Apparatus for the injection of compressed air into a liquid

Details Apparatus for the injection of compressed air into a liquid Apparatus for the injection of compressed air into a liquid

1991-10-23

1994-04-19

Lithgow, Thomas M.

Liquid purification or separation

With means to add treating material

Directly applied to separator

2611222, B01F 304

Patent

active

053043014

ABSTRACT:
Apparatus for injection of compressed air into a liquid such as waste water comprises a tubular basic body surrounded by a flexible, perforated membrane through which compressed air is supplied through radial openings in the basic body to be dispersed by the perforated membrane as fine bubbles into the liquid. The basic body is connected to a compressed air supply pipe through a hollow connecting body that supports the basic body and supplies compressed air to radial openings in the basic body. In one embodiment, air-conducting passageways are arranged concentrically about the hollow connecting body. The hollow connecting body provides a flooding zone in communication with the tubular basic body and sealed from the air-conducting passageways. Liquid flows therethrough to avoid dead zones of untreated liquid. The common flooding zone provides a floodable volume relative to a non-floodable volume of greater than 1.3.

REFERENCES:
patent: 3953553 (1976-04-01), Thayer
patent: 4060486 (1977-11-01), Schreiber
patent: 4118447 (1978-10-01), Richter
patent: 4165286 (1979-08-01), Schreiber
patent: 4640803 (1987-02-01), Schmidt-Kufeke
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patent: 5013493 (1991-05-01), Tharp
patent: 5034165 (1991-07-01), Willinger
patent: 5059358 (1991-10-01), Tharp
patent: 5133906 (1992-07-01), Louis

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