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Scope Details

Reference
Hatton, J., Dasu, K., Richter, R., Fitzpatrick, T., and Higgins, C. (2019) Field Demonstration of Infrared Thermal Treatment of PFAS-impacted Soils from Subsurface Investigations - Strategic Environmental Research and Development Program (SERDP)
Treatment Process
Infrared Heating
Test Scale
Pilot
Matrix
Soil
Matrix Detail
Soil spiked with AFFF
Data Detail
Initial and time-series concentrations of 29 PFAS in matrix by 3 different analytical methods; time-series removal percent of PFOA, PFOS, and total PFAS by 3 different methods; concentration in off-gas, off-gas condensate, and on VGAC treating off-gas

Condition

Open ConditionTreatment Details
Open Condition 3508DayThe pilot test was conducted at 350°C for 8 days based on the bench-scale test results. Spiked with AFFF

Thermal Treatment Results

PFOA350 °C | 8 day 97.3% Percent Removed22.6 µg/kgSamples treated for 8 days- Native removal- High concentration
PFOS350 °C | 8 day 74% Percent Removed1800 µg/kgSamples treated for 8 days- Native removal- High concentration
Total PFAS350 °C | 8 day =73% Percent Removed=2244 µg/kgSamples treated for 8 days- Native removal- High concentration
PFOA350 °C | 8 day >98.1% Percent Removed81.3 µg/kgSamples treated for 8 days- TOPA removal- High concentration
PFOS350 °C | 8 day 68.6% Percent Removed1410 µg/kgSamples treated for 8 days- TOPA removal- High concentration
Total PFAS350 °C | 8 day =78.2% Percent Removed=2582 µg/kgSamples treated for 8 days- TOPA removal- High concentration
PFOA350 °C | 8 day >76% Percent Removed30.04 µg/kgSamples treated for 8 days- CSM removal- High concentration
PFOS350 °C | 8 day 74.6% Percent Removed3227 µg/kgSamples treated for 8 days- CSM removal- High concentration
Total PFAS350 °C | 8 day =73.7% Percent Removed=4351 µg/kgSamples treated for 8 days- CSM removal- High concentration
PFBA350 °C | 8 day 3.83% Percent Remaining0.781 µg/kgSamples treated for 8 days; SGS treatment- High Conc- Treated with AFFF
PFPeA350 °C | 8 day =3.83% Percent Remaining=0.781 µg/kgSamples treated for 8 days; SGS treatment- High Conc- Treated with AFFF
PFHxA350 °C | 8 day 35.7% Percent Remaining0.999 µg/kgSamples treated for 8 days; SGS treatment- High Conc- Treated with AFFF
PFHpA350 °C | 8 day 5.34% Percent Remaining0.17 µg/kgSamples treated for 8 days; SGS treatment- High Conc- Treated with AFFF
PFHpA350 °C | 8 day 5.34% Percent Remaining0.17 µg/kgSamples treated for 8 days; SGS treatment- High Conc- Treated with AFFF
PFNA350 °C | 8 day 1.45% Percent Remaining0.145 µg/kgSamples treated for 8 days; SGS treatment- High Conc- Treated with AFFF
PFDA350 °C | 8 day 0.184% Percent Remaining0.145 µg/kgSamples treated for 8 days; SGS treatment- High Conc- Treated with AFFF
PFUnA350 °C | 8 day =0.076% Percent Remaining=0.145 µg/kgSamples treated for 8 days; SGS treatment- High Conc- Treated with AFFF
PFDoA350 °C | 8 day 0.145% Percent Remaining0.145 µg/kgSamples treated for 8 days; SGS treatment- High Conc- Treated with AFFF
PFTrDA350 °C | 8 day =0.145% Percent Remaining=0.145 µg/kgSamples treated for 8 days; SGS treatment- High Conc- Treated with AFFF
PFTeDA350 °C | 8 day =0.145% Percent Remaining=0.145 µg/kgSamples treated for 8 days; SGS treatment- High Conc- Treated with AFFF
PFBS350 °C | 8 day 15.9% Percent Remaining4.69 µg/kgSamples treated for 8 days; SGS treatment- High Conc- Treated with AFFF
PFPeS350 °C | 8 day =22.7% Percent Remaining=5.3 µg/kgSamples treated for 8 days; SGS treatment- High Conc- Treated with AFFF
PFHxS350 °C | 8 day 221% Percent Remaining56.4 µg/kgSamples treated for 8 days; SGS treatment- High Conc- Treated with AFFF
PFHpS350 °C | 8 day 57.9% Percent Remaining7.39 µg/kgSamples treated for 8 days; SGS treatment- High Conc- Treated with AFFF
PFNS350 °C | 8 day 2.07% Percent Remaining0.262 µg/kgSamples treated for 8 days; SGS treatment- High Conc- Treated with AFFF
PFDS350 °C | 8 day 1.23% Percent Remaining0.204 µg/kgSamples treated for 8 days; SGS treatment- High Conc- Treated with AFFF
PFDoS350 °C | 8 day 0.421% Percent Remaining0.136 µg/kgSamples treated for 8 days; SGS treatment- High Conc- Treated with AFFF
FtS 4:2350 °C | 8 day 0.421% Percent Remaining0.136 µg/kgSamples treated for 8 days; SGS treatment- High Conc- Treated with AFFF
