Rotating biological contactors for the treatment of waste water

Details Rotating biological contactors for the treatment of waste water Rotating biological contactors for the treatment of waste water

1982-12-27

1984-02-14

Hart, Charles N.

Liquid purification or separation

With gas-liquid surface contact means

261 92, C02F 174

Patent

active

044315376

ABSTRACT:
A rotating biological contactor for the treatment of waste water comprises the first and second elongate sheets of an equal width spirally wound in multiple turns on a rotatable shaft in a superimposed relation to each other to form a convolute, the first sheet being corrugated with transversely alternately arranged longitudinal rows of deep and shallow corrugations having an equal longitudinal pitch whereby the apexes of the deep corrugations are transversely in alignment with the apexes of the shallow corrugations, with the apexes of the shallow corrugations constituting transversely spaced valleys between the respective adjacent apexes of the deep corrugations, the second sheet being generally flat and provided with embossed longitudinal ridges which fit in the valleys of the first sheet.

REFERENCES:
patent: 3498372 (1970-03-01), Patten et al.
patent: 3931854 (1976-01-01), Ivakhnenko et al.
patent: 4115268 (1978-09-01), Thissen

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