Mechanical dewatering process

Details Mechanical dewatering process Mechanical dewatering process

B - Operations, Transporting

01

D

100/8

B01D 37/02 (2006.01) B30B 9/12 (2006.01) B30B 9/26 (2006.01) C02F 11/12 (2006.01)

Patent

CA 1082983

MECHANICAL DEWATERING PROCESS ABSTRACT A process for mechanically dewatering fibrous organic waste such as sewage sludge. The undewatered waste is passed into the first end of a cylindrical de- watering zone having a porous outer wall. A helical blade rotated within the dewatering zone pressurizes the waste and moves it to the outlet at the second end of the dewatering zone. A filter media comprising a cylindrical substantially unagitated layer of fibrous material derived from the waste is retained within an annular space loca- ted between the outer edge of the helical blade and the inner surface of the porous wall.

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