B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
182/125
B01D 21/24 (2006.01) B01D 21/00 (2006.01) C02F 1/00 (2006.01)
Patent
CA 1111782
ABSTRACT OF THE DISCLOSURE An apparatus and method for improving the settling out of suspended solids in a liquor are described. A diffuser of a particular type is used to introduce a liquor containing a flocculant suspension into a sedimentation tank with low turbulence. The diffuser is so shaped that the liquor velocity can be reduced in a controlled manner. Liquid shear conditions are made so low inside the diffuser that excessive break up of flocs does not occur. The diffuser has a flare angle and a discharge opening to throat dimensional ratio whereby these conditions of low turbulence and forma- tion can be established. Several embodiments of sedimenta- tion apparatus employing such diffuser are described.
313033
Dorr-Oliver Incorporated
Fetherstonhaugh & Co.
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