FtS 6:2350 °C | 8 day 39.7% Percent Remaining4.37 µg/kgSamples treated for 8 days; SGS treatment- High Conc- Treated with AFFF
FtS 8:2350 °C | 8 day 3.53% Percent Remaining2.07 µg/kgSamples treated for 8 days; SGS treatment- High Conc- Treated with AFFF
PFOSA350 °C | 8 day 0.985% Percent Remaining0.145 µg/kgSamples treated for 8 days; SGS treatment- High Conc- Treated with AFFF
MeFOSA350 °C | 8 day 0.163% Percent Remaining0.163 µg/kgSamples treated for 8 days; SGS treatment- High Conc- Treated with AFFF
Et-FOSA350 °C | 8 day 0.362% Percent Remaining0.362 µg/kgSamples treated for 8 days; SGS treatment- High Conc- Treated with AFFF
N-MeFOSAA350 °C | 8 day 0.145% Percent Remaining0.145 µg/kgSamples treated for 8 days; SGS treatment- High Conc- Treated with AFFF
N-EtFOSAA350 °C | 8 day 0.097% Percent Remaining0.145 µg/kgSamples treated for 8 days; SGS treatment- High Conc- Treated with AFFF
N-MeFOSE350 °C | 8 day 1.47% Percent Remaining1.47 µg/kgSamples treated for 8 days; SGS treatment- High Conc- Treated with AFFF
Et-FOSE350 °C | 8 day 1.11% Percent Remaining1.11 µg/kgSamples treated for 8 days; SGS treatment- High Conc- Treated with AFFF
PFHxS350 °C | 8 day 689% Percent Remaining56.4 µg/kgSamples treated for 8 days; CSM treatment- High Conc- Treated with AFFF
PFHpS350 °C | 8 day 68.7% Percent Remaining8.5 µg/kgSamples treated for 8 days; CSM treatment- High Conc- Treated with AFFF
PFPeS350 °C | 8 day =107% Percent Remaining=9.68 µg/kgSamples treated for 8 days; CSM treatment- High Conc- Treated with AFFF
PFBS350 °C | 8 day 56.7% Percent Remaining6.95 µg/kgSamples treated for 8 days; CSM treatment- High Conc- Treated with AFFF
FtS 6:2350 °C | 8 day 30.2% Percent Remaining8.94 µg/kgSamples treated for 8 days; CSM treatment- High Conc- Treated with AFFF
FtS 8:2350 °C | 8 day <240% Percent Remaining<240 µg/kgSamples treated for 8 days; CSM treatment- High Conc- Treated with AFFF
PFHxA350 °C | 8 day 70.1% Percent Remaining3.12 µg/kgSamples treated for 8 days; CSM treatment- High Conc- Treated with AFFF
PFBA350 °C | 8 day 14.5% Percent Remaining12.6 µg/kgSamples treated for 8 days; CSM treatment- High Conc- Treated with AFFF
PFPeA350 °C | 8 day <1200% Percent Remaining<1200 µg/kgSamples treated for 8 days; CSM treatment- High Conc- Treated with AFFF
Et-FOSA350 °C | 8 day <60% Percent Remaining<60 µg/kgSamples treated for 8 days; CSM treatment- High Conc- Treated with AFFF
PFNS350 °C | 8 day 27% Percent Remaining1.88 µg/kgSamples treated for 8 days; CSM treatment- High Conc- Treated with AFFF
PFDS350 °C | 8 day 9.59% Percent Remaining0.557 µg/kgSamples treated for 8 days; CSM treatment- High Conc- Treated with AFFF
PFHpA350 °C | 8 day 12.3% Percent Remaining<2400 µg/kgSamples treated for 8 days; CSM treatment- High Conc- Treated with AFFF
MeFOSA350 °C | 8 day <1200% Percent Remaining<1200 µg/kgSamples treated for 8 days; CSM treatment- High Conc- Treated with AFFF
N-EtFOSAA350 °C | 8 day <120% Percent Remaining<120 µg/kgSamples treated for 8 days; CSM treatment- High Conc- Treated with AFFF
N-MeFOSAA350 °C | 8 day <120% Percent Remaining<120 µg/kgSamples treated for 8 days; CSM treatment- High Conc- Treated with AFFF
PFOSA350 °C | 8 day 1.78% Percent Remaining<2400 µg/kgSamples treated for 8 days; CSM treatment- High Conc- Treated with AFFF
PFTeDA350 °C | 8 day <120% Percent Remaining<120 µg/kgSamples treated for 8 days; CSM treatment- High Conc- Treated with AFFF
PFUnA350 °C | 8 day <60% Percent Remaining<60 µg/kgSamples treated for 8 days; CSM treatment- High Conc- Treated with AFFF
PFDoA350 °C | 8 day <120% Percent Remaining<120 µg/kgSamples treated for 8 days; CSM treatment- High Conc- Treated with AFFF
PFTrDA350 °C | 8 day <120% Percent Remaining<120 µg/kgSamples treated for 8 days; CSM treatment- High Conc- Treated with AFFF
PFDA350 °C | 8 day <2400% Percent Remaining<2400 µg/kgSamples treated for 8 days; CSM treatment- High Conc- Treated with AFFF
PFNA350 °C | 8 day <2400% Percent Remaining<2400 µg/kgSamples treated for 8 days; CSM treatment- High Conc- Treated with AFFF
PFDoS350 °C | 8 day 3.19% Percent Remaining0.209 µg/kgSamples treated for 8 days; CSM treatment- High Conc- Treated with AFFF
FtS 4:2350 °C | 8 day 4.18% Percent Remaining<60 µg/kgSamples treated for 8 days; CSM treatment- High Conc- Treated with AFFF