Liquid waste treatment system

Details Liquid waste treatment system Liquid waste treatment system

1987-11-30

1989-04-04

Fisher, Richard V.

Liquid purification or separation

Recirculation

Serially connected distinct treating or storage units

210202, 210208, 210521, 210740, B01D 2101, B01D 2108, C02F 152

Patent

active

048183920

ABSTRACT:
A method of treating and progressively densifying liquid waste. It comprises thoroughly mixing and aerating by a continuous mixer and/or aerating raw water and chemical treating materials, discharging the resulting mixture downwardly into a reaction compartment, thence drawing the resulting material upwardly by means of an impeller and gravity flow, then allowing a portion of the resulting denser sludge to descend downwardly by gravity into a floc tunnel, thence in a horizontal portion, further densifying and separating takes place. The remaining portion is directed horizontally against inclined, closely spaced parallel plates to clear the resulting fines mixture. Thereafter, there is still further densifying of the sludge. By this method, a very dense sludge is obtained in a relatively small space.

REFERENCES:
patent: 1518136 (1924-12-01), Dorr
patent: 3807560 (1974-04-01), Pentz et al.
patent: 4136012 (1979-01-01), Louboutin et al.
patent: 4290898 (1981-09-01), von Hagel et al.
patent: 4351733 (1982-09-01), Salzer et al.
patent: 4474477 (1984-10-01), Smith et al.
patent: 4526687 (1985-07-01), Nugent
patent: 4579655 (1986-04-01), Louboutin et al.

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