PFAS-Selective Ion Exchange For Environmental Remediation: Compact, Targeted, And Field-Proven

PFAS cleanup is getting harder. Federal and state regulators are tightening discharge limits, sometimes to single-digit parts per trillion. Remediation sites also bring their own complications: mixed PFAS species, shifting flow rates, and water loaded with solids, oils, metals, and organic matter. Treatment systems must reliably meet these low targets in the field while remaining practical to operate and maintain.

This paper explains how PFAS-selective ion exchange works and why the Purofine PFA694 approach suits sites with limited space and long run times. It also explains why pretreatment often decides whether a system performs well or fails early. Examples from a military groundwater site, an airport firefighting-foam cleanup, and refinery stormwater show ion exchange working as the final polishing step in a broader treatment system.