Scope

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: Contaminated soil
Data Detail: Concentration of 3 PFAS in matrix before and after treatment; mass in matrix before treatment and in emission collection system at 2 experimental conditions

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Open Condition	Treatment Temperature	Treatment Time	Time Units	Treatment Details
Open Condition	1040	250	Minute	51 g GAC/kg soil; air flux = 5 cm/s; smoldering velocity = 0.38 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 IV-1
Open Condition	1012	250	Minute	51 g GAC/kg soil; air flux = 5 cm/s; smoldering velocity = 0.47 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 IV-2

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Analyte	Condition	Effectiveness (%)	Effectiveness Measure	Initial Concentration	Post Concentration	Additional Details
PFHxS	1040 °C \| 250 minute			0.017 mg/kg	Not detected	Data from Table S1 in supplemental information; quantification limit = 0.001 mg/kg
PFOA	1040 °C \| 250 minute			0.002 mg/kg	Not detected	Data from Table S1 in supplemental information; quantification limit = 0.001 mg/kg
PFOS	1040 °C \| 250 minute			0.353 mg/kg	Not detected	Data from Table S1 in supplemental information; quantification limit = 0.001 mg/kg
PFBA	1012 °C \| 250 minute			0.00284 mg/kg	Not detected	Data from Table S1 in supplemental information; quantification limit = 0.001 mg/kg
PFBS	1012 °C \| 250 minute			0.000329 mg/kg	Not detected	Data from Table S1 in supplemental information; quantification limit = 0.001 mg/kg
PFHxS	1012 °C \| 250 minute			0.00512 mg/kg	Not detected	Data from Table S1 in supplemental information; quantification limit = 0.001 mg/kg
PFOS	1012 °C \| 250 minute			0.092 mg/kg	Not detected	Data from Table S1 in supplemental information; quantification limit = 0.001 mg/kg
HF	1040 °C \| 250 minute	577%	Percent Fluorine Recovery	0 mg/kg		Data from Table 3
HF	1012 °C \| 250 minute	2438.1%	Percent Fluorine Recovery	0 mg/kg		Data from Table 3

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