The Influence of Parameters of Stabilized Corona Discharge on its Microbicidal Effect
V. Scholtza, L. Kommováa and J. Julákb
aDepartment of Physics and Measurements, Faculty of Chemical Engineering, Institute of Chemical Technology, in Prague, Technická 5, 166 28, Praha, Czech Republic
bInstitute of Immunology and Microbiology, 1st Faculty of Medicine, Charles University in Prague, Studničkova 7, 128 00, Praha, Czech Republic
Received: July 16, 2010; in final form: January 31, 2011
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This work presents the study of microbicidal effects of positive flashing corona, negative pulseless corona and glow corona discharges and the comparison of their efficiency in the point-to-plane arrangement in water suspension. The flashing corona seems to be the most effective one, however the interval of optimal parameters is wide. The total inhibition of microorganisms becomes after 75 s or 8-10 min of exposition for bacteria or yeast, respectively. A hypothesis explaining the different sensitivity of various microbes is postulated.
DOI: 10.12693/APhysPolA.119.803
PACS numbers: 52.77.-j, 52.27.Lw