Foam fractionation filter

Details Foam fractionation filter Foam fractionation filter

1991-01-24

1992-06-16

Dawson, Robert A.

Liquid purification or separation

With gas separator

210521, 2105321, 210540, B01D 1900, B01D 2102

Patent

active

051222671

ABSTRACT:
A chamber having side walls, a bottom wall and a top wall having an aperture includes a fluid inlet aperture and a fluid outlet aperture. The chamber includes a bottom baffle disposed within the chamber and adjacent to the bottom wall for dividing the chamber into first and second areas. The bottom baffle includes an aperture for providing a fluid communication path between the chamber first and second areas. A side baffle is disposed within the chamber and adjacent to the side wall containing the fluid outlet aperture. The baffle is disposed generally perpendicular to the bottom baffle for creating a fluid communication path from the chamber second area to the chamber fluid outlet aperture for discharging liquid free of particles of foreign matter from the chamber. Structure is provided for introducing a mixture of the liquid contaminated with particles of foreign matter and bubbles of gas into the chamber first area through the side wall fluid inlet aperture, such that the bubbles of gas in the mixture rise to the top of the chamber whereby the particles of foreign matter contaminating the liquid are caused to float to the top of the chamber by surface adhesion to the bubbles of gas for discharge through the top wall aperture.

REFERENCES:
patent: 3721069 (1973-03-01), Walker
patent: 3844743 (1974-10-01), Jones
patent: 4390422 (1983-06-01), Mackrle et al.
patent: 4603000 (1986-07-01), Casey

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