NDLI: Steady-State Corona Discharges in Atmospheric Air for Cleaning and Decontamination

Content Provider	IEEE Xplore Digital Library
Author	Sirui Li Timoshkin, I.V. Maclean, M. MacGregor, S.J. Wilson, M.P. Given, M.J. Anderson, J.G. Tao Wang
Copyright Year	1973
Abstract	It is shown that high-voltage corona discharges in atmospheric air have significant potential for bacterial inactivation. Neutral reactive oxygen and nitrogen species and ions generated by the corona discharges act upon the target liquid or solid surfaces and produce chemical or biological effects. The concentration of ions and reactive species including ozone generated by these discharges defines the efficiency of the corona treatment. In this paper, the chemical (oxidation) effect of direct corona discharges (where ions act upon the target surface) and indirect corona discharges (where ions are screened by a grounded metallic mesh) in atmospheric air is studied by measuring the degree of decolorization of a blue dye dissolved in water. The biological effects of the direct and indirect discharges are studied by observing the degree of bacterial inactivation of gram-negative and gram-positive microorganisms, Escherichia coli and Staphylococcus aureus, seeded on agar plates. The relationship between the ozone concentration and biological efficiency of the corona treatment is evaluated. The obtained results can be used for optimization of cleaning and inactivation treatment processes based on the use of nonthermal plasma produced under dc energization conditions.
Sponsorship	IEEE Nuclear and Plasma Sciences Society
Starting Page	2871
Ending Page	2878
Page Count	8
File Size	717897
File Format	PDF
ISSN	00933813
Volume Number	41
Issue Number	10
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Corona Discharges (electric) Microorganisms Gases Surface treatment Electrodes Chemicals corona discharges Bactericidal effects
Content Type	Text
Resource Type	Article
Subject	Nuclear and High Energy Physics Condensed Matter Physics

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