An electrocoagulation and electrooxidation treatment train to remove and degrade per- and polyfluoroalkyl substances in aqueous solution

This study examined the feasibility of a novel treatment train that combines electrocoagulation (EC) with electrooxidation (EO) to remove and degrade per- polyfluoroalkyl substances (PFASs) from water. Electrocoagulation zinc anode could effectively PFASs water, long-chain (C7–C10) tended have higher removal rate. Foam was generated when relatively high current density (>1 mA cm?2) applied PFAS concentration (each > 0.1 ?M) during EC, which promoted separation bulk solution, especially for PFASs. Isotherm-like adsorption results indicated competitive on floc occurred between no foam produced in solution containing 10 different Acid dissolution methods recover concentrate controlled volumes both foam, it also successfully groundwater collected contaminated site. The concentrated acid solutions were efficiently destructed using EO Ti4O7 at cm?2, supplement electrolyte needed dissolved solution. electrochemical-based process can economically separate, destroy wastewater.