| 摘要 |
<p>A diffuser for dispersing gas into a body of liquid that may contain suspended solids. Under ordinary clogging conditions, the diffuser will remain operative over an indefinite period of time by reason of large gas outlet openings at the bottom of the gas plenum chamber. In addition, it can be employed for a good portion of that time to disperse a substantial flow of coarse bubbles and fine bubbles, in a desired combination, simultaneously from a single gas plenum. Careful selection of the permeability of a top porous wall of a gas plenum chamber, together with proper selection of the level of coarse bubble gas outlet openings in the side walls of the plenum chamber achieve the second feature.</p> |
