| 摘要 |
<p>An apparatus for introducing a gas into a liquid comprising a container (10), at least one vertical conduit (16) in fluid communication with the container, the conduit having therein at least one mixer assembly (26) for breaking up gas bubbles into bubbles having small diameters, and a means (60) for introducing a gas into the conduit at a point below the mixer assembly, the mixer assembly comprising at least two freely rotating turbines (30, 32, 34) which are spaced apart axially and have different direction or speed of rotation.</p> |
