A method for fixing a first fluid within a second fluid which includes the steps
of mixing the first and second fluids together and subjecting the first and second
fluids to an electric field and a high voltage corona like electric discharge.
The method can be used, for example, to increase the oxygen content of water. It
can also be used for the treatment of waste effluent. An apparatus for carrying
out the process includes a fluid passageway defined between inner and outer elongated
conduits with a preferably spirally configurated baffle means in the passageway
and a plurality of electrode needles extending into the passageway.
