B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
182/141
B01D 21/02 (2006.01) B01D 21/00 (2006.01)
Patent
CA 1315703
ABSTRACT OF THE DISCLOSURE The invention relates to an improvement with apparatus for the decantation treatment of liquid containing therein suspended material and comprising a sludge bed contained within a first network of plates or tubes. This improvement is characterized by the fact that a second network of parallel plates inclined to the horizontal at an angle from 40 degres to 80 degres (especially 60 degres) is positioned within the sedimentation zone, the distance between adjoining plates of said second network being much smaller than the one between adjoining plates of the first network. This second network is useful to limit the expansion of the interface sludge bed-clarified water within a laminar decantation network, when a sudden increase of upward flow rate of liquid occurs.
614704
Cyr Robert
Degremont Infilco Ltd.
Robic
LandOfFree
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