Patent ID: 8196311
Filing Date: 2012-06-12
Classification: C02F,C10L,F26B,Y02E

Abstract:
1. A method for removing water from sludge, comprising the steps of: de-watering the sludge by compression; after de-watering the sludge by compression, mixing the sludge and a compressible blending material such that the blending material is distributed throughout the sludge in a substantially uniform manner to form a mixture; providing a compression apparatus including a compression ram and a plate press, the plate press comprising a plurality of apertures vertically disposed below the compression ram to enable gravitational pull of water through the apertures; disposing a porous material on the plate press to cover the plurality of apertures, said porous material allows through passage of liquids and minimizes flow of solids; disposing the mixture of sludge and blending material on the porous material and below the compression ram; and the compression ram compressing the mixture of sludge and blending material against the porous material and the plate press to release water through the apertures, wherein the blending material comprises: a processed wood board in the form of a dust; and a substantially compressible material comprising as least one of a glue, resin, and urea formaldehyde.