Abstract

A method of reducing a concentration of PFAS in a solid waste is disclosed. The method comprises combining the solid waste with an alcohol solution to provide a mixture of a solid phase and a liquid phase in which the solid phase comprises insoluble components of the solid waste and the liquid phase comprises the alcohol solution and at least a portion of the PFAS. The solid phase and the liquid phase are then separated to provide cleaned solid waste and an alcohol solution comprising PFAS.

IPC Classes  ?

• B09B 3/80 - Destroying solid waste or transforming solid waste into something useful or harmless involving an extraction step
• B01D 5/00 - Condensation of vapoursRecovering volatile solvents by condensation
• B01D 11/02 - Solvent extraction of solids
• B01D 33/01 - Filters with filtering elements which move during the filtering operation with translationally moving filtering elements, e.g. pistons
• B09B 101/45 - Concrete
• B09B 101/50 - Glass
• B09B 101/90 - Soil, e.g. excavated soil from construction sites
• B09C 1/02 - Extraction using liquids, e.g. washing, leaching