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Thermal Treatment Results

Reference: Barranco, F., Caprio, P., and Hay, G. (2020) Evaluation of Indirect Thermal Desorption Coupled with Thermal Oxidation Technology to Treat Solid PFAS-Impacted Investigation-Derived Waste - Strategic Environmental Research and Development Program (SERDP)
Treatment Process: Indirect Thermal Desorption
Test Scale: Pilot
Matrix: Soil
Matrix Detail: Soil spiked with PFAS
Data Detail: Percent removal of 6 PFAS at 500 and 650 degrees C

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Open Condition	Treatment Temperature	Treatment Time	Time Units	Treatment Details
Open Condition	650	2	Hour
Open Condition	500	2	Hour

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Analyte	Condition	Effectiveness (%)	Effectiveness Measure	Initial Concentration	Additional Details
Total PFAS	500 °C \| 2 hour	<94%	Percent Removed
PFPeA	500 °C \| 2 hour	<99.8%	Percent Removed	=9235 µg/kg	Figure 4-1. Thermal Desorption Treatment Results of 6 PFAS-Spiked Soil (500oC)
PFOA	500 °C \| 2 hour	<99.8%	Percent Removed	7237.5 µg/kg	Figure 4-1. Thermal Desorption Treatment Results of 6 PFAS-Spiked Soil (500oC)
PFNA	500 °C \| 2 hour	<99.8%	Percent Removed	=8157.5 µg/kg	Figure 4-1. Thermal Desorption Treatment Results of 6 PFAS-Spiked Soil (500oC)
PFOS	500 °C \| 2 hour	<89%	Percent Removed	=7760 µg/kg	Figure 4-1. Thermal Desorption Treatment Results of 6 PFAS-Spiked Soil (500oC)
PFOA	500 °C \| 2 hour	<89%	Percent Removed	6670 µg/kg	Figure 4-1. Thermal Desorption Treatment Results of 6 PFAS-Spiked Soil (500oC)
PFNA	500 °C \| 2 hour	<89%	Percent Removed	=6217.5 µg/kg	Figure 4-1. Thermal Desorption Treatment Results of 6 PFAS-Spiked Soil (500oC)
PFPeA	650 °C \| 2 hour	<99%	Percent Removed	13912.5 µg/kg	Figure 4-2. Thermal Desorption Treatment Results of 6 PFAS-Spiked Soil (650oC)
PFOA	650 °C \| 2 hour	<99%	Percent Removed	13200 µg/kg	Figure 4-2. Thermal Desorption Treatment Results of 6 PFAS-Spiked Soil (650oC)
PFHxS	650 °C \| 2 hour	<99%	Percent Removed	13475 µg/kg	Figure 4-2. Thermal Desorption Treatment Results of 6 PFAS-Spiked Soil (650oC)
PFBS	650 °C \| 2 hour	<99%	Percent Removed	13037.5 µg/kg	Figure 4-2. Thermal Desorption Treatment Results of 6 PFAS-Spiked Soil (650oC)
PFNA	650 °C \| 2 hour	<99%	Percent Removed	15337.5 µg/kg	Figure 4-2. Thermal Desorption Treatment Results of 6 PFAS-Spiked Soil (650oC)
PFOS	650 °C \| 2 hour	<99%	Percent Removed	17200 µg/kg	Figure 4-2. Thermal Desorption Treatment Results of 6 PFAS-Spiked Soil (650oC)

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Condition

Thermal Treatment Results