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

1986-10-08

1987-09-01

Wyse, Tom

Liquid purification or separation

Processes

Treatment by living organism

210220, 261 77, 261DIG75, C02F 320

Patent

active

046907645

ABSTRACT:
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 discharging 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.

REFERENCES:
patent: 3853271 (1974-12-01), Freshour et al.
patent: 4019983 (1977-04-01), Mandt
patent: 4162970 (1979-07-01), Zlokarnik et al.
patent: 4162971 (1979-07-01), Zlokarnik et al.
patent: 4224158 (1980-09-01), Molvar
patent: 4226719 (1980-10-01), Woltman
patent: 4308138 (1981-12-01), Woltman
patent: 4645603 (1987-02-01), Frankl

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