ABSTRACT
An evaluation of best available technologies for poly- and perfluoroalkyl substances (PFAS) removal and treatment in groundwater reviewed technologies for pilot testing to support the design of a groundwater treatment plant at the site. Emerging Compounds Treatment Technologies divided the resin pilot test activities into an initial loading cycle to evaluate virgin resin removal capacity for PFAS and subsequent alternating cycles of resin loading and regeneration to evaluate the effectiveness of regenerating spent resin. Both Sorbix A3F resin and F400 granular activated carbon demonstrated removal of PFAS below achievable laboratory quantification limits and the US Environmental Protection Agency health advisories for perfluorooctanesulfonic acid and Perfluorooctanoic acid. Collected data allowed for development of breakthrough curves and calculation of removal capacities for PFAS in both Sorbix A3F resin and F400 GAC. The Sorbix A3F resin was regenerated in place to near-virgin PFAS removal performance under simulated full-scale operating conditions.
