Characterization of dielectric barrier discharge reactor with nanobubble application for industrial water treatment and depollution

The performance of wet and advanced oxidation processes is considered to have many weaknesses concerning ozone and peroxone, specifically their characteristics against persistent organic compounds, as well as nitrogen-ammonia and amine-phenolic-based compounds. This is necessary to increase and improve the performance of the utilized plasma reactor, specifically the finer bubble size, as well as the intensity and reactivity (chemical reaction barriers) of the reacting species, to have a smaller impact on mass transfer or diffusivity in polar solvents. Therefore, this study aims to analyze the hydrodynamic characterization and several tests of the most important physicochemical parameters of a prototype nanobubble plasma ozone reactor, which is a reaction vehicle integrating the synergistic effect of a cold field. This reactor was used with a nanobubble-producing nozzle in a PFR (plug flow reactor), to increase the absorption ability of the plasma by water. The results showed that the oxygen and ozone solubilities, H₂O₂ production, and the synergy of these species were strongly influenced by the electric voltage, feed gas flow rate, and the O₂ purity used in the injection system.