Practical But Not Yet Perfect—Pursuit of Lower-Cost PFAS Removal

Appearing in the current issue of Chemosphere, this article presents early-phase research assessing whether the use of inexpensive lead-acid battery materials in electrochemical advanced oxidation processes may hold promise for more economical on-site PFAS-containing water treatment. The reported incomplete defluorination leaves open uncertainties about adsorption and off-gassing as well as linear and branched intermediate PFAS byproducts, which have challenged many. Nonetheless, we applaud these investigators and others pursuing practical innovation.