Chemical and Physical Principles in Multiphase Separations:

Inverse Electrostatic Spraying

Recent work has shown that electric fields can be efficiently and effectively applied to generate fine droplets and bubbles of electrically nonconductive fluids, such as air or kerosene, into more conductive liquids, such as water. This phenomenon, termed inverse electrostatic spraying, extends the application set of electrically driven chemical processes and may be useful in a wide range of applications, including distillation ( Electodistillation ); aeration; ozonation ( Electrostatic Ozonation); and solvent extraction.


Spraying of air in water by means of electric fields.
Applied Voltage: (a)0 V; (b) 1 kV; (c) 2 kV; (d) 3 kV; (e) 4 kV

The following papers present details on research on inverse electrostatic spraying:

"Electrostatic Spraying of Gases into Liquids"

"An Experimental Investigation of Electrostatic Spraying of Nonconductive Fluids into Conductive Fluids"

"Electrostatic Spraying of Nonconductive Fluids into Conductive Fluids"

For more information contact:

Costas Tsouris
Oak Ridge National Laboratory
P.O. Box 2008
Oak Ridge, TN 37831-6224
Phone:865-241-3246
Fax: 865-241-4829
Email: tsourisc@ornl.gov

Updated 04/00
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David W. DePaoli
Oak Ridge National Laboratory
P.O. Box 2008
Oak Ridge, TN 37831-6224
Phone:865-574-6817
Fax: 865-241-4829
E-Mail: ddi@ornl.gov