| 摘要 |
<p>An inverted tray 6 is disposed in the bottom of a tank 2 to define an aeration chamber therein. Air is supplied to this chamber by a pump 12 so that a pocket of air is formed in the upper part 8a of the chamber and aeration takes place at the interface between the air pocket and the water in the chamber. An outlet pipe 18 leads from a position below the upper extremity of the chamber to a position within the tank and is arranged so that, as the pump supplies air to the chamber, the pocket of air forces the water in the chamber downwardly to a level at which air from the pocket may enter the outlet pipe and move upwardly therethrough in the form of bubbles. These bubbles force water in the pipe to move upwardly, and thus further water may be drawn into the chamber via openings in the side of the tray. The device may be used for contacting any gas with any liquid. <IMAGE></p> |
