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Scope Details
Condition
Thermal Treatment Results

Reference: Matthis, J., and Carr, S. (2019) Reactivation of Spent Activated Carbon Used for PFAS Adsorption - Perfluoroalkyl Substances in the Environment
Treatment Process: GAC Reactivation
Test Scale: Full
Matrix: Treatment Media
Matrix Detail: GAC
Data Detail: Post-reactivation leaching results for 15 PFAS; pre-treatment concentrations not reported

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Open Condition	Treatment Temperature	Treatment Time	Time Units	Treatment Details
Open Condition			Not reported	Specific treatment temperature not reported. Author indicated the activation process/steam gasification typically occurs between at 1450 deg F and1800 deg F (~780-980 deg C).

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Link to Results Record	Analyte	Condition	Effectiveness (%)	Effectiveness Measure	Initial Concentration	Post Concentration	Offgas Concentration	Additional Details
	PFBA	Not reported				1.9 ppt		From Table 13.1 (page 17/22). "The reactivated carbon sample was loaded into a column, was backwashed with approximately 8 bed volumes of NSF42 leaching protocol water (50 ppm total dissolved solids [TDSs], 0.5 ppm Cl-, and pH 6.75), was allowed to sit for 24 hours in 1 BV of water, and then sampled. These steps were repeated two additional times and the three leachate samples were composited for analysis. [...] The carbon used in this trial treated approximately 310 million gallons of drinking water with influent PFAS concentrations ranging from 0.5 to 1 ppb (μg/L)" (page 16/22).
	PFDS	Not reported				<0.28 ppt		From Table 13.1 (page 17/22). "The reactivated carbon sample was loaded into a column, was backwashed with approximately 8 bed volumes of NSF42 leaching protocol water (50 ppm total dissolved solids [TDSs], 0.5 ppm Cl-, and pH 6.75), was allowed to sit for 24 hours in 1 BV of water, and then sampled. These steps were repeated two additional times and the three leachate samples were composited for analysis. [...] The carbon used in this trial treated approximately 310 million gallons of drinking water with influent PFAS concentrations ranging from 0.5 to 1 ppb (μg/L)" (page 16/22).
	PFPeA	Not reported				<0.43 ppt		From Table 13.1 (page 17/22). "The reactivated carbon sample was loaded into a column, was backwashed with approximately 8 bed volumes of NSF42 leaching protocol water (50 ppm total dissolved solids [TDSs], 0.5 ppm Cl-, and pH 6.75), was allowed to sit for 24 hours in 1 BV of water, and then sampled. These steps were repeated two additional times and the three leachate samples were composited for analysis. [...] The carbon used in this trial treated approximately 310 million gallons of drinking water with influent PFAS concentrations ranging from 0.5 to 1 ppb (μg/L)" (page 16/22).
	PFHxA	Not reported				<0.51 ppt		From Table 13.1 (page 17/22). "The reactivated carbon sample was loaded into a column, was backwashed with approximately 8 bed volumes of NSF42 leaching protocol water (50 ppm total dissolved solids [TDSs], 0.5 ppm Cl-, and pH 6.75), was allowed to sit for 24 hours in 1 BV of water, and then sampled. These steps were repeated two additional times and the three leachate samples were composited for analysis. [...] The carbon used in this trial treated approximately 310 million gallons of drinking water with influent PFAS concentrations ranging from 0.5 to 1 ppb (μg/L)" (page 16/22).
	PFHpA	Not reported				<0.22 ppt		From Table 13.1 (page 17/22). "The reactivated carbon sample was loaded into a column, was backwashed with approximately 8 bed volumes of NSF42 leaching protocol water (50 ppm total dissolved solids [TDSs], 0.5 ppm Cl-, and pH 6.75), was allowed to sit for 24 hours in 1 BV of water, and then sampled. These steps were repeated two additional times and the three leachate samples were composited for analysis. [...] The carbon used in this trial treated approximately 310 million gallons of drinking water with influent PFAS concentrations ranging from 0.5 to 1 ppb (μg/L)" (page 16/22).
	PFOA	Not reported				<0.75 ppt		From Table 13.1 (page 17/22). "The reactivated carbon sample was loaded into a column, was backwashed with approximately 8 bed volumes of NSF42 leaching protocol water (50 ppm total dissolved solids [TDSs], 0.5 ppm Cl-, and pH 6.75), was allowed to sit for 24 hours in 1 BV of water, and then sampled. These steps were repeated two additional times and the three leachate samples were composited for analysis. [...] The carbon used in this trial treated approximately 310 million gallons of drinking water with influent PFAS concentrations ranging from 0.5 to 1 ppb (μg/L)" (page 16/22).
	PFNA	Not reported				<0.24 ppt		From Table 13.1 (page 17/22). "The reactivated carbon sample was loaded into a column, was backwashed with approximately 8 bed volumes of NSF42 leaching protocol water (50 ppm total dissolved solids [TDSs], 0.5 ppm Cl-, and pH 6.75), was allowed to sit for 24 hours in 1 BV of water, and then sampled. These steps were repeated two additional times and the three leachate samples were composited for analysis. [...] The carbon used in this trial treated approximately 310 million gallons of drinking water with influent PFAS concentrations ranging from 0.5 to 1 ppb (μg/L)" (page 16/22).
