Liquid purification or separation – Processes – Treatment by living organism
Patent
1986-10-07
1988-06-07
Castel, Benoit
Liquid purification or separation
Processes
Treatment by living organism
210758, 210150, 210169, 210220, 261 91, 261 94, 261120, 261DIG72, C02F 304, C02F 700
Patent
active
047494930
ABSTRACT:
A method and apparatus for oxygenating water in an aquaculture system without adding nitrogen or other possibly harmful gases. A columnar housing floats in the aquaculture pond on a float ring with a submersible pump immersed in the pond. The pump draws in water and pumps it to the top of an oxygenation chamber which is packed with a surface expansion medium. The oxygenation chamber is filled with oxygen which is transferred to the water falling through the chamber. The oxygenated water is returned to the pond through outlet ports at the bottom of the oxygenation chamber. A cover on the column can be removed at times to allow infiltration of air for aeration of the water.
REFERENCES:
patent: 3235234 (1966-02-01), Beaudoin
patent: 3966608 (1976-06-01), Mason et al.
patent: 3972965 (1976-08-01), Higgins
patent: 4439316 (1984-03-01), Kozima et al.
Castel Benoit
Saccocio Richard M.
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