5 Misconceptions About PFAS Removal Technologies

As water utilities work to meet emerging regulatory requirements for PFAS removal, the choice between treatment technologies like granular activated carbon (GAC) and ion exchange (IX) becomes increasingly important. Both approaches are widely used and technically mature, but lingering misconceptions can cloud utility decision-making, potentially leading to suboptimal system design or performance issues. These misunderstandings often arise from misinterpreted data, testing limitations, or assumptions carried over from unrelated applications. Without clear guidance, utilities may prematurely dismiss viable options or misjudge the operational realities of each method. Fortunately, tools and strategies are available to better assess treatment effectiveness and adapt solutions to site-specific needs. By re-examining prevailing assumptions and taking a more nuanced approach to pilot testing, hydraulic considerations, and media management, utilities can navigate PFAS treatment selection with greater confidence. This article explores some of the most persistent misunderstandings surrounding PFAS removal and offers insights that can help utilities refine their approach and achieve long-term compliance and water quality goals.