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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
Contaminated soil
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

Thermal Treatment Results

PFOA350 °C | 8 day >97% Percent Removed5.55 µg/kgSamples treated for 8 days- Native removal- Low concentration
PFOS350 °C | 8 day 99.6% Percent Removed429 µg/kgSamples treated for 8 days- Native removal- Low concentration
Total PFAS350 °C | 8 day =99.6% Percent Removed=516 µg/kgSamples treated for 8 days- Native removal- Low concentration
PFOA350 °C | 8 day >74% Percent Removed10.4 µg/kgSamples treated for 8 days- TOPA removal- Low concentration
PFOS350 °C | 8 day 99.6% Percent Removed490 µg/kgSamples treated for 8 days- TOPA removal- Low concentration
Total PFAS350 °C | 8 day =99.6% Percent Removed=709 µg/kgSamples treated for 8 days- TOPA removal- Low concentration
PFOA350 °C | 8 day >74% Percent Removed7.57 µg/kgSamples treated for 8 days- CSM removal- Low concentration
PFOS350 °C | 8 day 99.6% Percent Removed612 µg/kgSamples treated for 8 days- CSM removal- Low concentration
Total PFAS350 °C | 8 day =99.9% Percent Removed=774 µg/kgSamples treated for 8 days- CSM removal- Low concentration
PFBA350 °C | 8 day 0.597% Percent Remaining0.606 µg/kgSoil Results - Low Concentration Test- Treated for 8 days
PFPeA350 °C | 8 day =0.298% Percent Remaining=2.6 µg/kgSoil Results - Low Concentration Test- Treated for 8 days
PFHxA350 °C | 8 day 0.145% Percent Remaining11.8 µg/kgSoil Results - Low Concentration Test- Treated for 8 days
PFHpA350 °C | 8 day 0.145% Percent Remaining1.17 µg/kgSoil Results - Low Concentration Test- Treated for 8 days
PFNA350 °C | 8 day 0.145% Percent Remaining0.876 µg/kgSoil Results - Low Concentration Test- Treated for 8 days
PFDA350 °C | 8 day 0.145% Percent Remaining0.114 µg/kgSoil Results - Low Concentration Test- Treated for 8 days
PFUnA350 °C | 8 day =0.145% Percent Remaining=0.154 µg/kgSoil Results - Low Concentration Test- Treated for 8 days
PFDoA350 °C | 8 day 0.145% Percent Remaining0.154 µg/kgSoil Results - Low Concentration Test- Treated for 8 days
PFTrDA350 °C | 8 day =0.145% Percent Remaining=0.154 µg/kgSoil Results - Low Concentration Test- Treated for 8 days
PFTeDA350 °C | 8 day =0.145% Percent Remaining=0.154 µg/kgSoil Results - Low Concentration Test- Treated for 8 days
PFBS350 °C | 8 day 0.145% Percent Remaining0.52 µg/kgSoil Results - Low Concentration Test- Treated for 8 days
PFPeS350 °C | 8 day 0.145% Percent Remaining2.05 µg/kgSoil Results - Low Concentration Test- Treated for 8 days
PFHxS350 °C | 8 day 0.136% Percent Remaining44.6 µg/kgSoil Results - Low Concentration Test- Treated for 8 days
PFHpS350 °C | 8 day 0.126% Percent Remaining7.38 µg/kgSoil Results - Low Concentration Test- Treated for 8 days
PFNS350 °C | 8 day 0.136% Percent Remaining0.136 µg/kgSoil Results - Low Concentration Test- Treated for 8 days
PFDS350 °C | 8 day 0.145% Percent Remaining0.254 µg/kgSoil Results - Low Concentration Test- Treated for 8 days
PFDoS350 °C | 8 day 0.136% Percent Remaining0.145 µg/kgSoil Results - Low Concentration Test- Treated for 8 days
FtS 4:2350 °C | 8 day 0.579% Percent Remaining0.617 µg/kgSoil Results - Low Concentration Test- Treated for 8 days
FtS 6:2350 °C | 8 day 0.524% Percent Remaining6.86 µg/kgSoil Results - Low Concentration Test- Treated for 8 days
FtS 8:2350 °C | 8 day 0.579% Percent Remaining1.76 µg/kgSoil Results - Low Concentration Test- Treated for 8 days
