Liquid purification or separation – Particulate material type separator – e.g. – ion exchange or... – Selective units or compartments
Patent
1989-02-27
1991-01-29
Fisher, Richard V.
Liquid purification or separation
Particulate material type separator, e.g., ion exchange or...
Selective units or compartments
210273, 210274, 210275, 210292, B01D 2418, B01D 2446
Patent
active
049884395
ABSTRACT:
A liquid filtration system is provided which includes a traveling bridge carriage mounting air scour and backwash means within a single hood structure for successively cleaning each of a plurality of roughing filter cells and polishing filter cells formed in a filtration tank. The air scour means includes an air scour inlet conduit for supplying air under pressure to each cell. The backwash means includes a backwash conduit for creating suction within each filter cell. The single hood structure is adapted to sealingly engage each of the roughing and polishing filter cells. For the roughing filter cells, only an air scour operation is carried out while, for the polishing filters, backwash is done.
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Davis Water & Waste Industries, Inc.
Drodge Joseph
Fisher Richard V.
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