Aeration system

Details Aeration system Aeration system

1998-03-04

2000-06-13

Lithgow, Thomas M.

Liquid purification or separation

Recirculation

210205, 210220, 2102212, 261 28, 261 93, 415116, 415117, C02F 124, B01F 512, B01F 516, F04D 3100

Patent

active

060745541

ABSTRACT:
A system for dissolved air floatation treatment of a liquid stream where the system includes a pump having an impeller cavity with input and output ports, and an impeller with an eye disposed adjacent the input port. The impeller draws liquid through the input port and drives the liquid toward the output port and creates a subatmospheric pressure zone in the cavity away from the eye. The pump includes an air introduction port opening into the subatmospheric zone to introduce significant quantities of air into the cavity for mixing with the liquid stream. The system also includes a tank adapted to receive the liquid stream from the pump with dissolved air introduced therein.

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