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...http://www.google.com.au/patents/US6557834?utm_source=gb-gplus-sharePatent US6557834 - Device and method for fluid aeration via gas forced through a liquid within an orifice of a pressure chamber
