Assessment of PFAS fate, transport, and treatment inhibition associated with a simulated AFFF release within a WASTEWATER treatment plant

González, Dana; Thompson, Kyle A.; Quiñones, Oscar; Dickenson, Eric; Bott, Charles

doi:10.1016/j.chemosphere.2020.127900

Cited by 54 publications

(27 citation statements)

References 32 publications

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“…PFAS samples were collected in amber high‐density polyethylene bottles and shipped to the Southern Nevada Water Authority (SNWA), where a total of 27 PFAS were quantitated using methods described in Gonzalez et al (2021). Field blanks were collected on each sample date and analyzed using the same procedure (Table S1).…”

Section: Methodsmentioning

confidence: 99%

“…Details for system flow rates, hydraulic loading rates to each contactor, and EBCT within each contactor over the range of flow splits documented in this study can be found in Table 1. PFAS samples were collected in amber high-density polyethylene bottles and shipped to the Southern Nevada Water Authority (SNWA), where a total of 27 PFAS were quantitated using methods described in Gonzalez et al (2021). Field blanks were collected on each sample date and analyzed using the same procedure (Table S1).…”

Section: Sample Collection and Analysismentioning

confidence: 99%

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Granular activated carbon‐based treatment and mobility of per‐ and polyfluoroalkyl substances in potable reuse for aquifer recharge

et al. 2021

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Hampton Roads Sanitation District recently initiated an indirect potable reuse project to recharge the Potomac Aquifer in southeastern Virginia, USA. Source control and granular activated carbon (GAC) treatment are employed to minimize per-and polyfluoroalkyl substances (PFAS) content in this water. Final purified water maintained low long-chain perfluoroalkyl acids (PFAAs; <8 ppt sum of PFOA, PFNA, PFDA, PFHxS, PFOS) and moderately low short-chain PFAAs (<118 ppt of sum PFBA, PFPeA, PFHxA, PFHpA, PFBS). High mobility of low concentrations of five PFAS (PFBS, PFPeA, PFHxA, PFHpA, PFOA) in the Potomac Aquifer was observed. Despite low concentrations relative to current guidelines, PFAS breakthrough and mobility support strict source control and the use of surrogates like total organic carbon to guide GAC operation at the installation.

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Section: Methodsmentioning

confidence: 99%

Section: Sample Collection and Analysismentioning

confidence: 99%

Granular activated carbon‐based treatment and mobility of per‐ and polyfluoroalkyl substances in potable reuse for aquifer recharge

et al. 2021

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“…Biological treatment is another method that has been used in an in situ hybrid treatment system. Although environmentally friendly, biological treatment is not solely sufficient for removal of PFAS from the water (Gonzalez et al 2020). However, as a subdivision of in situ treatments,…”

Section: In Situ Hybrid Treatmentsmentioning

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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“…However, mineralization of PFASs by biodegradation is challenging. Gonzalez et al (2021) determined the biodegradation of aqueous film forming foam (AFFF)-associated PFASs in the sequencing batch reactor system and proposed the biotransformation pathway as (a) degradation of precursor PFAS compounds degraded to 6:2 fluorotelomer sulfonate (FTS) and (b) slow degradation of 6:2 FTS to intermediates and terminal, short-chain perfluorocarboxylic acid products (perfluorobutanoic acid [PFBA], perfluoropentanoic acid [PFPeA], perfluorohexanoic acid [PFHxA], and perfluoroheptanoic acid [PFHpA]). The generation of these intermediates could contribute to the increase in PFAS concentration in water and wastewater.…”

Section: Poly-and Perfluoroalkyl Substancesmentioning

confidence: 99%

Biofiltration for treatment of recent emerging contaminants in water: Current and future perspectives

Thuptimdang

Siripattanakul‐Ratpukdi

Ratpukdi

et al. 2020

Water Environment Research

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This review article discusses the current state of knowledge on water treatment and reuse by biofiltration systems focusing on biologically enhanced activated carbon (BAC) process. First, the applications of BAC in water treatment systems are overviewed, and then, the mechanisms for both biofilm formation and contaminant treatment are discussed along with the operational parameters influencing the performance of BAC process. Since contaminant removal by BAC is governed by adsorption and biodegradation, both processes are reviewed in relation to the treatment mechanisms. Information on removal of recent emerging contaminants including nitrogenous and unregulated disinfection by-products (DBPs) and their precursors, poly-and perfluorofluoroalkyl substances, nanoparticles, and plasticizers and microplastics by BAC is given along with suggestions for treatment improvements and future research. The uniqueness of this review includes insights on relevant biofilm aspects and the coverage on the abilities of BAC for treatment of recent and less common emerging contaminants especially unregulated DBPs and their precursors, nanoparticles, and plasticizers and microplastics. For future BAC studies, recommendations are proposed on exploring the biofilm development on media and recent emerging contaminants as co-contaminants, as well as developing novel supporting materials such as biochar. © 2020 Water Environment Federation • Practitioner points• The amount and the physiology and physical structure of biofilm affect the treatment efficiency of biological activated carbon. • Biological activated carbon is capable of removing a majority of nitrogenous and unregulated disinfection by-products. • Whether and how biological activated carbon is impacted by and/or can remove nanoparticles, and plasticizers and microplastics remain largely unknown. • Future work on biological activated carbon should focus on biofilm evolution and control, and novel support materials.

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Assessment of PFAS fate, transport, and treatment inhibition associated with a simulated AFFF release within a WASTEWATER treatment plant

Cited by 54 publications

References 32 publications

Granular activated carbon‐based treatment and mobility of per‐ and polyfluoroalkyl substances in potable reuse for aquifer recharge

Granular activated carbon‐based treatment and mobility of per‐ and polyfluoroalkyl substances in potable reuse for aquifer recharge

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

Biofiltration for treatment of recent emerging contaminants in water: Current and future perspectives

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