Concentration of hydrogen peroxide generated by gliding arc discharge and inactivation of E. coli in water

  • Hyoung Sup Kim
  • , Kamau C. Wright
  • , In Whan Hwang
  • , Dong Hwan Lee
  • , Alexander Rabinovich
  • , Alexander Fridman
  • , Y. I. Cho*
  • *Corresponding author for this work

Research output: Contribution to journalJournal articlepeer-review

Abstract

The ability of a GA discharge to produce hydrogen peroxide (H2O2), a potent oxidizer, was investigated to evaluate the optimum operational condition of the GA discharge for bacterial inactivation. The concentration of H2O2 was measured in liquid phase, and its effective residual time was evaluated in a 200-W GA discharge system at different air and water flow rates. The concentration of H2O2 was the highest at the least water flow rate. In addition, a 5-log reduction in the colony forming unit (cfu) number of E. coli was observed at a H2O2 concentration of 100mg/L in water.

Original languageEnglish
Pages (from-to)5-10
Number of pages6
JournalInternational Communications in Heat and Mass Transfer
Volume42
DOIs
StatePublished - 2013.03

Keywords

  • Bacterial inactivation
  • E. coli
  • Gliding arc discharge
  • Hydrogen peroxide

Quacquarelli Symonds(QS) Subject Topics

  • Engineering - Chemical
  • Physics & Astronomy

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