Direct Destruction of PFAS and Other Recalcitrant Contaminants on Filtration Media via Non-Equilibrium Plasma

Per- and polyfluoroalkyl substances (PFAS) are persistent environmental contaminants requiring innovative treatment solutions. This project focuses on developing a dielectric barrier discharge (DBD) plasma system for the on-site regeneration of granular activated carbon (GAC) contaminated with PFAS. The plasma system not only regenerates GAC but also destroys adsorbed PFAS, eliminating the need for energy-intensive thermal reactivation methods or waste disposal in landfills. The proposed approach involves optimizing key plasma parameters, such as voltage, frequency, and residence time, to achieve efficient PFAS decomposition. Additionally, the system design enables continuous processing on a conveyor belt, ensuring scalability for industrial applications. The research integrates advanced diagnostics, process optimization, and digital modeling to address challenges in PFAS removal and GAC reactivation. By reducing energy consumption and waste, the DBD plasma system offers a sustainable alternative to conventional methods, addressing regulatory requirements and environmental concerns. Collaborating with Temple University, the project incorporates expertise in plasma system development and PFAS analysis to validate the destruction efficacy and operational efficiency of the proposed system. This technology aims to establish new industry standards, support EPA compliance, and reduce operational costs for water treatment facilities, enhancing the United States' capacity to tackle PFAS contamination sustainably.