Process and system for increasing the gas uptake by a liquid bei

Details Process and system for increasing the gas uptake by a liquid bei Process and system for increasing the gas uptake by a liquid bei

1993-02-16

1994-07-26

Miles, Tim

Gas and liquid contact apparatus

Contact devices

Rotating

261120, 261123, B01F 304

Patent

active

053325346

ABSTRACT:
A process and system for enhancing the oxygen uptake by a liquid being aerated in a basin or tank with the aid of an aerator which can only aerate the liquid over a cross-sectional zone smaller than the total floor surface of the basin or tank. To achieve the enhancement, there is provided vertically above the aerator but at the surface of the body of liquid an enclosure which is open at its top and bottom and has a cross-sectional size sufficient to surround approximately the entire region where the rising directly aerated quantity of liquid reaches the surface of the body liquid. The enclosure, which when installed has its top edge arranged above and its bottom edge below the surface of the body of liquid, is constructed and arranged to either entirely or partly inhibit flow of the upwardly displaced aerated liquid laterally outwardly from the region of its arrival at the surface of the body of liquid, thereby to control the "airlift effect" and the resultant liquid circulation which tends to reduce oxygen uptake.

REFERENCES:
patent: 1413724 (1922-04-01), Groch
patent: 1441560 (1923-01-01), Connors
patent: 2609189 (1952-09-01), Dering
patent: 2892543 (1959-06-01), Daman
patent: 3722679 (1973-03-01), Logue
patent: 3775307 (1973-11-01), McWhirter et al.
patent: 3794303 (1974-02-01), Hirshon
patent: 3891729 (1975-06-01), Ebner et al.
patent: 4070423 (1978-01-01), Pierce
patent: 4268398 (1981-05-01), Shuck et al.
patent: 4582599 (1986-04-01), Repin et al.

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