ABSTRACT
This chapter summarizes the behavior of legacy and emerging perfluoroalkyl substances (PFAS) and their transformation through established treatment technologies, includes comments on the mechanistic understanding, and highlights advancements of promising novel treatment technologies for the physical separation or destruction of PFAS in water. Oscar Quinones and Shane A. Snyder compared the concentration of eight perfluoroalkyl acids in the influents and effluents of several different drinking water treatment facilities. X. Dauchy monitored the most comprehensive list of PFAS to date at a single wastewater treatment plant that utilized activated sludge, sludge flotation, and sand filtration downstream of a fluorochemical manufacturing facility. Powdered activated carbon could be used on an as-needed basis to reduce the concentration of long-chain perfluoroalkyl substances. David J. Lampert investigated the removal of perfluorooctanoic acid using acrylic gel anion exchange resins. Research on the removal of PFAS using membrane filtration shows that RO and NF are effective at removing all analyzable PFAS.
