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Plasmachemical Oxidation Processes in Hybrid Gas-Liquid Electrical Discharge Reactor
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SYSNO ASEP 0025668 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Plasmachemical Oxidation Processes in Hybrid Gas-Liquid Electrical Discharge Reactor Author(s) Lukeš, Petr (UFP-V) RID, ORCID
Locke, B.R. (US)Source Title Journal of Physics D-Applied Physics. - : Institute of Physics Publishing - ISSN 0022-3727
Roč. 38, č. 22 (2005), s. 4074-4081Number of pages 8 s. Language eng - English Country GB - United Kingdom Keywords Corona discharge ; hybrid reactor ; hydroxyl radical ; ozone ; phenol ; water treatment Subject RIV BL - Plasma and Gas Discharge Physics CEZ AV0Z20430508 - UFP-V (2005-2011) UT WOS 000233792200011 DOI https://doi.org/10.1088/0022-3727/38/22/010 Annotation Oxidation processes induced in water by pulsed electrical discharges generated simultaneously in the gas phase in close proximity to the water surface and directly in the liquid were investigated in a hybrid series gas-liquid electrical discharge reactor. The mechanism of phenol degradation was studied through its dependence on the gas phase and liquid phase compositions using pure argon and oxygen atmospheres above the liquid and different initial pH values in the aqueous solution. Phenol degradation was significantly enhanced in the hybrid-series reactor compared to the phenol removal by the single-liquid phase discharge reactor. Under an argon atmosphere the mechanism of phenol degradation was mainly caused by the electrophilic attack of OH· radicals produced by the liquid phase discharge directly in water and OH· radicals produced by the gas phase discharge at the gas-liquid interface. Workplace Institute of Plasma Physics Contact Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Year of Publishing 2012
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