alt Hacker NewsActivated carbon filtering removes up to about 75% of PFAS. Reverse-osmosis removes almost all.
Doesn't get rid of them, to be clear. It would still be better if a way could be found to chemically (and cheaply) convert them to something less harmful.
Replies
N2yhWNXQN3k9 • last Sunday at 6:29 PM
> Activated carbon filtering removes up to about 75%
Seems like the limitation must be more than reducing concentrations in fluid? Otherwise you'd just do multiple passes?
momoschili • last Sunday at 7:07 PM
Yes, the key here is the degradation of the forever chemical, not the removal. Removal itself doesn't really change the environmental scale of it
> Activated carbon filtering removes up to about 75% of PFAS
Common inexpensive non-RO filter systems come with independent test results showing 99% removal of PFOA/PFOS (see e.g https://www.brondell.com/content/UC300_Coral_PDS.pdf). Do we have reason to believe that other PFAS don't filter as easily?