Surfactant and non-surfactant radical scavengers in aqueous reactions induced by pulsed corona discharge treatment

Yi Xian Wang, Iakov Kornev, Chao Hai Wei, Sergei Preis

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The choice of energy input rate in treatment of aqueous media with gas-phase pulsed corona discharge (PCD) requires quantification of reactive oxygen species (ROS) reactions dependent on oxidation kinetics. The role of surfactant and non-surfactant OH-radical scavengers in PCD was studied in respect of oxidation of phenol, oxalic and humic acid. Phenol reacts fast, whereas oxalate is known to selectively react with OH-radicals. Humic acid oxidation is slow. Rapid energy intake is advised for oxidation induced exclusively by radical reactions, such as humics, whereas abatement of admixtures reacting with both surface-borne and long-living oxidants benefits from reduced pulse repetition frequency.

Original languageEnglish
Pages (from-to)82-86
Number of pages5
JournalJournal of Electrostatics
Volume98
DOIs
Publication statusPublished - 1 Mar 2019

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Keywords

  • Advanced oxidation
  • Bicarbonate
  • Electric discharge
  • Energy efficiency
  • Humic substances
  • Oxalate
  • Oxalic acid
  • Phenol
  • Plasma
  • Water treatment

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Biotechnology
  • Condensed Matter Physics
  • Surfaces, Coatings and Films
  • Electrical and Electronic Engineering

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