Division of Environmental Physics - User: student
Faculty of Mathematics, Physics and Informatics, Comenius University Bratislava

Chemical and bactericidal effects induced in water treated by air transient spark

Tarabová B., Tarabová K., Hensel K., Šikurová L., Machala Z.
14th High Pressure Low Temperature Plasma Chemistry Symposium (HAKONE XIV), Zinnowitz (Germany), September 21-26, p. 543-547 (2014)

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Abstract:

Chemical changes in water induced by DC transient spark discharge generated in atmospheric pressure air and related bactericidal effects were investigated. Changes of pH, conductivity and formation of reactive oxygen (ROS) and nitrogen (RNS) species were observed in aqueous solution contaminated with E. coli after treatment by water electro-spray system or water electrode system. It seems that the chemical effects were enhanced in water electrode system and the stronger bactericidal efficiency was observed in the water spray system due to the electro-spray. We found out that the indigo method for measuring ozone in water is not selective in plasma treated solutions.