Numerical Modelling and Simulation of Chemical Reactions in a Nano-Pulse Discharged Bubble for Water Treatment

Yuchen He, Satoshi Uehara, Hidemasa Takana, Hideya Nishiyama

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

A zero-dimensional model to simulate a nano-pulse-discharged bubble in water was developed. The model consists of gas and liquid phases corresponding to the inside and outside of the bubble, respectively. The diffusions of chemical species from the gas to the liquid phase through the bubble interface was also investigated. The initial gas is Ar, but includes a little H2O and O2 in the bubble. The time evolution of the OH concentration in the liquid phase was mainly investigated as an important species for water treatment. It was shown that OH was generated in the bubble and then diffused into the liquid. With the application of a continuous nano-pulse discharge, more OH radicals were generated as the frequency increased at a low voltage for a given power consumption.

Original languageEnglish
Pages (from-to)924-932
Number of pages9
JournalPlasma Science and Technology
Volume18
Issue number9
DOIs
Publication statusPublished - 2016 Sep

Keywords

  • bubble discharge
  • chemical reaction model
  • diffusion
  • water purification

ASJC Scopus subject areas

  • Condensed Matter Physics

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