Dissolved air floatation system

Details Dissolved air floatation system Dissolved air floatation system

1974-08-06

1976-01-13

Hart, Charles N.

Liquid purification or separation

Recirculation

Serially connected distinct treating or storage units

210221, 210320, B01D 1700, B03D 100

Patent

active

039322823

ABSTRACT:
A compact dissolved air floatation system is provided for very small flow, i.e., less than 20,000 gallons per day. The floatation system includes a vertical floatation column including a release well comprising an inverted, truncated cone with tangential inlet flow to prevent breakage of the bubbles. The floatation column also includes a clarified water outlet at the lower portion thereof, which water outlet comprises a pipe defining openings on its circumference and having a debris trap member fastened to the top of the pipe.

REFERENCES:
patent: 1717223 (1929-06-01), Karlstrom
patent: 2793185 (1957-05-01), Albrektsson et al.
patent: 3072261 (1963-01-01), Smith
patent: 3192155 (1965-06-01), Bready et al.
patent: 3418236 (1968-12-01), Mail
patent: 3558255 (1971-01-01), Rose
patent: 3669883 (1972-06-01), Huckstedt et al.

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