PFAS CHEMICAL DESTRUCTION PROCESS IN ENVIRONMENTAL MEDIA

Organization Name

PERMA-FIX ENVIRONMENTAL SERVICES, INC.

Inventor(s)

Louis F. Centofanti of Atlanta GA US

Tommy W. Yarbrough of Atlanta GA US

Jose Gabriel Garcia of Atlanta GA US

Christopher M. Dyer of Atlanta GA US

PFAS CHEMICAL DESTRUCTION PROCESS IN ENVIRONMENTAL MEDIA

This abstract first appeared for US patent application 18888350 titled 'PFAS CHEMICAL DESTRUCTION PROCESS IN ENVIRONMENTAL MEDIA

Original Abstract Submitted

A system and method for destroying and disposing a fluorinated material, such as PFAS, with reduced emissions of gaseous PFC is provided. The method can be applied to soil or other environmental media containing the PFAS, for example at the site of the soil, either in a batch reactor or in situ. The method can include mixing PFAS, a hydroxide base, and optionally a solvent in the batch reactor to form a suspension. The reaction mixture can be heated to a temperature of 25° C. to 400° C. for about 0.5 hours to 240 hours to defluorinate the corresponding PFAS fluorocarbons and produce a defluorinated waste product. Alternatively, the suspension can be maintained for a sufficient time at room temperature. The hydroxide base and optional solvent can also be sprayed on the PFAS and optionally heated. The method converts organic fluorine present in the PFAS contaminated soil to inorganic fluoride.