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Abstract

An electrophoretic purifying system employing a gas/bubble filter is described, with the gas/bubble filter disposed in the path of a single phase liquid flow moving toward an electrophoretic purifier. The gas/bubble filter prevents bubbles, having a predetermined diameter, from entering the electrophoretic purifier. A rotating drum electrophoretic purifier is employed in which a rotating drum is in close proximity to a repelling electrode, defining a gap therebetween. The repelling electrode may be shaped as a cylindrical trough which houses an arcuate portion of the drum. Alternatively, the interior surface of the cylindrical trough may comprise of a repelling electrode. The gap is in fluid communication with a fluid outlet of a supply tank containing liquid having contaminants. The gas/bubble filter is disposed proximate to the fluid outlet, and the liquid flows therethrough to be purified. The gas/bubble filter includes a plurality of apertures, with each of the plurality of apertures being of appropriate size to block gas bubbles having a diameter within a predetermined range. In this manner, the liquid having contaminants is introduced into the gap and is substantially free of said gas bubbles. This prevents arcing which substantially improves the filtering efficiency of the electrophoretic purifier by maintaining a constant potential across the gap.

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First Claim