Effects of pulse frequency of input power on the physical and chemical properties of pulsed streamer discharge plasmas in water

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F13%3A00421971" target="_blank" >RIV/61389021:_____/13:00421971 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1088/0022-3727/46/12/125202" target="_blank" >http://dx.doi.org/10.1088/0022-3727/46/12/125202</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/0022-3727/46/12/125202" target="_blank" >10.1088/0022-3727/46/12/125202</a>

Result language
angličtina
Original language name
Effects of pulse frequency of input power on the physical and chemical properties of pulsed streamer discharge plasmas in water
Original language description
Positive high-voltage pulses of 20 kV with repetition rates of up to 1 kHz were used to generate discharge in water using point-to-plane electrode geometry.By varying the pulse repetition rate, two distinct modes of discharge plasma were formed in water.The first was characterized by the formation of corona-like discharge propagating through the water in the form of streamer channels.The second mode was formed typically above 500 Hz, when the formation of streamer channels in water was suppressed and all plasma occurred inside a spheroidal aggregate of very fine gas bubbles surrounding the tip of the high-voltage electrode.The production of H2O2, degradation of organic dye Acid Orange 7, and inactivation of bacteria E. coli by the discharge were determined under different plasma modes in dependence with the pulse repetition rate.The efficiency of both chemical and biocidal processes induced by plasma in water decreased significantly using pulse repetition rates above 500 Hz.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BL - Plasma physics and discharge through gases
OECD FORD branch
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Project
<a href="/en/project/GD104%2F09%2FH080" target="_blank" >GD104/09/H080: Plasmachemical processes and their technological applications</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2013
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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