0025668 - ÚFP 2012 RIV GB eng J - Journal Article
Lukeš, Petr - Locke, B.R.
Plasmachemical Oxidation Processes in Hybrid Gas-Liquid Electrical Discharge Reactor.
Journal of Physics D-Applied Physics. Roč. 38, č. 22 (2005), s. 4074-4081. ISSN 0022-3727. E-ISSN 1361-6463
Institutional research plan: CEZ:AV0Z20430508
Keywords : Corona discharge * hybrid reactor * hydroxyl radical * ozone * phenol * water treatment
Subject RIV: BL - Plasma and Gas Discharge Physics
Impact factor: 1.957, year: 2005

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.
Permanent Link: http://hdl.handle.net/11104/0116039