Formation of reactive species in gliding arc discharges with liquid water

Abstract The effects of gas composition on gliding arc (glidarc) electrical discharge reactors with pure water have been studied. The glidarc reactors utilized AC electrical discharges with two different electrode configurations. In one case a set of two stainless steel electrodes connected to a single power supply was placed in the gas phase over the liquid surface (power=250–300 W, maximum voltage=12 kV). The second experimental arrangement utilized a reactor with a set of three stainless steel electrodes supplied by two identical high-voltage transformers, where the electrodes were placed over the water surface or with the water sprayed directly in the plasma formed between the electrodes (power=500–600 W, maximum voltage=12 kV). The variation of pH and conductivity and the formation of hydrogen peroxide, ozone, nitrate, and hydrogen were measured. The effects of the type of gas, including pure oxygen, pure nitrogen, and dry air, were determined.

[1]  Alexei V. Saveliev,et al.  Thermal and nonthermal regimes of gliding arc discharge in air flow , 2000 .

[2]  A. Fridman,et al.  Gliding arc gas discharge , 1999 .

[3]  T. Takarada,et al.  Improvement of NOx removal efficiency using atomization of fine droplets into corona discharge , 2002 .

[4]  T. Dolan.  Electron and ion collisions with water vapour , 1993 .

[5]  W. C. Finney,et al.  Organic dye removal from aqueous solution by glidarc discharges , 2004 .

[6]  A. E. Greenberg,et al.  Standard methods for the examination of water and wastewater : supplement to the sixteenth edition , 1988 .

[7]  R. Peyrous,et al.  The Effect of Relative Humidity on Ozone Production by Corona Discharge in Oxygen or Air – A Numerical Simulation – Part I : Oxygen , 1990 .

[8]  F. Richard,et al.  Heat string model of bi-dimensional dc Glidarc , 2000 .

[9]  Zygmunt Kowalski,et al.  Synthesis of the ettringite containing chromium(III) and chromium(VI) , 2002 .

[10]  W. C. Finney,et al.  Chemical Reaction Kinetics and Reactor Modeling of NOx Removal in a Pulsed Streamer Corona Discharge Reactor , 1999 .

[11]  A. Hickling,et al.  Electrochemical Processes in Glow Discharge at the Gas-Solution Interface , 1971 .

[12]  Ahmed Addou,et al.  Density and Rotational Temperature Measurements of the OH° and NO° Radicals Produced by a Gliding Arc in Humid Air , 2002 .

[13]  Brian E. Conway,et al.  Modern Aspects of Electrochemistry , 1974 .

[14]  F. Richard,et al.  Determination of the electrical parameters of a bi-dimensional d.c. Glidarc , 1999 .

[15]  F. Richard,et al.  Physical study of a gliding arc discharge , 1996 .

[16]  A. Czernichowski,et al.  Gliding arc: Applications to engineering and environment control , 1994 .

[17]  P. Lukeš,et al.  Hydrogen peroxide and ozone formation in hybrid gas-liquid electrical discharge Reactors , 2004, IEEE Transactions on Industry Applications.

[18]  Yukio Aoki,et al.  Removal of NOx by DC corona reactor with water , 2001 .

[19]  J. Brisset,et al.  Disposal of spent tributylphosphate by gliding arc plasma. , 2003, Journal of hazardous materials.

[20]  Bruce R. Locke,et al.  Hydrogen, Oxygen, and Hydrogen Peroxide Formation in Aqueous Phase Pulsed Corona Electrical Discharge , 2005 .

[21]  K. Krawczyk,et al.  Combined plasma-catalytic processing of nitrous oxide , 2001 .

[22]  Ahmed Addou,et al.  Plasma treatment of aqueous solutes: Some chemical properties of a gliding arc in humid air , 1998 .

[23]  Farhataziz,et al.  Radiation Chemistry: Principles and Applications , 1987 .

[24]  A. Lichtenberg,et al.  Principles of Plasma Discharges and Materials Processing , 1994 .

[25]  Jens Ulstrup,et al.  Kinetics of Proton Transport in Water , 2003 .

[26]  J. Janca,et al.  Investigation of the Chemical Action of the Gliding and “Point” Arcs Between the Metallic Electrode and Aqueous Solution , 1999 .