Apparatus for superflocculating and thickening a sludge

Details Apparatus for superflocculating and thickening a sludge Apparatus for superflocculating and thickening a sludge

1978-08-18

1982-08-31

Spitzer, Robert H.

Liquid purification or separation

With means to add treating material

With distinct reactor tank, trough or compartment

210219, 2105121, 366307, C02F 152

Patent

active

043471358

ABSTRACT:
A thickening apparatus comprises a cylindrical vessel, an axially extending delivery conduit having an outlet in the upper third part of the vessel, a mixer feeding sludge and a flocculating agent to the delivery conduit whereby the sludge and flocculating agent mixture is delivered into the vessel through the delivery conduit outlet, a collecting basin discharging liquid removed from the mixture peripherally of the vessel at the upper part thereof, a vertical rotary shaft extending through the vessel, vanes mounted on the rotary shaft, counter-vanes arranged in the vessel to cooperate with the vanes, the vanes and counter-vanes extending in opposite inclined planes and the vanes forming a discontinuous helix extending from the upper to the lower part of the vessel, the pitch of the helix diminishing towards the lower part, and a discharge conduit for the thickened sludge in the lower part of the vessel.

REFERENCES:
patent: 1932531 (1933-10-01), Parker
patent: 2348122 (1944-05-01), Green
patent: 2405315 (1946-08-01), McBride
patent: 2528094 (1950-10-01), Walker
patent: 3709664 (1973-01-01), Krekeler et al.
patent: 3923652 (1975-12-01), Condolios et al.
patent: 3938783 (1976-02-01), Porter

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