PFOSA350 °C | 8 day 0.145% Percent Remaining0.901 µg/kgSoil Results - Low Concentration Test- Treated for 8 days
MeFOSA350 °C | 8 day 0% Percent Remaining0 µg/kgSoil Results - Low Concentration Test- Treated for 8 days
Et-FOSA350 °C | 8 day 0% Percent Remaining0 µg/kgSoil Results - Low Concentration Test- Treated for 8 days
N-MeFOSAA350 °C | 8 day 0.145% Percent Remaining0.154 µg/kgSoil Results - Low Concentration Test- Treated for 8 days
N-EtFOSAA350 °C | 8 day 0.145% Percent Remaining0.134 µg/kgSoil Results - Low Concentration Test- Treated for 8 days
N-MeFOSE350 °C | 8 day 1.47% Percent Remaining1.57 µg/kgSoil Results - Low Concentration Test- Treated for 8 days
Et-FOSE350 °C | 8 day 1.11% Percent Remaining1.19 µg/kgSoil Results - Low Concentration Test- Treated for 8 days
PFBA350 °C | 8 day <6% Percent Remaining<6 µg/kgLow Concentration Test Results - CSM (Total)
PFPeA350 °C | 8 day <141.3% Percent Remaining<141.3 µg/kgLow Concentration Test Results - CSM (Total)
PFHxA350 °C | 8 day 22.2% Percent Remaining<1.8 µg/kgLow Concentration Test Results - CSM (Total)
PFHpA350 °C | 8 day <6.08% Percent Remaining<6.08 µg/kgLow Concentration Test Results - CSM (Total)
PFNA350 °C | 8 day <22.44% Percent Remaining<22.44 µg/kgLow Concentration Test Results - CSM (Total)
PFDA350 °C | 8 day <0.6% Percent Remaining<0.6 µg/kgLow Concentration Test Results - CSM (Total)
PFNA350 °C | 8 day <0.6% Percent Remaining<0.6 µg/kgLow Concentration Test Results - CSM (Total)
PFUnA350 °C | 8 day <0.6% Percent Remaining<0.6 µg/kgLow Concentration Test Results - CSM (Total)
PFDoA350 °C | 8 day <0.6% Percent Remaining<0.6 µg/kgLow Concentration Test Results - CSM (Total)
PFTrDA350 °C | 8 day <0.6% Percent Remaining<0.6 µg/kgLow Concentration Test Results - CSM (Total)
PFTeDA350 °C | 8 day <1.2% Percent Remaining<1.2 µg/kgLow Concentration Test Results - CSM (Total)
PFBS350 °C | 8 day 0.958% Percent Remaining<0.13 µg/kgLow Concentration Test Results - CSM (Total)
PFPeS350 °C | 8 day =3.97% Percent Remaining<1.2 µg/kgLow Concentration Test Results - CSM (Total)
PFHxS350 °C | 8 day 95.9% Percent Remaining0.977 µg/kgLow Concentration Test Results - CSM (Total)
PFHpS350 °C | 8 day 9.8% Percent Remaining<0.6 µg/kgLow Concentration Test Results - CSM (Total)
PFNS350 °C | 8 day 1.8% Percent Remaining<0.15 µg/kgLow Concentration Test Results - CSM (Total)
PFDS350 °C | 8 day 0.816% Percent Remaining<0.17 µg/kgLow Concentration Test Results - CSM (Total)
PFDoS350 °C | 8 day 0.648% Percent Remaining<0.17 µg/kgLow Concentration Test Results - CSM (Total)
FtS 4:2350 °C | 8 day <1.2% Percent Remaining<1.2 µg/kgLow Concentration Test Results - CSM (Total)
FtS 6:2350 °C | 8 day 16.9% Percent Remaining<2.4 µg/kgLow Concentration Test Results - CSM (Total)
FtS 8:2350 °C | 8 day <1.2% Percent Remaining<1.2 µg/kgLow Concentration Test Results - CSM (Total)
PFOSA350 °C | 8 day 1.35% Percent Remaining<1.27 µg/kgLow Concentration Test Results - CSM (Total)
N-MeFOSE350 °C | 8 day <0.12% Percent Remaining<0.12 µg/kgLow Concentration Test Results - CSM (Total)
N-EtFOSAA350 °C | 8 day <0.6% Percent Remaining<0.6 µg/kgLow Concentration Test Results - CSM (Total)
MeFOSA350 °C | 8 day <1.77% Percent Remaining<1.77 µg/kgLow Concentration Test Results - CSM (Total)
Et-FOSA350 °C | 8 day <1.98% Percent Remaining<1.98 µg/kgLow Concentration Test Results - CSM (Total)
FOSAA350 °C | 8 day <5.66% Percent Remaining<5.66 µg/kgLow Concentration Test Results - CSM (Total)