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

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

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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10.1016/j.elstat.2019.03.001

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@article{227eba7d0ec54b7eb81378cb2133230c,

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

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.",

keywords = "Advanced oxidation, Bicarbonate, Electric discharge, Energy efficiency, Humic substances, Oxalate, Oxalic acid, Phenol, Plasma, Water treatment",

author = "Wang, {Yi Xian} and Iakov Kornev and Wei, {Chao Hai} and Sergei Preis",

year = "2019",

month = mar,

day = "1",

doi = "10.1016/j.elstat.2019.03.001",

language = "English",

volume = "98",

pages = "82--86",

journal = "Journal of Electrostatics",

issn = "0304-3886",

publisher = "Elsevier",

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TY - JOUR

T1 - Surfactant and non-surfactant radical scavengers in aqueous reactions induced by pulsed corona discharge treatment

AU - Wang, Yi Xian

AU - Kornev, Iakov

AU - Wei, Chao Hai

AU - Preis, Sergei

PY - 2019/3/1

Y1 - 2019/3/1

N2 - 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.

AB - 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.

KW - Advanced oxidation

KW - Bicarbonate

KW - Electric discharge

KW - Energy efficiency

KW - Humic substances

KW - Oxalate

KW - Oxalic acid

KW - Phenol

KW - Plasma

KW - Water treatment

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DO - 10.1016/j.elstat.2019.03.001

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VL - 98

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EP - 86

JO - Journal of Electrostatics

JF - Journal of Electrostatics

SN - 0304-3886

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