Process and apparatus for the separation of foreign matter from

Details Process and apparatus for the separation of foreign matter from Process and apparatus for the separation of foreign matter from

1987-03-24

1988-12-13

Sever, Frank

Liquid purification or separation

Processes

Making an insoluble substance or accreting suspended...

2102212, B01D 17035

Patent

active

047909447

ABSTRACT:
A process for the separation of foreign matter from a liquid, which process comprises mixing a stream of contaminated liquid containing dissolved gas with a stream of induced gas to provide a multi-phase flow, subjecting the multi-phase flow to turbulence and shearing thereby to produce a well dispersed bubbly liquid stream, passing the bubbly liquid stream into a vessel which contains the liquid contaminated with foreign matter, below the free surface of the liquid, and allowing the bubbles of gas to rise to the surface of the liquid, the surface adherence between the gas bubbles and the particles of foreign matter causing the particles of foreign matter to float to the surface of the liquid.

REFERENCES:
patent: 2730190 (1956-07-01), Brown et al.
patent: 3986954 (1976-10-01), George et al.
patent: 4627922 (1986-12-01), Viator et al.
A. Mathews et al., "Treatment of Oil Contaminated Waste Waters by Foam Fractionation", Water Research, vol. 13, No. 4, pp. 385 to 391, (Apr. 1979).

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