Trend Technology 4: PFAS treatment moves from containment to destruction of the carbon-fluorine bond

Summary

PFAS destruction is the report's fourth emerging technology, aiming to eliminate so-called forever chemicals instead of merely relocating them. PFAS were designed to resist heat, water and chemical breakdown, and they now turn up in Arctic snow, rainwater on every continent and the blood of nearly everyone tested. Conventional treatment only moves them elsewhere, because destroying them requires breaking the carbon–fluorine bond, one of the strongest in organic chemistry. Several methods can now do this: supercritical water that splits PFAS into water, carbon dioxide and mineral salts, electrodes that strip electrons from the molecules in concentrated industrial waste, and ultraviolet-driven catalysts aimed at the bond itself. The most capable systems first concentrate PFAS through filtration and then destroy them, which makes large-scale deployment possible. Operating sites in Michigan and at Daikin show the approach working on both legacy contamination and active waste streams.