PFAS electrochemical degradation

Ion exchange is one of the main technologies available to ensure compliance with PFAS concentration limits in drinking water supply in the European Union. However, ion exchange generates a treatment residue, which can be the PFAS-laden resin itself, or the regeneration stream. In this research, the treatment of ion exchange regenerating fluids through the electrochemical degradation of PFAS will be studied in the laboratory. The experimental study will consider the effect of chemical variables, such as the composition of the ion exchange regeneration fluid, process variables, such as the applied current density and cell voltage, making use of advanced analytical techniques (HPLC-HRMS, ion exchange chromatography, TOC) to follow PFAS degradation rate.