| 摘要 |
A method for dewatering an aggregate solid substrate is disclosed which comprises placing the substrate between two moving permeable belts, compressing the substrate between the belts, contacting the substrate with a displacement fluid while it is still compressed between the belts such that the substrate and the fluid remain in plug flow while in contact with each other, removing relatively pure water which is expressed by the displacement fluid, further compressing the substrate between the belts to remove excess displacement fluid, and collecting the dewatered substrate. In a preferred embodiment, both the relatively pure water and the excess displacement fluid are collected for recycling, direct disposal, or other use.
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