substance (PFAS)-impacted matrices, and are either a general assessment of PFAS-relevant treatment technologies (Anderson et al, 2021;Garg et al, 2021;Mahinroosta & Senevirathna, 2020;Merino et al, 2016;Riegel & Sacher, 2020;Ross et al, 2019Ross et al, , 2018Wanninayake, 2021) or a focus on a particular mechanism, such as adsorption (Boyer et al, 2021;Dixit et al, 2021;Gagliano et al, 2020;Uriakhil et al, 2021;Zhang D. Q. et al, 2019) or various forms of destruction (Cui et al, 2020;Horst et al, 2020;Nzeribe et al, 2019; U.S. Environmental Protection Agency, USEPA, 2020a; Winchell et al, 2020;. Independent of the purpose of the review, a similar conclusion is drawn: an appropriate treatment strategy for PFAS-impacted waste includes multiple treatment technologies in series to concentrate PFAS into the smallest possible volume for energy-intensive destruction.…”

Section: Introductionmentioning

confidence: 99%

Validation of supercritical water oxidation to destroy perfluoroalkyl acids

McDonough

Kirby

Bellona

et al. 2022

Remediation Journal

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Some of the same unique physical and chemical properties that make per‐ and polyfluoroalkyl substances (PFAS) desirable for a wide range of commercial applications render them recalcitrant to many liquid treatment technologies. As developments in PFAS‐related toxicological studies increasingly suggest potential adverse human health effects, our industry has made great progress in the past several years on concentrating PFAS into small volume waste streams via adsorption and separation mechanisms. Coupled with residual PFAS‐containing commercial products that are being phased out, management of these concentrated waste streams presents an urgent need for the development and validation of destructive treatment technologies. Here, we field‐validate supercritical water oxidation to treat a concentrated waste stream of 12 perfluoroalkyl acids (PFAAs) with liquid and gaseous analysis, adhering to the recent Other Test Method 45 for stack emission sampling from the United States Environmental Protection Agency (USEPA) and USEPA Method 537.1, with quality control and quality assurance protocols from the Department of Defense/Department of Energy Quality Systems Manual 5.3. Results generated suggest greater than 99.999% destruction and removal efficiency of these 12 PFAAs after two ∼120‐min continuous flow trials, with an overall defluorination percentage of approximately 62.6%.

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“…9 Thus far, the dominant PFAS remediation strategy is PFAS capture. [10][11][12][13][14] The major drawback of these technologies is the generation of PFAS contaminated media, which requires further treatment for decontamination or long term storage. These ancillary waste streams could further be released into the environment and cause secondary PFAS contamination.…”

Section: Introductionmentioning

confidence: 99%

Destruction of per/poly-fluorinated alkyl substances by magnetite nanoparticle-catalyzed UV-Fenton reaction

Schlesinger

McDermott

et al. 2022

Environ. Sci.: Water Res. Technol.

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Remediation of water from per-/poly-fluoroalkyl substances (PFAS) – Challenges and perspectives

Cited by 63 publications

References 206 publications

Chemistry, abundance, detection and treatment of per- and polyfluoroalkyl substances in water: a review

Chemistry, abundance, detection and treatment of per- and polyfluoroalkyl substances in water: a review

Validation of supercritical water oxidation to destroy perfluoroalkyl acids

Destruction of per/poly-fluorinated alkyl substances by magnetite nanoparticle-catalyzed UV-Fenton reaction

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