scholarly journals Electric and Spectroscopic Studies of Pulsed Corona Discharges in Nitrogen at Atmospheric Pressure

2017 ◽  
Vol 07 (03) ◽  
pp. 57-74
Author(s):  
Alyen Abahazem ◽  
Nofel Merbahi ◽  
Hasna Guedah ◽  
Mohammed Yousfi
Keyword(s):  
Atmospheric Pressure ◽  
Spectroscopic Studies ◽  
Corona Discharges ◽  
Pulsed Corona ◽  
Pulsed Corona Discharges

Combined Optical and Electrical Measurements on Pulsed Corona Discharges

1994 ◽  
pp. 609-615 ◽  
Author(s):  
P. P. M. Blom ◽  
C. Smit ◽  
R. H. P. Lemmens ◽  
E. J. M. van Heesch
Keyword(s):  
Electrical Measurements ◽  
Corona Discharges ◽  
Pulsed Corona ◽  
Pulsed Corona Discharges

Pulsed underwater corona discharges as a source of strong oxidants: •OH and H2O2

2007 ◽  
Vol 55 (12) ◽  
pp. 7-12 ◽  
Author(s):  
S.B. Gupta ◽  
H. Bluhm
Keyword(s):  
Advanced Oxidation Process ◽  
Water Disinfection ◽  
Diagnostic Methods ◽  
Oh Radicals ◽  
Corona Discharges ◽  
Pulsed Corona ◽  
Low Degree ◽  
Non Thermal Plasma ◽  
Pulsed Corona Discharges

Because of undesirable side effects of chemical methods pulsed underwater corona discharges are emerging as a potential future advanced oxidation process (AOP) for water disinfection. In pulsed corona discharges a discharge channel is created, which contains a non-thermal plasma with a low degree of ionisation and low electron densities. but with electron energies of up to 10 eV. It has been demonstrated that electrons with this energy can dissociate water and oxygen molecules and produce various reactive radicals (•OH, H•, O•, HO•2), molecular species (H2O2, H2, O2), ultraviolet radiation and shock waves. It is supposed that the combination of all effects leads to a very efficient killing of microorganisms. To understand this in detail and to improve the efficiency of the overall system there is the need to develop suitable diagnostic methods for the quantitative determination of the various oxidants produced during the discharge. In this paper we present preliminary experimental results obtained with different chemical probes for •OH radicals, and H2O2 produced by pulsed corona discharges.

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