Water filtration process and apparatus having upflow filter with

Details Water filtration process and apparatus having upflow filter with Water filtration process and apparatus having upflow filter with

1983-02-10

1985-10-15

Wyse, Thomas

Liquid purification or separation

Processes

Making an insoluble substance or accreting suspended...

210786, 210792, 210796, 210274, 210276, 210279, 210284, 210286, B01D 3700

Patent

active

045472866

ABSTRACT:
High rate filtration system includes an upflow filter vessel containing a bed of buoyant media followed by a downflow filter vessel containing a bed of nonbuoyant media. The upflow filter vessel is unobstructed by cross-sectional, media-confining screens. A horizontal trough structure collects filter effluent and makes it possible to clean the bed by diffusing air into the liquid below the bed so that average fluid density in the bed is reduced. The reduction in fluid density results in expansion of the bed as media particles descend by gravity.

REFERENCES:
patent: 468984 (1892-02-01), Boeing
patent: 1403311 (1922-01-01), Gaillet
patent: 2057887 (1936-10-01), Elliott et al.
patent: 2069621 (1937-02-01), Patrick
patent: 2233981 (1941-03-01), Jewell
patent: 2353602 (1944-07-01), Trotter
patent: 2572848 (1951-10-01), Fitch
patent: 2715964 (1955-08-01), Martin
patent: 2742381 (1956-04-01), Weiss et al.
patent: 2758070 (1956-08-01), Yurko
patent: 2925382 (1960-02-01), Kent et al.
patent: 3122594 (1964-02-01), Keilback
patent: 3232434 (1966-02-01), Albersmeyer
patent: 3293174 (1966-12-01), Robjohns
patent: 3305096 (1967-02-01), Schleiss
patent: 3343680 (1967-09-01), Rice et al.
patent: 3424674 (1969-01-01), Webber
patent: 3459302 (1969-08-01), Ross
patent: 3557955 (1971-01-01), Hirs et al.
patent: 3635764 (1972-01-01), Setser et al.
patent: 3671426 (1972-06-01), Orcutt et al.
patent: 3701423 (1972-10-01), Lindstol
patent: 3770131 (1973-11-01), Davis et al.
patent: 3948767 (1976-04-01), Chapman
patent: 3956128 (1976-05-01), Turner
patent: 4052300 (1977-10-01), Mosso
patent: 4062775 (1977-12-01), Pielkenrood
patent: 4100070 (1978-07-01), White et al.
patent: 4115266 (1978-09-01), Oshima
patent: 4125467 (1978-11-01), Haddad et al.
patent: 4198301 (1980-04-01), Iwatani
patent: 4290894 (1981-09-01), Torok
patent: 4420403 (1983-12-01), Tufts
patent: 4427555 (1984-01-01), Brown et al.
Simmers, "Bouyant Media Filter", Proceedings, 40th International Water Conference, pp. 25-27.
Oshima, "Amendment Under Rule 312", File History of U.S. Pat. No. 4,115,266, issued Sept. 1978.

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