Aerator and aerobic biological treatment process using same

Details Aerator and aerobic biological treatment process using same Aerator and aerobic biological treatment process using same

C - Chemistry, Metallurgy

02

F

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C02F 3/20 (2006.01) B01F 3/04 (2006.01) B01F 3/08 (2006.01) B01F 5/02 (2006.01) B01F 13/10 (2006.01) C02F 3/12 (2006.01) C02F 7/00 (2006.01)

Patent

CA 1309193

Abstract of the Disclosure This invention provides an aerator comprising a jet stream generator for ejecting a gas and a liquid in a mixed state from a nozzle, and a tubular flow straightener for mixing the bubble-containing stream ejected from the nozzle with ambient water and dis- charging the resulting mixture from the discharge orifice thereof, characterized in that the flow straightener has a tubular form whose internal diameter is reduced from the inlet toward the discharge orifice through at least a part of its length. This aerator can produce a stream containing minute gas bubbles, even when a gas is supplied thereto in such a large amount as to give a gas-to-liquid volume ratio of 3/1.

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