Patent ID: 11911743
Assignee: CALGON CARBON CORPORATION
Field: Chemical engineering (Chemistry)
Classification: CPC B  C  Y | IPC B  C

Claim 0:
1. A method of removing perfluoroalkyl and polyfluoroalkyl substances (PFAS) from liquid or gas, the method comprising:
providing a first sorbent material, wherein about 0.5 wt. % to about 25 wt. % of the first sorbent material comprises a salt, oxide, or hydroxide of magnesium, calcium, strontium, barium or combination or compound thereof to thereby increase the sorbent capacity of the sorbent material to perfluoroalkyl and polyfluoroalkyl substances (PFAS) relative to sorbent material that does not include the salt, oxide, or hydroxide; and
contacting the first sorbent material with a liquid or gas containing the PFAS, wherein the first sorbent material includes one or more of carbonaceous char, activated carbon, and reactivated carbon.