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

V. Luvita, A. T. Sugiarto, S. Bismo

Research output: Contribution to journalArticlepeer-review

Abstract

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.

Original languageEnglish
Pages (from-to)246-257
Number of pages12
JournalSouth African Journal of Chemical Engineering
Volume40
DOIs
Publication statusPublished - Apr 2022

Keywords

  • Dielectric barrier discharge
  • Nanobubble
  • Ozone
  • Plasma
  • Reactor

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