An inaccurate statement on this MSU website states, "Conventional treatments utilizing coagulation, flocculation, sedimentation and filtration will not remove PFAS." Researchers at Univ of Arizona + Rice University say, "not true". Univ of Arizona + Rice Univ used a nano-iron slurry that removed both PFAS + PFOA (see https://www.synthetic-metals.com/UnivArizona_PFOA-PFAS.pdf) in 2012. Our nanostructured iron based sorbent may not be conventional, but it deploys like a flocculant, has a BET surface area 17.5X greater than the slurry UofA + Rice used, and will remove PFAS + PFOA. Skeptical? Contact me via email, and I'll send you a jar testing (+/- 10 grams) for free, so you can test for yourself.
Thank you for making us aware of this research. I'll see if we can clarify the article. All the best to your continued research on PFAS.