Centrifuge for draining off sewage sludge

Details Centrifuge for draining off sewage sludge Centrifuge for draining off sewage sludge

1976-04-12

1978-04-25

Krizmanich, George H.

Chemistry: physical processes

B04B 120

Patent

active

040858871

ABSTRACT:
Decanting centrifuge with an inner drum and an outer drum coaxial with the inner drum, each having a helical scraper rotating with a number of revolutions slightly differing from that of the drums, in which sewage sludge to be dewatered is fed to the inner drum and therefrom after initial separation through common passages is transported to the outer drum, in which separated sludge by means of the helical scraper is transported to a discharge at one end and liquid is removed through reject outlets at the other.

REFERENCES:
patent: 1064184 (1913-06-01), Wels
patent: 1806241 (1931-05-01), Dupuis
patent: 2711854 (1955-06-01), Kjellgren
patent: 2734681 (1956-02-01), Schmiedel
patent: 3782623 (1974-01-01), Jorgensen et al.

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