Patent ID: 6270063
Filing Date: 2001-08-07
Classification: B01F,C02F

Abstract:
An apparatus for diffusing a gas into a liquid, said apparatus comprising:an outer structure, having a top and a bottom;a pipe extending into the outer structure, the pipe having a gas input port to receive the gas, and having a plurality of openings along its length through which the gas may be introduced into the outer structure;a liquid input port extending into the outer structure at a location below the pipe, for introducing the liquid into the walled container; andat least a first interior wall connected to the bottom of the outer structure, for defining a first region, within which openings in the pipe are disposed so that the gas and the liquid flow in substantially the same direction, the first interior wall having an opening near the top of the outer structure over which the liquid can flow from the first region into a second region, within which openings in the pipe are disposed so that the gas and the liquid flow in substantially opposite directions.