Treatment of solids-liquid-gas mixtures

Details Treatment of solids-liquid-gas mixtures Treatment of solids-liquid-gas mixtures

1976-07-08

1978-04-25

Hart, Charles N.

Liquid purification or separation

With alarm, indicator, register, recorder, signal or...

Responsive to fluid flow

210 13, 210 14, 210 15, 210195R, 210195S, 210199, 210221P, C02C 106

Patent

active

040861600

ABSTRACT:
A solids-liquid mixture, such as waste water, containing biologically degradable material is treated in a circulatory system having alternating upward and downward flow kept in motion by injection of gas such as air. Mixture is diverted from the system into a separating chamber in which solids-enriched mixture is separated by flotation and/or sedimentation. A solids-rich mixture, preferably recycled from the separation chamber, is fed into the system hydrostatically and thereby the concentration of such solids in the system is maintained and/or such solids are transferred from one location to another without mechanical pumping.

REFERENCES:
patent: RE22701 (1945-12-01), Kelly et al.
patent: 1357587 (1920-11-01), Peck
patent: 3374893 (1968-03-01), Stretton
patent: 3422007 (1969-01-01), Larkin
patent: 3476682 (1969-11-01), Albersmeyer
patent: 3945916 (1976-03-01), Boulenger
"Breakthrough in Sewage Treatment", Water Services, Apr. 1975, pp. 132-140.

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