B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
182/105
B01D 39/20 (2006.01) B01D 29/03 (2006.01)
Patent
CA 1197474
ABSTRACT OF THE DISCLOSURE Modules for use in forming rigid filter beds by laying a plurality of the modules side-by-side upon a flat base are in the form of porous, planar elements having a continuous, polygonal upper surface, a continuous lower surface approximately coterminous to the upper surface, and sides normal to said surfaces of substantially equal depth much shorter than their length, such elements comprising laminated layers, each layer being formed of particulate material of substantially uniform size rigidly fixed together in a matrix of cured binder, the particles of the layers being substantially different in size than the particles of the adjacent layers, the top surface being flat and the bottom surface being channelled. In preferred forms, the modules' surfaces are square, there are only a top layer and a bottom layer, the top layer is much thinner than the bottom layer and the particles in the top layer are appreciably smaller than the bottom layer particles. Methods of forming the modules and of using them to form filter beds are also disclosed.
425099
Dimitriou Michael
Highstreet Edward J.
Piper Louis H.
Stannard Forrest B.
Dehydro Corporation (the)
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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