Pulsed periodic corona discharges for biological decontamination

Igor Timoshkin; Michelle Maclean; Scott Macgregor; John Anderson; Mark Wilson; Tao Wang; M Given

doi:10.1109/PPC.2011.6191573

Pulsed periodic corona discharges for biological decontamination

Igor Timoshkin, Michelle Maclean, Scott Macgregor, John Anderson, Mark Wilson, Tao Wang, M Given

Electronic And Electrical Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution book

Abstract

The present paper explores the possibilities of using impulsive and steady-state corona discharges for bio-decontamination operations. A high tension tubular corona electrode was stressed with positive or negative DC voltage with magnitude up to 26 kV, and a grounded mesh was used as an opposite electrode. Different operational regimes of this corona generator were investigated for the production of ozone in air flow and the inactivation of microorganisms. The test microorganism used in this work was E. coli. The results show that corona-generated ozone, and potentially other chemical species, have a strong bactericidal effect, for example positive flashing corona discharges were able to reduce populations of the test microorganism by ~95% within a 30-60 sec time interval. The bactericidal efficiency of different corona discharge modes and its correlation with ozone levels is discussed. The results obtained in this work will help in the design and development of compact plasma systems for environmental applications.

Original language	English
Title of host publication	IEEE conference record PPC2011
Subtitle of host publication	pulsed power conference 2011
Place of Publication	New York
Publisher	IEEE
Pages	1155-1159
Number of pages	5
ISBN (Print)	9781457706295
DOIs	https://doi.org/10.1109/PPC.2011.6191573
Publication status	Published - 2011
Event	18th IEEE International Pulsed Power Conference - Chicago, United States Duration: 19 Jun 2011 → 23 Jun 2011

Conference

Conference	18th IEEE International Pulsed Power Conference
Country/Territory	United States
City	Chicago
Period	19/06/11 → 23/06/11

Keywords

corona discharges
biological decontamination
impulsive
steady-state
tubular corona electrode
DC voltage
corona generator
compact plasma systems
corona-generated ozone

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10.1109/PPC.2011.6191573

Cite this

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title = "Pulsed periodic corona discharges for biological decontamination",

abstract = "The present paper explores the possibilities of using impulsive and steady-state corona discharges for bio-decontamination operations. A high tension tubular corona electrode was stressed with positive or negative DC voltage with magnitude up to 26 kV, and a grounded mesh was used as an opposite electrode. Different operational regimes of this corona generator were investigated for the production of ozone in air flow and the inactivation of microorganisms. The test microorganism used in this work was E. coli. The results show that corona-generated ozone, and potentially other chemical species, have a strong bactericidal effect, for example positive flashing corona discharges were able to reduce populations of the test microorganism by ~95% within a 30-60 sec time interval. The bactericidal efficiency of different corona discharge modes and its correlation with ozone levels is discussed. The results obtained in this work will help in the design and development of compact plasma systems for environmental applications.",

keywords = "corona discharges , biological decontamination, impulsive , steady-state, tubular corona electrode, DC voltage, corona generator, compact plasma systems, corona-generated ozone",

author = "Igor Timoshkin and Michelle Maclean and Scott Macgregor and John Anderson and Mark Wilson and Tao Wang and M Given",

year = "2011",

doi = "10.1109/PPC.2011.6191573",

language = "English",

isbn = "9781457706295",

pages = "1155--1159",

booktitle = "IEEE conference record PPC2011",

publisher = "IEEE",

note = "18th IEEE International Pulsed Power Conference ; Conference date: 19-06-2011 Through 23-06-2011",

}

Timoshkin, I , Maclean, M , Macgregor, S , Anderson, J , Wilson, M , Wang, T & Given, M 2011, Pulsed periodic corona discharges for biological decontamination. in IEEE conference record PPC2011 : pulsed power conference 2011. IEEE, New York, pp. 1155-1159, 18th IEEE International Pulsed Power Conference, Chicago, United States, 19/06/11. https://doi.org/10.1109/PPC.2011.6191573

TY - GEN

T1 - Pulsed periodic corona discharges for biological decontamination

AU - Timoshkin, Igor

AU - Maclean, Michelle

AU - Macgregor, Scott

AU - Anderson, John

AU - Wilson, Mark

AU - Wang, Tao

AU - Given, M

PY - 2011

Y1 - 2011

N2 - The present paper explores the possibilities of using impulsive and steady-state corona discharges for bio-decontamination operations. A high tension tubular corona electrode was stressed with positive or negative DC voltage with magnitude up to 26 kV, and a grounded mesh was used as an opposite electrode. Different operational regimes of this corona generator were investigated for the production of ozone in air flow and the inactivation of microorganisms. The test microorganism used in this work was E. coli. The results show that corona-generated ozone, and potentially other chemical species, have a strong bactericidal effect, for example positive flashing corona discharges were able to reduce populations of the test microorganism by ~95% within a 30-60 sec time interval. The bactericidal efficiency of different corona discharge modes and its correlation with ozone levels is discussed. The results obtained in this work will help in the design and development of compact plasma systems for environmental applications.

AB - The present paper explores the possibilities of using impulsive and steady-state corona discharges for bio-decontamination operations. A high tension tubular corona electrode was stressed with positive or negative DC voltage with magnitude up to 26 kV, and a grounded mesh was used as an opposite electrode. Different operational regimes of this corona generator were investigated for the production of ozone in air flow and the inactivation of microorganisms. The test microorganism used in this work was E. coli. The results show that corona-generated ozone, and potentially other chemical species, have a strong bactericidal effect, for example positive flashing corona discharges were able to reduce populations of the test microorganism by ~95% within a 30-60 sec time interval. The bactericidal efficiency of different corona discharge modes and its correlation with ozone levels is discussed. The results obtained in this work will help in the design and development of compact plasma systems for environmental applications.

KW - corona discharges

KW - biological decontamination

KW - impulsive

KW - steady-state

KW - tubular corona electrode

KW - DC voltage

KW - corona generator

KW - compact plasma systems

KW - corona-generated ozone

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DO - 10.1109/PPC.2011.6191573

M3 - Conference contribution book

SN - 9781457706295

SP - 1155

EP - 1159

BT - IEEE conference record PPC2011

PB - IEEE

CY - New York

T2 - 18th IEEE International Pulsed Power Conference

Y2 - 19 June 2011 through 23 June 2011

ER -

Pulsed periodic corona discharges for biological decontamination

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Keywords

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