A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Hydrogen peroxide and ozone formation in hybrid gas-liquid electrical discharge Reactors
Ozone in the gas phase and hydrogen peroxide in the liquid phase were simultaneously formed in hybrid electrical discharge reactors, known as the hybrid-series and hybrid-parallel reactors, which utilize both gas phase nonthermal plasma formed above the water surface and direct liquid phase corona-like discharge in the water. In the series configuration the high voltage needle-point electrode is submerged and the ground electrode is placed in the gas phase above the water surface. The parallel configuration employs a high voltage electrode in the gas phase and a high voltage needle-point electrode in the liquid phase with the ground electrode placed at the gas-liquid interface. In both hybrid reactors the gas phase concentration of ozone reached a power-dependent steady state, whereas the hybrid-parallel reactor produced a substantially larger amount of ozone than the hybrid series. Hydrogen peroxide was produced in both hybrid reactors at a similar rate to that of a single-phase liquid electrical discharge reactor. The resulting concentration of H2O2 in the hybrid reactors, however, depended on the pH of the solution and the gas phase ozone concentration since H2O2 was decomposed by dissolved ozone at high pH.
Hydrogen peroxide and ozone formation in hybrid gas-liquid electrical discharge Reactors
Ozone in the gas phase and hydrogen peroxide in the liquid phase were simultaneously formed in hybrid electrical discharge reactors, known as the hybrid-series and hybrid-parallel reactors, which utilize both gas phase nonthermal plasma formed above the water surface and direct liquid phase corona-like discharge in the water. In the series configuration the high voltage needle-point electrode is submerged and the ground electrode is placed in the gas phase above the water surface. The parallel configuration employs a high voltage electrode in the gas phase and a high voltage needle-point electrode in the liquid phase with the ground electrode placed at the gas-liquid interface. In both hybrid reactors the gas phase concentration of ozone reached a power-dependent steady state, whereas the hybrid-parallel reactor produced a substantially larger amount of ozone than the hybrid series. Hydrogen peroxide was produced in both hybrid reactors at a similar rate to that of a single-phase liquid electrical discharge reactor. The resulting concentration of H2O2 in the hybrid reactors, however, depended on the pH of the solution and the gas phase ozone concentration since H2O2 was decomposed by dissolved ozone at high pH.
Hydrogen peroxide and ozone formation in hybrid gas-liquid electrical discharge Reactors
Lukes, P. (author) / Appleton, A.T. (author) / Locke, B.R. (author)
IEEE Transactions on Industry Applications ; 40 ; 60-67
2004
8 Seiten, 43 Quellen
Article (Journal)
English
Decomposition of Dioxins in Leachate by Ozone / Hydrogen Peroxide Treatment
| British Library Conference Proceedings | 2000
Enhanced VOC Absorption Using the Ozone/Hydrogen Peroxide Advanced Oxidation Process
| Taylor & Francis Verlag | 1999
Degradation of 2,4-dichlorophenoxyacetic acid in water by ozone-hydrogen peroxide process
| Online Contents | 2006
An ozone-hydrogen peroxide-microwave-enhanced advanced oxidation process for sewage sludge treatment
| Online Contents | 2007