Device for biological digestion of sewage

Details Device for biological digestion of sewage Device for biological digestion of sewage

1979-06-26

1981-02-17

Therkorn, Ernest G.

Liquid purification or separation

With gas-liquid surface contact means

210232, C02F 308

Patent

active

042513707

ABSTRACT:
A device for biological digestion of sewage utilizes rotationally symmetric rotatable growth surfaces, preferably plastic immersion percolating filters, which filters are immersed in the sewage as they rotate. The growth surfaces are mounted upon an immersion cylinder that is rotatably driven and mounted within a gas-tight container according to a preferred embodiment. The drive for the immersion cylinder includes a drive pinion having teeth which engage stud bolts connecting rings forming part of the immersion cylinder.

REFERENCES:
patent: 1419555 (1922-06-01), Garwood
patent: 2433884 (1948-01-01), Bevan
patent: 2892545 (1959-06-01), Griffith
patent: 3442495 (1969-05-01), Schreiber
patent: 3534857 (1970-10-01), Berk
patent: 3630366 (1971-12-01), Joast
patent: 3817857 (1974-06-01), Torpey
patent: 4010102 (1977-03-01), Jarvstrat
patent: 4126544 (1978-11-01), Baenseh

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