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

R&D Laboratory for Clean Water

Research output: Contribution to journal › Article

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 language	English
Pages (from-to)	82-86
Number of pages	5
Journal	Journal of Electrostatics
Volume	98
DOIs	https://doi.org/10.1016/j.elstat.2019.03.001
Publication status	Published - 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

Cite this

Wang, Y. X., Kornev, I., Wei, C. H., & Preis, S. (2019). Surfactant and non-surfactant radical scavengers in aqueous reactions induced by pulsed corona discharge treatment. Journal of Electrostatics, 98, 82-86. https://doi.org/10.1016/j.elstat.2019.03.001

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AU - Preis, Sergei

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KW - Bicarbonate

KW - Electric discharge

KW - Energy efficiency

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KW - Oxalic acid

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Access to Document

10.1016/j.elstat.2019.03.001