Liquid purification or separation – Particulate material type separator – e.g. – ion exchange or... – Selective units or compartments
Patent
1989-01-26
1990-09-18
Fisher, Richard V.
Liquid purification or separation
Particulate material type separator, e.g., ion exchange or...
Selective units or compartments
210276, 210292, B01D 2422
Patent
active
049576313
ABSTRACT:
A liquid filtration system is provided which includes a traveling bridge device mounting and backwash means for successively cleaning each of a plurality of filter cells formed in a filtration tank. Both surface wash and backwash means are included in a single hood structure adapted to sealingly engage each filter cell, successively, as the traveling bridge carriage traverses the tank. The surface wash means includes a surface wash conduit for supplying liquid under pressure to the upper surface layer of each cell. The backwash means includes a backwash conduit for creating suction within each filter cell.
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Davis Water and Waste Industries, Inc.
Fisher Richard V.
Millard Wanda L.
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