Stability and energy efficiency of pulsed corona discharge in treatment of dispersed high-conductivity aqueous solutions

Abstract

Pulsed corona discharge (PCD) is an energy-efficient method of water treatment, although its instability in treatment of conductive solutions showered onto the electrodes presents a problem. The impact of conductivity and gaseous ozone concentration on the discharge stability and the energy transfer efficiency was established. The discharge was stabilized by adjusting the voltage pulse shape. Energy dissipation increases with the treated solution conductivity due to ohmic losses reaching 30% of the energy delivered to the reactor at 45 mS cm⁻¹. The PCD energy efficiency and safety was improved by the modified electrode system design reducing the losses.

Original language	English
Pages (from-to)	42-50
Number of pages	9
Journal	Journal of Electrostatics
Volume	89
DOIs	https://doi.org/10.1016/j.elstat.2017.07.001
Publication status	Published - 1 Oct 2017

Keywords

Electrolyte conductivity
Energy transfer
Gas-phase electric discharge
Oxidation
Ozone
Pulse energy

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.2017.07.001

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title = "Stability and energy efficiency of pulsed corona discharge in treatment of dispersed high-conductivity aqueous solutions",

abstract = "Pulsed corona discharge (PCD) is an energy-efficient method of water treatment, although its instability in treatment of conductive solutions showered onto the electrodes presents a problem. The impact of conductivity and gaseous ozone concentration on the discharge stability and the energy transfer efficiency was established. The discharge was stabilized by adjusting the voltage pulse shape. Energy dissipation increases with the treated solution conductivity due to ohmic losses reaching 30% of the energy delivered to the reactor at 45 mS cm−1. The PCD energy efficiency and safety was improved by the modified electrode system design reducing the losses.",

keywords = "Electrolyte conductivity, Energy transfer, Gas-phase electric discharge, Oxidation, Ozone, Pulse energy",

author = "Iakov Kornev and Filipp Saprykin and Sergei Preis",

year = "2017",

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doi = "10.1016/j.elstat.2017.07.001",

language = "English",

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AU - Kornev, Iakov

AU - Saprykin, Filipp

AU - Preis, Sergei

PY - 2017/10/1

Y1 - 2017/10/1

N2 - Pulsed corona discharge (PCD) is an energy-efficient method of water treatment, although its instability in treatment of conductive solutions showered onto the electrodes presents a problem. The impact of conductivity and gaseous ozone concentration on the discharge stability and the energy transfer efficiency was established. The discharge was stabilized by adjusting the voltage pulse shape. Energy dissipation increases with the treated solution conductivity due to ohmic losses reaching 30% of the energy delivered to the reactor at 45 mS cm−1. The PCD energy efficiency and safety was improved by the modified electrode system design reducing the losses.

AB - Pulsed corona discharge (PCD) is an energy-efficient method of water treatment, although its instability in treatment of conductive solutions showered onto the electrodes presents a problem. The impact of conductivity and gaseous ozone concentration on the discharge stability and the energy transfer efficiency was established. The discharge was stabilized by adjusting the voltage pulse shape. Energy dissipation increases with the treated solution conductivity due to ohmic losses reaching 30% of the energy delivered to the reactor at 45 mS cm−1. The PCD energy efficiency and safety was improved by the modified electrode system design reducing the losses.

KW - Electrolyte conductivity

KW - Energy transfer

KW - Gas-phase electric discharge

KW - Oxidation

KW - Ozone

KW - Pulse energy

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