| 摘要 |
Sludge or slurry is dewatered by passing it on a screw conveyor through a sealed vessel at a vacuum more negative than -10 inches of Hg. As a result, moisture is removed from the sludge or slurry as water vapor. The vessel is sealed from air by the presence of the sludge or slurry at the inlet and outlet port extents of the vessel.
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