Intrachannel clarifier

Details Intrachannel clarifier Intrachannel clarifier

1989-03-20

1990-06-26

Fisher, Richard V.

Liquid purification or separation

Recirculation

Serially connected distinct treating or storage units

210256, 210261, 210519, 210534, 210926, C02F 314

Patent

active

049369822

ABSTRACT:
A combined oxidation orbital ditch and intraclarifier has the intraclarifier in the form of an elongated clarifier vessel positioned on the top of a section of the center partition between the ditch sidewalls so that the overall clarifier vessel extends laterally into both of a pair of flow channels formed between the ditch sidewalls and the center partition but is spaced from the ditch sidewalls so as to minimize impediment of the mixed liquor flow being treated in the channels. A gated inlet below the flow surface is provided in the one half of the bow of the vessel facing into the mixed liquor flow for diverting a portion of the flow into the clarifier. That flow portion is distributed over the entire width of the vessel and arrested in flow velocity so that settling of sludge can be performed downstream in the vessel. Clarified liquid removal troughs are provided at the stern end of the vessel and sludge ports are provided in the vessel bottom to transport settled sludge into the mixed liquor flowing under the vessel width.

REFERENCES:
patent: 3421626 (1969-01-01), Schramm et al.
patent: 4303516 (1981-12-01), Stensel et al.
patent: 4362625 (1982-12-01), Beard
patent: 4383922 (1983-05-01), Beard
patent: 4487692 (1984-12-01), Kersten
patent: 4780206 (1988-10-01), Beard et al.
Journal WPCF, vol. 59, No. 10, pp. 871-876 referenced on page 3, lines 23 et al., Oct. 1987.

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