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SMOULDERING COMBUSTION FOR THE MANAGEMENT OF PFAS-IMPACTED SOILS AT BROWNFIELDS REDEVELOPMENT SITES IN CANADA
Scholes, G., G. Grant, D. Major, J. Gerhard, A. Duchesne, J. Brown, K. Weber, and D. Patch.
RemTech 2019: Remediation Technologies Symposium, 16-18 October, Banff, 31 slides, 2019
Recent work demonstrated that granular activated carbon (GAC) can be used to support in situ Self-sustaining Treatment for Active Remediation (STAR) and ex situ STAR (STARx) smoldering combustion techniques to achieve temperatures that destroy PFAS when added to soils at ~40 to 60 g/kg. Post-treatment concentrations of PFAS in the remaining sand, soil, and ash were below the 0.05 µg/k detection limit. Initial emission analyses indicate that over 82% of the available fluorine was captured as HF with only small amounts of PFAS emitted which could be subsequently captured by GAC and treated. Results to date are promising, suggesting the technique may provide an effective remediation technique for PFAS-impacted soils. https://www.esaa.org/wp-content/uploads/2019/10/19-Scholes.pdf
RemTech 2019: Remediation Technologies Symposium, 16-18 October, Banff, 31 slides, 2019
Recent work demonstrated that granular activated carbon (GAC) can be used to support in situ Self-sustaining Treatment for Active Remediation (STAR) and ex situ STAR (STARx) smoldering combustion techniques to achieve temperatures that destroy PFAS when added to soils at ~40 to 60 g/kg. Post-treatment concentrations of PFAS in the remaining sand, soil, and ash were below the 0.05 µg/k detection limit. Initial emission analyses indicate that over 82% of the available fluorine was captured as HF with only small amounts of PFAS emitted which could be subsequently captured by GAC and treated. Results to date are promising, suggesting the technique may provide an effective remediation technique for PFAS-impacted soils. https://www.esaa.org/wp-content/uploads/2019/10/19-Scholes.pdf
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