Fluid treatment system

Details Fluid treatment system Fluid treatment system

1978-04-24

1983-10-25

Cintins, Ivars C.

Liquid purification or separation

Flow, fluid pressure or material level, responsive

Filter cleaning

210142, 210275, 210283, B01D 2324

Patent

active

044117795

ABSTRACT:
A fluid treatment system includes a tank divided into a horizontal series of filtering sub-chambers by perforated plates. A series of graded filtration media, beginning with a coarse medium and progressing to a fine medium such as sand is disposed in consecutive sub-chambers. Various features are provided with this system to perform desirable system operations. For example, the system is provided with input and outlet pressure sensors, and means for detecting the pressure differential between those two sensors, to indicate the desirability of backwashing the filtration media contained within one or more sub-chambers. The system is further provided with plural pumps and valves to permit backwashing of the fine filtration medium in a direction reverse to the direction of filter flow, and transverse to that direction.

REFERENCES:
patent: 690333 (1901-12-01), Wanner
patent: 3512644 (1970-05-01), Nash
patent: 3616915 (1971-11-01), Whitlock
patent: 4001113 (1977-01-01), Schoenrock et al.
patent: 4032443 (1977-06-01), Ross
patent: 4051032 (1977-09-01), Borchardt

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