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United States Patent | 4,643,852 |
Koslow | February 17, 1987 |
The present invention provides an apparatus for generating gas bubbles in a liquid. The bubbles, which are uniform in size and on the order of approximately 100 micrometers in diameter or less, enhance the efficiency of gas transfer to the liquid. The apparatus includes at least one rotatable member, in the shape of a disc or ring, which is wettable by the liquid and rotatable therein at an edge velocity of at least 70 feet per second. The upper surface of the rotatable member is parallel to, and spaced from, a stationary plate to form a shear zone. Gas, or some other fluid, is supplied proximate the upper surface of the rotatable circular member to form the bubbles. Optimized relationships between the radius of the disc or ring and its speed of rotation are disclosed to enhance the efficiency of operation of the apparatus. The apparatus can be used in various applications in which it is desirable to disperse a gas or other fluid into a liquid as, for example, aeration to promote the decomposition of biological waste products or the carbonation of soft drinks.
Inventors: | Koslow; Evan E. (Westport, CT) |
Appl. No.: | 06/814,657 |
Filed: | December 30, 1985 |
Application Number | Filing Date | Patent Number | Issue Date | ||
253594 | Apr., 1981 | ||||
Current U.S. Class: | 261/93 ; 209/170; 210/219; 210/221.2; 210/703; 261/DIG.7; 366/102; 422/231 |
Current International Class: | B03D 1/14 (20060101); C02F 3/20 (20060101); B01F 3/04 (20060101); B01F 003/04 () |
Field of Search: | 261/87,93,DIG.26,DIG.7 99/323.1 210/703-707,219,220,221.1,221.2 209/169,170 435/313,315 366/279,102,107 55/95,256 252/351 422/225,231 |
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532950 | Mar., 1973 | CH | |||