C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
362/25
C02F 3/22 (2006.01) B01F 3/04 (2006.01) B01F 3/08 (2006.01) B01F 5/02 (2006.01) B01F 15/02 (2006.01) C02F 3/12 (2006.01) C02F 7/00 (2006.01) B01F 13/00 (2006.01) B01F 15/00 (2006.01)
Patent
CA 1268566
ABSTRACT OF THE DISCLOSURE: A method and an apparatus for restoring bodies of water by artificial aeration of the deep water (the hypolimnion), whereby the natural stratification of the water is maintained and no compressor is required. In the method a pump draws the deep water in and forces it through an ejector which, in turn, drawn air from the atmosphere and mixes it, in the form of finely divided bubbles, with the water. The mixture of water and air is injected into a riser-pipe in which the ascending air-bubbles produces an upwardly directed vertical flow, additional deep water being drawn in through the opening at the bottom of the riser-pipe and being brought into contact with the air-bubbles. At the top, residual air can escape into the atmosphere through the opening at the top of the riser-pipe, or through a degasifi- cation link connected thereto, whereas oxygen enriched water can be passed through a downpipe back to the hypolimnion.
508522
Petersen Fred
Robic Robic & Associes/associates
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