Drying and gas or vapor contact with solids – Process – With nondrying treating of material
Reexamination Certificate
2007-07-03
2011-11-22
Lu, Jiping (Department: 3743)
Drying and gas or vapor contact with solids
Process
With nondrying treating of material
C034S398000, C034S418000, C034S427000
Reexamination Certificate
active
08061057
ABSTRACT:
A system for removing water from sludge is disclosed. The system (100) includes: de-watering (102) sludge comprising an output from a wastewater treatment system to form a semi-solid sludge cake; dispensing (104) the sludge in a sludge hopper and dispensing a blending material in a recipient blending material hopper; depositing (106) the sludge and the blending material in a mixing device; mixing (108) the sludge and the blending material having a porous structure in a weight ratio of the sludge to the blending material of about from 2:1 to about 10:1; and compressing (110) the sludge and the blending material to release moisture. Advantageously, the system (100) provides an improved method of de-watering sludge, for more efficient processing, transporting and recycling, depending on the application.
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Hydrocell Technologies
Lu Jiping
Stoel Rives LLP
Thompson John R.
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