Filter media treatment of a fluid flow to remove colloidal...

Details Filter media treatment of a fluid flow to remove colloidal... Filter media treatment of a fluid flow to remove colloidal...

B - Operations, Transporting

01

D

B01D 15/00 (2006.01) B01D 24/10 (2006.01) B01D 37/03 (2006.01) B01J 20/26 (2006.01) B01J 20/32 (2006.01) C02F 1/28 (2006.01)

Patent

CA 2158644

Colloidal matter is removed from a fluid flow (122) by first adsorbing a coagulant (162) onto the surface of a finely divided filter media (126), and thereafter passing a colloid-containing fluid (122) through the filter media (126). The adsorbing of coagulant (162) is accomplished with the filter media (126) off line, and it is returned on-line for filtering of the fluid. After the coagulant (162) is adsorbed onto the filter media (126), it is not necessary to continue feeding coagulant during on-line operation, as the adsorbed coagulant captures the colloidal matter in the fluid (122) and retains it on the surface of the filter media (126). The captured colloidal matter is removed during back washing of the filter media (126).

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