Destruction of Per- and Polyfluoroalkyl Substances (PFAS) with Advanced Reduction Processes (ARPs): A Critical Review

Advanced reduction processes (ARPs) have emerged as a promising method for destruction of persistent per- and polyfluoroalkyl substances (PFAS) in water due to the generation of short-lived and highly reductive hydrated electrons (e_aq^–). This study provides a critical review on the mechanisms and performance of reductive destruction of PFAS with e_aq^–. Unique properties of e_aq^– and its generation in different ARP systems, particularly UV/sulfite and UV/iodide, are overviewed.