Liquid purification or separation – Particulate material type separator – e.g. – ion exchange or... – With rehabilitation means
Patent
1976-01-16
1978-02-28
Spear, Jr., Frank A.
Liquid purification or separation
Particulate material type separator, e.g., ion exchange or...
With rehabilitation means
210275, 210279, B01D 2324
Patent
active
040766250
ABSTRACT:
A baffle and wash trough assembly is provided for reducing media loss during high-turbulence washing of granular-media filters. The assembly includes a water collection trough having an overflow weir on at least one side thereof and a lower portion with downwardly and inwardly converging sides, and a baffle supported adjacent one side of the trough; the baffle having an upwardly concave arcuate portion in opposed relation to the trough lower portion, and defining a restricted flow channel for the wash water to the trough. There may also be provided a second baffle supported adjacent the other side of the trough and having an upwardly concave arcuate portion in opposed relation to the other side of the trough lower portion. The lower end of the second baffle preferably terminates above and inwardly of the lower end of the first baffle, thereby defining a second channel for removal of backwash water. The baffle and backwash trough assembly is particularly adapted for use with filters employing simultaneous application of air and water to produce a high turbulence backwash.
REFERENCES:
patent: 1892951 (1933-01-01), Hughes
patent: 2244188 (1941-06-01), Danner
patent: 2538340 (1951-01-01), Tomek et al.
patent: 2888140 (1959-05-01), Herbert
patent: 3286842 (1966-11-01), DeJong
patent: 3313420 (1967-04-01), Hirsch
Scholten John James
Young James Clinton
Cross E. Rollins
General Filter Company
Spear, Jr. Frank A.
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