Filtration concentration apparatus and method

Details Filtration concentration apparatus and method Filtration concentration apparatus and method

1994-02-04

1996-03-12

Cintins, Ivars

Liquid purification or separation

Processes

Separating

210411, B01D 2966

Patent

active

054983495

ABSTRACT:
A filtration concentration apparatus and method by which a high operation efficiency of a filter is assured are disclosed. The filtration concentration apparatus comprises an original liquid intake path interconnecting a primary side of a pump and an original liquid storage tank, an original liquid supply path interconnecting a secondary side of the pump and an original liquid chamber of a filter, an original liquid return path interconnecting the secondary side of the pump and the storage tank, an original liquid recovery path interconnecting the original liquid chamber and the primary side of the pump, a liquid discharge path interconnecting a bottom portion of the original liquid chamber and a waste liquid tank, and a control unit for controlling the recovery path to open when the intake path and the supply path are open and controlling the intake path and the supply path to close when the recovery path and the return path are open. A filtering step of feeding original liquid under pressure into the filter by the pump and a backwashing step of sucking original liquid from the filter by the pump are performed alternately and repetitively.

REFERENCES:
patent: 4055500 (1977-10-01), Parker
patent: 4517086 (1985-05-01), Romey et al.
patent: 4874533 (1989-10-01), Boze et al.

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