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Scope Details

Reference
Watanabe, N., Takata, M., Takemine, S., and Yamamoto, K. (2018) Thermal mineralization behavior of PFOA, PFHxA, and PFOS during reactivation of granular activated carbon (GAC) in nitrogen atmosphere - Environmental Science and Pollution Research
Treatment Process
GAC Reactivation
Test Scale
Lab
Matrix
Treatment Media
Matrix Detail
GAC spiked with PFAS
Data Detail
Recovery rate of mineralized F and percent remaining of total PFCAs for GAC spiked with 3 different PFAS under 2 gas conditions (N2, steam+NaOH)

Condition

Open ConditionTreatment Details
Open Condition 70010MinuteHeated in nitrogen gas environment in quartz tube
Open Condition 70010MinuteHeated in steamed environment with added NaOH

Thermal Treatment Results

PFOA700 °C | 10 minute 56% Percent Fluorine Recovery49.4 mg/gInitial value refers to amount PFOA absorbed onto GAC media per gram of GAC media
PFOA700 °C | 10 minute 73.9% Percent Fluorine Recovery49.4 mg/g
PFHxA700 °C | 10 minute 71% Percent Fluorine Recovery47.3 mg/gInitial value refers to amount PFHxA absorbed onto GAC media per gram of GAC media
PFHxA700 °C | 10 minute 90.5% Percent Fluorine Recovery47.3 mg/gInitial value refers to amount PFHxA absorbed onto GAC media per gram of GAC media
PFOS700 °C | 10 minute 70% Percent Fluorine Recovery10 mg/gInitial value refers to amount PFOS absorbed onto GAC media per gram of GAC media
PFOS700 °C | 10 minute 79% Percent Fluorine Recovery10 mg/gInitial value refers to amount PFOS absorbed onto GAC media per gram of GAC media