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: Treatment Media
Matrix Detail: GAC spiked with PFAS
Data Detail: PFOS concentration 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	1048	250	Minute	44 g GAC/kg sand; air flux = 5 cm/s; smoldering velocity = 0.45 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 II-1
Open Condition	1011	250	Minute	46 g GAC/kg sand; air flux = 5 cm/s; smoldering velocity = 0.40 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 II-2

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Analyte	Condition	Effectiveness (%)	Effectiveness Measure	Initial Concentration	Post Concentration	Additional Details
PFOS	1048 °C \| 250 minute			182.1 mg/kg	Not detected	Data from Table S1 in supplemental information; detection limit = 0.0004 mg/kg
PFHxS	1011 °C \| 250 minute			0.195 mg/kg	Not detected	Data from Table S1 in supplemental information; detection limit = 0.0004 mg/kg
PFOS	1011 °C \| 250 minute			197.7 mg/kg	0.431 mg/kg	Data from Table S1 in supplemental information; detection limit = 0.0004 mg/kg
HF	1048 °C \| 250 minute	45.7%	Percent Fluorine Recovery	0 mg/kg		Data from Table 3
HF	1011 °C \| 250 minute	40.6%	Percent Fluorine Recovery	0 mg/kg		Data from Table 3

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