From Financial Times today: “Chemists from Northwestern University in Illinois and the University of California Los Angeles have developed an inexpensive, low-energy process that breaks down two of the most important classes of PFAS into harmless chemicals. The discovery was published in the journal Science on Thursday.”
The Science article: https://www.science.org/doi/10.1126/science.abm8868
This fits best as a final disposal method. You remove them from water by treatment with activated carbon. That would probably be regenerated with hot water giving a more concentrated solution for treatment. You might evaporate the water to further concentrate. Then the above process to degrade the materials collected to harmless materials.
The solvent used, DMSO, is well known, but not especially inexpensive.
This fits best as a final disposal method. You remove them from water by treatment with activated carbon. That would probably be regenerated with hot water giving a more concentrated solution for treatment. You might evaporate the water to further concentrate. Then the above process to degrade the materials collected to harmless materials.
Remove it from the air before it gets into the water.
PSU
I haven’t seen any air pollution data. Use in fire fighting foam, non-stick surfaces, and antistain treatments leads to water pollution. And through that accumulation in human tissue.
I wouldn’t be surprised if activated carbon would capture from air too. It was used in gas masks during World War I.