| 摘要 |
<p>An aeration device (10) for use in a body of water or other liquid such as a dam, lake, effluent pond or the like which is subject to build up of algae and other polluting growths, wherein oxygen or other gaseous fluids are introduced into the water or other liquid. In a preferred embodiment, the device (10) comprises a housing (11) which is submerged in the body of water. The housing includes a first passage (12) for flow of water therethrough, and at least one second passage intersecting the first passage (12) so that a proportion of the water flowing into the first passage (12) flows through the second passage (17). The second passage (17) includes means (20, 22) for entraining air into the water flowing through the second passage (17) which then passes into the body of water. In another embodiment, the device (40) comprises a housing (41) which only has a single passage (42) for the flow of water. A number of the devices (10, 40) can be connected in series.</p> |
