| 摘要 |
<p>A non-fibrous combustible filter aid for vacuum pre-coat filter units maintains a filter bed coating on rotary filter drums just sufficiently porous to pass the liquid of a slurry while retaining the slurry solids thereon, is relatively non-compressible, and is capable of being scraped off the bed in thin film form with the slurry solids thereon to provide disposable material capable of being burned and have the heat values recovered for use.</p> |
