High Power DC Diaphragm Discharge Excited in a Vapor Bubble for the Treatment of Water

0394326 - ÚFP 2014 RIV US eng J - Journal Article
Lukeš, Petr - Člupek, Martin - Babický, Václav - Doležalová, Eva - Sisrová, Irena - Maršálková, Eliška - Maršálek, Blahoslav
High Power DC Diaphragm Discharge Excited in a Vapor Bubble for the Treatment of Water.
Plasma Chemistry and Plasma Processing. Roč. 33, č. 1 (2013), s. 83-95. ISSN 0272-4324. E-ISSN 1572-8986
R&D Projects: GA AV ČR IAAX00430802; GA ČR(CZ) GD104/09/H080
Institutional support: RVO:61389021 ; RVO:67985939
Keywords : Diaphragm discharge * Water * Hydrogen peroxide * Phenol * Bacteria * Algae
Subject RIV: BL - Plasma and Gas Discharge Physics; EF - Botanics (BU-J)
Impact factor: 1.599, year: 2013
http://link.springer.com/content/pdf/10.1007%2Fs11090-012-9432-6.pdf

Novel apparatus for the generation of underwater plasma based on DC diaphragm discharge excited in a vapor bubble has been developed for decontamination and disinfection of conductive water. The apparatus allows deposition of relatively high applied power into the discharge (order of kW) and the treatment of a relatively large volume of liquid (order of L/min). The apparatus is operated at the quasi-pulse regime with self-terminating discharge pulses (with a repetition rate of 15–20 Hz) generated upon the formation of the vapor bubble inside the diaphragm (capillary) and its subsequent breakdown. The effects of input power, solution conductivity and the method of liquid flow through the reactor on the plasmachemical yield of H2O2 production and degradation of phenol have been determined.The biocidal effects of the apparatus were evaluated on inactivation of bacteria E. coli and E. faecalis and on growth inhibition of the cyanobacterium Planktothrix sp.
Permanent Link: http://hdl.handle.net/11104/0222581