Apparatus and method for producing small gas bubbles in liquids

Details Apparatus and method for producing small gas bubbles in liquids Apparatus and method for producing small gas bubbles in liquids

2007-01-09

2007-01-09

Bushey, Scott (Department: 1724)

Gas and liquid contact apparatus

Fluid distribution

Pumping

C261S076000, C261SDIG075

Reexamination Certificate

active

10795239

ABSTRACT:
An apparatus for creating microbubbles of gas in a liquid, and for using such created microbubbles to purify said liquid of undesirable materials therein. A vertical pipe member is adapted to receive a liquid-gas mixture having gas bubbles of relatively large diameter therein. A series of horizontally-extending apertures are provided to permit the pipe member to expel such liquid-gas mixture radially outwardly from such pipe member. A plug means is provided in a lowermost distal end of the pipe member, so that such liquid-gas mixture is only expelled horizontally outwardly. The expelled liquid-gas mixture may contact the sides of a containment vessel. A baffle may further be provided in such containment vessel. In a refinement of the invention, a specific relationship is further specified between the exit area of the apertures and the interior cross-sectional area of the pipe member, in order to most suitably convert the gas bubbles in such liquid-gas mixture to microbubbles of a desired small size when expelled under pressure from such pipe member via such apertures. A limitation on the aperture maximum dimension, as a function of the pipe interior cross-sectional area and outer circumference, is also disclosed. A method of converting gas bubbles in such liquid-gas mixture to gas microbubbles, and for exposing such gas microbubbles to material entrained in such liquid-gas mixture so as to permit such gas microbubbles to physically or chemically react with such materials, is further disclosed.

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