B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
183/1
B01D 53/22 (2006.01) B01F 3/04 (2006.01) A61M 1/16 (2006.01)
Patent
CA 1121280
ABSTRACT OF THE DISCLOSURE The invention provides a diffusion apparatus for the diffusion of a gas into a liquid comprising: a pair of semi- permeable membranes each having first and second opposing surfaces and arranged with the first surfaces facing one another and the second surfaces facing away from one another, the semi-permeable membranes each being permeable to at least a portion of the gas; a first introduction arrangement for introducing said gas between the pair of semi-permeable membranes to be conducted along the first surfaces thereof; a pair of spacing plates arranged in juxtaposition to the second surfaces of the pair of semi- permeable membranes, the spacing plates including flow channels therein for conducting the liquid along the second surfaces of the-semi-permeable membranes; a second introduction arrangement for introducing said liquid into the flow channels of the spacing plates to be conducted therethrough along the second surfaces of the semi-permeable membranes, whereby at least a first part of the portion of the gas diffuses through the semi- permeable membranes into the liquid to form bubbles of the diffused gas of a first size in the liquid; and a mixing arrangement associated with each of the semi-permeable membranes for directly mixing the second part of the gas into the liquid as the liquid is conducted through the flow channels along the second surfaces of the semi-permeable membranes so as to form bubbles of a second size larger than the first size in the liquid. A third fluid may be employed for heating purposes. .
319772
Stenberg Kaj O.
Traven Lars J.c.
Gambro Ab
Marks & Clerk
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