Comparison of the PFAS Adsorption Capabilities of a Coconut Shell Based Granular Activated Carbon and a Bituminous Coal Based Granular Activated Carbon
Technical Report,01 Mar 2019,26 Mar 2020
AIR FORCE INSTITUTE OF TECHNOLOGY WRIGHT-PATTERSON AFB OH WRIGHT-PATTERSON AFB United States
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This research compares the ability of two granular activated carbons GAC to adsorb perfluoroalkyl substances PFAS in water. A bottle study was used to measure reduction in perfluorooctanoic acid PFOA and perfluorooctane sulfonic acid PFOS. The carbons used were coal and coconut shell based variants. The research focused on the rates at which the two contaminants were removed. Results showed that both GACs were capable of reducing the concentration 95 for both PFOS and PFOA, and that coconut GAC was able to compete with coal based GAC. Additionally, PFOS was removed more quickly than PFOA, which is similar to what has been observed in previous research.
- Water Pollution and Control