PFAS in Water: Treatment Technologies and Practical Strategies
Join Dr. Clifford Fedler, Ph.D., P.E., BCEE, F.ASABE, for an in-depth look at emerging and proven technologies for reducing PFAS in drinking water. This recorded webinar explores treatment methods, regulatory updates, and practical considerations for utilities, engineers, and communities striving to meet new EPA standards and protect public health.
PFAS | Frequently Asked Questions
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Yes. The U.S. Environmental Protection Agency (EPA) has established maximum contaminant levels (MCLs) for key PFAS compounds such as PFOA and PFOS. These compounds do not break down naturally and can accumulate in living organisms, leading to adverse health and environmental impacts.
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The most commonly used treatment methods include:
Granular Activated Carbon (GAC) – proven, cost-effective, but less efficient for short-chain PFAS.
Ion Exchange Resins (IX) – effective for both long- and short-chain PFAS, with compact system footprints.
Reverse Osmosis (RO) – high removal efficiency (>90%) but produces concentrated waste streams.
Advanced Oxidation Processes (AOPs) – promising for breaking PFAS bonds, though operational costs are high.
Emerging Technologies – such as plasma, foam fractionation, electrochemical methods, and nanotech, which are showing potential in pilot programs.
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EPA-approved analytical methods like EPA 533 and 537.1 are used to detect PFAS at extremely low concentrations. Proper sampling protocols—including the use of HDPE bottles, temperature control, and avoiding certain clothing and materials—are critical to ensuring accurate results.
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Selection depends on factors like PFAS type, water chemistry, system size, regulatory requirements, and cost considerations. Bench or pilot testing is often required to evaluate which treatment technology—or combination of technologies—will achieve regulatory targets most effectively.
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Utilities should:
Conduct detailed PFAS sampling following approved methods.
Assess current infrastructure and water chemistry.
Evaluate treatment options through pilot studies.
Plan for long-term operations, maintenance, and potential media replacement or waste management.
Stay up to date with EPA regulations and funding opportunities.
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A copy of the presentation can be found here.
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