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Scope Details

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

Condition

Open ConditionTreatment Details
Open Condition Not reportedSpecific 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).

Thermal Treatment Results

PFBANot 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).
PFDSNot 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).
PFPeANot 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).
PFHxANot 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).
PFHpANot 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).
PFOANot 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).
PFNANot 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).
PFDANot 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).
PFUnANot 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).
PFDoANot 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).
PFTrDANot 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).
PFTeDANot 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).
PFBSNot 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).
PFHxSNot 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).
PFHpSNot 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).
PFOSNot 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).