Water treatment by dielectric barrier discharge tube with vapor flow

T. Shibata, H. Nishiyama

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


Non-thermal plasma technologies with water vapor have been developed for a wide range of applications. In this study, a water treatment which introduces a vaporized solution into a coaxial dielectric barrier discharge (DBD) tube using Ar was investigated experimentally. To clarify the organic decomposition characteristics, acetic acid was decomposed by this treatment. A diluted acetic acid solution was vaporized by a water vaporizer in advance and introduced into the DBD tube. The residence time of the water vapor introduced into the discharge area in a DBD tube was approximately 6-8 ms. Acetic acid was effectively decomposed and the decomposition ratio reached almost 70% for small water flow rate, despite the short residence time, which is superior to the mist plasma treatment.

Original languageEnglish
Pages (from-to)112-117
Number of pages6
JournalInternational Journal of Plasma Environmental Science and Technology
Issue number1
Publication statusPublished - 2017


  • DBD tube
  • Organic pollutants
  • Vapor flow
  • Water treatment

ASJC Scopus subject areas

  • Environmental Science(all)


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