Thermal degradation of fluorotelomer treated articles and related materials

Yamada, Takahiro; Taylor, Philip H.; Buck, Robert C.; Kaiser, Mary A.; Giraud, Robert

doi:10.1016/j.chemosphere.2005.03.025

Cited by 96 publications

(60 citation statements)

References 19 publications

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“…A number of fluorochemicals have been tested for incinerability. A fluorotelomer based acrylic polymer was found to be more than 99% destroyed at 950°C as a free polymer and at 700°C when coated on a fabric [113]. Carbon tetrafluoride, CF 4 , one of the most recalcitrant fluorochemicals, will be more than 99% destroyed under incinerator conditions [81].…”

Section: Incinerationmentioning

confidence: 99%

“…The thermolysis of fluorochemicals has been documented experimentally under more controlled conditions to determine individual reaction kinetics and mechanisms [230][231][232][233][234][235][236][237][238][239][240][241], and under more industrial conditions to test incinerability [81,111,113] or other thermal degradation processes [242]. A comprehensive experimental and theoretical database of C 1 and C 2 fluorochemical pyrolytic and combustion mechanisms, thermochemistry, and kinetics has been reported [243].…”

Section: Pfox Thermolysismentioning

confidence: 99%

“…It suggests microbial transformation [7,8,111] of fluorosulfonamides such as FOSE and FOSA to PFOS [69][70][71][72]110], fluorotelomer alcohols to PFOA [112], or release of residual PFOX from disposed products [110]. Incineration [113] of sludge containing PFCs [82,111] is effective for the complete destruction of fluorochemicals and fluoropolymers. Tertiary water treatment technologies such as granular activated carbon (GAC) [6], ion-exchange [80], and reverse osmosis [114,115] have been shown to be effective in removing PFOS from water.…”

Section: Tertiary Water Treatmentmentioning

confidence: 99%

See 2 more Smart Citations

Treatment technologies for aqueous perfluorooctanesulfonate (PFOS) and perfluorooctanoate (PFOA)

Vecitis

Park

Cheng

et al. 2009

Front. Environ. Sci. Eng. China

377

256

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Fluorochemicals (FCs) are oxidatively recalcitrant, environmentally persistent, and resistant to most conventional treatment technologies. FCs have unique physiochemical properties derived from fluorine which is the most electronegative element. Perfluorooctanesulfonate (PFOS), and perfluorooctanoate (PFOA) have been detected globally in the hydrosphere, atmosphere and biosphere. Reducing treatment technologies such as reverses osmosis, nano-filtration and activated carbon can remove FCs from water. However, incineration of the concentrated waste is required for complete FC destruction. Recently, a number of alternative technologies for FC decomposition have been reported. The FC degradation technologies span a wide range of chemical processes including direct photolysis, photocatalytic oxidation, photochemical oxidation, photochemical reduction, thermally-induced reduction, and sonochemical pyrolysis. This paper reviews these FC degradation technologies in terms of kinetics, mechanism, energetic cost, and applicability. The optimal PFOS/PFOA treatment method is strongly dependent upon the FC concentration, background organic and metal concentration, and available degradation time.

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Section: Incinerationmentioning

confidence: 99%

Section: Pfox Thermolysismentioning

confidence: 99%

Section: Tertiary Water Treatmentmentioning

confidence: 99%

See 1 more Smart Citation

Treatment technologies for aqueous perfluorooctanesulfonate (PFOS) and perfluorooctanoate (PFOA)

Vecitis

Park

Cheng

et al. 2009

Front. Environ. Sci. Eng. China

377

256

View full text Add to dashboard Cite

show abstract

“…Commercially, thermal destruction for PFAS‐impacted water matrices is offered through incineration, which is defined as 99% destruction at 2s of the gas‐phase residence time (Taylor et al ). Theoretically, reported temperatures in studies that claim to address PFOA and PFOS available in the literature (approximately 300 to 350 °C [Krusic and Roe ; Krusic et al ] and 600 to 900 °C [Yamada and Taylor ], respectively) are achievable under commercial incineration conditions. Based on our established definition of destruction (i.e., mineralization), these temperatures are likely insufficient to fully defluorinated PFAS.…”

Section: Considerations For Available Pfas‐relevant Destruction Technmentioning

confidence: 99%

Understanding and Managing the Potential By‐Products of PFAS Destruction

Horst

McDonough

Ross

et al. 2020

Groundwater Monitoring Rem

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“…To minimize PFOS contamination in the aquatic environment, effective removal techniques are needed. There are several available methods, such as photolysis and photocatalysis, advanced oxidation, thermal degradation, sonochemical degradation, and membrane filtration . Adsorption has been widely used for the treatment of industrial wastewater and this technique is effective as well as economical for the treatment of large amounts of wastewater.…”

Section: Introductionmentioning

confidence: 99%

Batch and column adsorption of perfluorooctane sulfonate on anion exchange resins and granular activated carbon

Chularueangaksorn

Tanaka

Fujii

et al. 2013

J of Applied Polymer Sci

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Perfluorooctane sulfonate (PFOS) has been detected widely in the natural water matrix and is persistent, bioaccumulative, and toxic. To prevent the adverse effects of PFOS contamination on human health and the environment, effective removal techniques are needed. Adsorption is considered an effective technique for PFOS removal. In this study, five anion exchange resins and granular activated carbon (GAC) were examined to evaluate their performance for the removal of PFOS in both batch and column experiments. Experimental adsorption data for all of the adsorbents exhibited a high correlation with the Freundlich isotherm (R 2 5 0.95 -0.98). Most of the anion exchange resins demonstrated a higher adsorption capacity than the GAC. PFA300 had the highest adsorption capacity (455 mg/g). Continuous adsorption of PFOS was performed in column experiments using the same adsorbents that had been used in the batch experiments. The experimental breakthrough curves were set at C/C 0 5 0.1. PFA300 showed the longest operation time before reaching the breakthrough point. The Yoon and Nelson model was used to predict the half-saturation time of the anion exchange resins. Moreover, the anion exchange resins exhibited high recovery of PFOS by an organic solvent. Continuous PFOS adsorption on a column can be achieved using anion exchange resins for water/wastewater treatment.

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Thermal degradation of fluorotelomer treated articles and related materials

Cited by 96 publications

References 19 publications

Treatment technologies for aqueous perfluorooctanesulfonate (PFOS) and perfluorooctanoate (PFOA)

Treatment technologies for aqueous perfluorooctanesulfonate (PFOS) and perfluorooctanoate (PFOA)

Understanding and Managing the Potential By‐Products of PFAS Destruction

Batch and column adsorption of perfluorooctane sulfonate on anion exchange resins and granular activated carbon

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