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Scope

Scope Details

Reference
Duchesne, A.L., Brown, J.K., Patch, D.J., Major, D., Weber, K.P., and Gerhard, J.I. (2020) Remediation of PFAS-Contaminated Soil and Granular Activated Carbon by Smoldering Combustion - Environmental Science and Technology
Treatment Process
Smoldering
Test Scale
Lab
Matrix
Soil
Matrix Detail
Soil spiked with PFAS
Data Detail
Concentration of 6 PFAS in matrix before and after treatment; mass in matrix before treatment and in emission collection system at 4 experimental conditions

Condition

Open Condition
Treatment Temperature
Treatment Time
Time Units
Treatment Details
Open Condition 1093250Minute50 g GAC/kg soil; air flux = 5 cm/s; smoldering velocity = 0.64 cm/min; time interpreted from supplemental information Fig S2; temperature represents average peak temperature; exact time sampled after smoldering not given; stated that temperatures at all locations in the treatment zone spent between 10 and 61 min above 900 °C; corresponds to III-2
Open Condition 1145250Minute50 g GAC/kg soil; air flux = 5 cm/s; smoldering velocity = 0.71 cm/min; time interpreted from supplemental information Fig S2; temperature represents average peak temperature; exact time sampled after smoldering not given; stated that temperatures at all locations in the treatment zone spent between 10 and 61 min above 900 °C; corresponds to III-3
Open Condition 1143250Minute50 g GAC/kg soil; air flux = 5 cm/s; smoldering velocity = 0.48 cm/min; time interpreted from supplemental information Fig S2; temperature represents average peak temperature; exact time sampled after smoldering not given; stated that temperatures at all locations in the treatment zone spent between 10 and 61 min above 900 °C; corresponds to III-4
Open Condition 642250Minute15 g GAC/kg soil; air flux = 5 cm/s; smoldering velocity = 0.24 cm/min; time interpreted from supplemental information Fig S2; temperature represents average peak temperature; exact time sampled after smoldering not given; trial failed to reach the desired 900 C; corresponds to III-5

Thermal Treatment Results

Link to Results Record
Analyte
Condition
Effectiveness (%)
Effectiveness Measure
Initial Concentration
Post Concentration
Offgas Concentration
Additional Details
PFBS1093 °C | 250 minute 0.695 mg/kgNot detectedData from Table S1 in supplemental information; detection limit = 0.0004 mg/kg; PFBA, PFPeA, PFHxA, PFDA, PFUnA, PFDoA, and PFOSA not analyzed for in sample
PFHpA1093 °C | 250 minute 0.233 mg/kgNot detectedData from Table S1 in supplemental information; detection limit = 0.0004 mg/kg; PFBA, PFPeA, PFHxA, PFDA, PFUnA, PFDoA, and PFOSA not analyzed for in sample
PFHxS1093 °C | 250 minute 0.197 mg/kgNot detectedData from Table S1 in supplemental information; detection limit = 0.0004 mg/kg; PFBA, PFPeA, PFHxA, PFDA, PFUnA, PFDoA, and PFOSA not analyzed for in sample
PFOA1093 °C | 250 minute 3.363 mg/kg0.000301 mg/kgData from Table S1 in supplemental information; detection limit = 0.0004 mg/kg; PFBA, PFPeA, PFHxA, PFDA, PFUnA, PFDoA, and PFOSA not analyzed for in sample
PFNA1093 °C | 250 minute 0.344 mg/kgNot detectedData from Table S1 in supplemental information; detection limit = 0.0004 mg/kg; PFBA, PFPeA, PFHxA, PFDA, PFUnA, PFDoA, and PFOSA not analyzed for in sample
PFOS1093 °C | 250 minute 0.405 mg/kgNot detectedData from Table S1 in supplemental information; detection limit = 0.0004 mg/kg; PFBA, PFPeA, PFHxA, PFDA, PFUnA, PFDoA, and PFOSA not analyzed for in sample
PFBS1145 °C | 250 minute 0.089 mg/kgNot detectedData from Table S1 in supplemental information; detection limit = 0.0004 mg/kg
PFHpA1145 °C | 250 minute 0.22 mg/kgNot detectedData from Table S1 in supplemental information; detection limit = 0.0004 mg/kg
PFHxS1145 °C | 250 minute 0.171 mg/kgNot detectedData from Table S1 in supplemental information; detection limit = 0.0004 mg/kg
PFOA1145 °C | 250 minute 2.442 mg/kgNot detectedData from Table S1 in supplemental information; detection limit = 0.0004 mg/kg
PFNA1145 °C | 250 minute 0.158 mg/kgNot detectedData from Table S1 in supplemental information; detection limit = 0.0004 mg/kg
PFDA1145 °C | 250 minute 0.00125 mg/kgNot detectedData from Table S1 in supplemental information; detection limit = 0.0004 mg/kg
PFOS1145 °C | 250 minute 0.216 mg/kgNot detectedData from Table S1 in supplemental information; detection limit = 0.0004 mg/kg
PFBS1143 °C | 250 minute 0.126 mg/kgNot detectedData from Table S1 in supplemental information; detection limit = 0.0004 mg/kg
PFHpA1143 °C | 250 minute 0.313 mg/kgNot detectedData from Table S1 in supplemental information; detection limit = 0.0004 mg/kg
PFHxS1143 °C | 250 minute 0.219 mg/kgNot detectedData from Table S1 in supplemental information; detection limit = 0.0004 mg/kg
PFOA1143 °C | 250 minute 3.006 mg/kgNot detectedData from Table S1 in supplemental information; detection limit = 0.0004 mg/kg
PFNA1143 °C | 250 minute 0.185 mg/kgNot detectedData from Table S1 in supplemental information; detection limit = 0.0004 mg/kg
PFOS1143 °C | 250 minute 0.322 mg/kgNot detectedData from Table S1 in supplemental information; detection limit = 0.0004 mg/kg
PFBA642 °C | 250 minute 0.00173 mg/kgNot detectedData from Table S1 in supplemental information; detection limit = 0.0004 mg/kg
PFBS642 °C | 250 minute 0.074 mg/kgNot detectedData from Table S1 in supplemental information; detection limit = 0.0004 mg/kg
PFHpA642 °C | 250 minute 0.108 mg/kgNot detectedData from Table S1 in supplemental information; detection limit = 0.0004 mg/kg
PFHxS642 °C | 250 minute 0.069 mg/kgNot detectedData from Table S1 in supplemental information; detection limit = 0.0004 mg/kg
PFOA642 °C | 250 minute 2.386 mg/kgNot detectedData from Table S1 in supplemental information; detection limit = 0.0004 mg/kg
PFNA642 °C | 250 minute 0.095 mg/kgNot detectedData from Table S1 in supplemental information; detection limit = 0.0004 mg/kg
PFOS642 °C | 250 minute 0.162 mg/kgNot detectedData from Table S1 in supplemental information; detection limit = 0.0004 mg/kg
HF1093 °C | 250 minute 16.6% Percent Fluorine Recovery0 mg/kgData from Table 3
HF1143 °C | 250 minute 16.1% Percent Fluorine Recovery0 mg/kgData from Table 3
HF642 °C | 250 minute <8.42% Percent Fluorine Recovery0 mg/kgData from Table 3
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Last updated on October 15, 2024.