(193a) Novel Sorbents Development for Selective Removal of Pfas from Gaseous Phase and Aqueous Stream

This paper will present two novel sorbents we developed recently for selective removal of per and polyfluoroalkyl substances (PFAS) from gaseous and aqueous phase. Volatile and semi-volatile PFAS contaminants, such as fluorotelomer alcohols (FTOHs), and gaseous byproducts from PFAS treatment, are very challenging. PFAS in groundwater and industrial wastewater are big hurdles for current technologies. The cost-effective sorbents developed overcome the PFAS selectivity challenges, easy to install, and thus provide a unique approach for PFAS removal from both gaseous and aqueous phases. The adsorption capacity of the sorbents was measured with model compounds. The gas phase sorbent can be used to capture PFAS emitted from landfills, and the sorbent for aqueous phase PFAS removal will be combined with the nanofiber membrane technology for landfill leachate treatment. The project was supported by EPA SBIR Phase 2 project (Contract Number 68HERC20C0057).