	PFDA	Not reported				<0.27 ppt		From Table 13.1 (page 17/22). "The reactivated carbon sample was loaded into a column, was backwashed with approximately 8 bed volumes of NSF42 leaching protocol water (50 ppm total dissolved solids [TDSs], 0.5 ppm Cl-, and pH 6.75), was allowed to sit for 24 hours in 1 BV of water, and then sampled. These steps were repeated two additional times and the three leachate samples were composited for analysis. [...] The carbon used in this trial treated approximately 310 million gallons of drinking water with influent PFAS concentrations ranging from 0.5 to 1 ppb (μg/L)" (page 16/22).
	PFUnA	Not reported				<0.97 ppt		From Table 13.1 (page 17/22). "The reactivated carbon sample was loaded into a column, was backwashed with approximately 8 bed volumes of NSF42 leaching protocol water (50 ppm total dissolved solids [TDSs], 0.5 ppm Cl-, and pH 6.75), was allowed to sit for 24 hours in 1 BV of water, and then sampled. These steps were repeated two additional times and the three leachate samples were composited for analysis. [...] The carbon used in this trial treated approximately 310 million gallons of drinking water with influent PFAS concentrations ranging from 0.5 to 1 ppb (μg/L)" (page 16/22).
	PFDoA	Not reported				<0.049 ppt		From Table 13.1 (page 17/22). "The reactivated carbon sample was loaded into a column, was backwashed with approximately 8 bed volumes of NSF42 leaching protocol water (50 ppm total dissolved solids [TDSs], 0.5 ppm Cl-, and pH 6.75), was allowed to sit for 24 hours in 1 BV of water, and then sampled. These steps were repeated two additional times and the three leachate samples were composited for analysis. [...] The carbon used in this trial treated approximately 310 million gallons of drinking water with influent PFAS concentrations ranging from 0.5 to 1 ppb (μg/L)" (page 16/22).
	PFTrDA	Not reported				<1.1 ppt		From Table 13.1 (page 17/22). "The reactivated carbon sample was loaded into a column, was backwashed with approximately 8 bed volumes of NSF42 leaching protocol water (50 ppm total dissolved solids [TDSs], 0.5 ppm Cl-, and pH 6.75), was allowed to sit for 24 hours in 1 BV of water, and then sampled. These steps were repeated two additional times and the three leachate samples were composited for analysis. [...] The carbon used in this trial treated approximately 310 million gallons of drinking water with influent PFAS concentrations ranging from 0.5 to 1 ppb (μg/L)" (page 16/22).
	PFTeDA	Not reported				<0.26 ppt		From Table 13.1 (page 17/22). "The reactivated carbon sample was loaded into a column, was backwashed with approximately 8 bed volumes of NSF42 leaching protocol water (50 ppm total dissolved solids [TDSs], 0.5 ppm Cl-, and pH 6.75), was allowed to sit for 24 hours in 1 BV of water, and then sampled. These steps were repeated two additional times and the three leachate samples were composited for analysis. [...] The carbon used in this trial treated approximately 310 million gallons of drinking water with influent PFAS concentrations ranging from 0.5 to 1 ppb (μg/L)" (page 16/22).
	PFBS	Not reported				<0.18 ppt		From Table 13.1 (page 17/22). "The reactivated carbon sample was loaded into a column, was backwashed with approximately 8 bed volumes of NSF42 leaching protocol water (50 ppm total dissolved solids [TDSs], 0.5 ppm Cl-, and pH 6.75), was allowed to sit for 24 hours in 1 BV of water, and then sampled. These steps were repeated two additional times and the three leachate samples were composited for analysis. [...] The carbon used in this trial treated approximately 310 million gallons of drinking water with influent PFAS concentrations ranging from 0.5 to 1 ppb (μg/L)" (page 16/22).
	PFHxS	Not reported				0.23 ppt		From Table 13.1 (page 17/22). "The reactivated carbon sample was loaded into a column, was backwashed with approximately 8 bed volumes of NSF42 leaching protocol water (50 ppm total dissolved solids [TDSs], 0.5 ppm Cl-, and pH 6.75), was allowed to sit for 24 hours in 1 BV of water, and then sampled. These steps were repeated two additional times and the three leachate samples were composited for analysis. [...] The carbon used in this trial treated approximately 310 million gallons of drinking water with influent PFAS concentrations ranging from 0.5 to 1 ppb (μg/L)" (page 16/22).
	PFHpS	Not reported				<0.17 ppt		From Table 13.1 (page 17/22). "The reactivated carbon sample was loaded into a column, was backwashed with approximately 8 bed volumes of NSF42 leaching protocol water (50 ppm total dissolved solids [TDSs], 0.5 ppm Cl-, and pH 6.75), was allowed to sit for 24 hours in 1 BV of water, and then sampled. These steps were repeated two additional times and the three leachate samples were composited for analysis. [...] The carbon used in this trial treated approximately 310 million gallons of drinking water with influent PFAS concentrations ranging from 0.5 to 1 ppb (μg/L)" (page 16/22).
	PFOS	Not reported				<0.48 ppt		From Table 13.1 (page 17/22). "The reactivated carbon sample was loaded into a column, was backwashed with approximately 8 bed volumes of NSF42 leaching protocol water (50 ppm total dissolved solids [TDSs], 0.5 ppm Cl-, and pH 6.75), was allowed to sit for 24 hours in 1 BV of water, and then sampled. These steps were repeated two additional times and the three leachate samples were composited for analysis. [...] The carbon used in this trial treated approximately 310 million gallons of drinking water with influent PFAS concentrations ranging from 0.5 to 1 ppb (μg/L)" (page 16/22).

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