B - Operations – Transporting – 01 – F
Patent
B - Operations, Transporting
01
F
B01F 3/04 (2006.01) B01F 3/08 (2006.01) B01F 5/04 (2006.01) B05B 7/04 (2006.01) B05B 7/06 (2006.01) B05B 7/08 (2006.01) C02F 3/20 (2006.01) F02M 43/04 (2006.01) F02M 67/10 (2006.01) F02M 69/04 (2006.01) F23D 11/10 (2006.01) G01N 15/14 (2006.01)
Patent
CA 2314919
The present invention provides aeration methods using spherical gas bubbles having a size on the order of 0.1 to 100 microns in size. A device of the invention for producing a monodispersion of bubbles includes a source of a stream of gas which is forced through a liquid held under pressure in a pressure chamber with an exit opening therein. The stream of gas surrounded by the liquid in the pressure chamber flows out of an exit orifice of the chamber into a liquid thereby creating a monodispersion of bubbles with substantially uniform diameter. The bubbles are small in size and produced with a relatively small amount of energy relative to comparable systems. Applications of the aeration technology range from oxygenating sewage with monodispersions of bubbles to oxygenation of water for fish maintenance.
La présente invention concerne des procédés d'aération utilisant des bulles de gaz sphériques d'une grosseur comprise entre 0,1 et 100 microns. Un dispositif de l'invention permettant de produire une monodispersion de bulles comprend une source de flux gazeux que l'on force à passer à travers un liquide maintenu sous pression dans une chambre de pression pourvue d'une ouverture de sortie. Le flux gazeux entouré du liquide dans la chambre de pression s'écoule dans un liquide à travers un orifice de sortie de la chambre, créant ainsi une monodispersion de bulles de diamètre sensiblement uniforme. Les bulles sont de petite taille et leur production ne nécessite que relativement peu d'énergie par rapport à des systèmes comparables. Les applications de la technique d'aération vont de l'oxygénation des eaux d'égout à l'aide de monodispersions de bulles à l'oxygénation de l'eau dans laquelle vivent des poissons.
Fetherstonhaugh & Co.
Universidad de Sevilla
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