Gas and liquid contact apparatus – Contact devices – Rotating
Patent
1997-07-16
1999-08-24
Bushey, C. Scott
Gas and liquid contact apparatus
Contact devices
Rotating
261 92, 261 93, 261120, 210222, 2102422, B01F 304
Patent
active
059421614
ABSTRACT:
A liquid management unit uses a) a shaft mounted disc rotor partially submerged into a liquid for introducing flow-inducing energy and air or treatment gas into the liquid, b) a first baffle for receiving liquid from below the surface of a body of liquid and directing the liquid to the rotor, and c) a second baffle for receiving treated liquid from the rotor and directing the treated liquid below said surface of the body of liquid. The rotor and baffles may be mounted in various orientations including both horizontal and vertical positions. The disc rotor and first and second baffles are mounted on a frame that is supported by pontoons. A shroud placed over the disc rotor and input and output baffles with an air passage through them form a pressurized three-point aeration system in which the input baffle pre-aerates the water to satisfy chemical oxygen demand, the disc rotor transfers additional air to the water, and the output baffle post-aerates the water to satisfy the overall oxygen demand of the liquid. The disc rotor and two baffle arrangement allow for a wide variety of applications including dredging, mixing, de-stratification, oxygenation, purification and decontamination.
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Battelle (Memorial Institute)
Bushey C. Scott
Pollick Philip J.
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