Electrochemical water treatment using graphene foams

Electrochemical (waste)water treatment is typically performed using conventional two-dimensional (2D) plate-and-frame reactors. Given that electrochemical degradation of contaminants is a surface-based reaction, 2D reactor design results in high mass transfer limitations and thus high energy consumption. This energy consumption of electrochemical systems can be significantly reduced using three-dimensional (3D), flow-through reactors due to the greatly increases surface area available for electrochemical reactions and lower mass transfer limitations.

In this project, we are developing low-cost graphene foams to be used as both anode and cathode materials in flow-through electrochemical cells. We are focusing on the removal of: 1. model organic pollutants known to be persistent to oxidation, 2. per- and polyfluoroalkyl substances (PFAS), and 3. model microorganisms (spores, bacteria and virus).