Wastewater treatment apparatus

Details Wastewater treatment apparatus Wastewater treatment apparatus

1995-06-21

1996-12-24

Upton, Christopher

Liquid purification or separation

Structural installation

Flume stream type

210162, 210202, 210255, 210312, C02F 900

Patent

active

055870678

ABSTRACT:
Headworks for preliminary treatment of wastewater in a sewage treatment plant provides for primary filtration of grit and other coarse debris, de-ragging in a flume which carries the water away from the filter, chemical addition in a chemical mixing tank and scum removal in a scum removal tank provided with a scum skimmer. The scum removal tank may also be provided with means for pre-aerating the wastewater, secondary grit removal means, secondary de-ragging means and a partial flume for flow measurement. A debris collection device in the form of a flexible fabric sock is also disclosed.

REFERENCES:
patent: 1239388 (1917-09-01), Hamner
patent: 1254125 (1918-01-01), Dash
patent: 1861031 (1932-05-01), Schmitt
patent: 1972264 (1934-09-01), Hirschhorn
patent: 3015621 (1962-01-01), Quast
patent: 3047492 (1962-07-01), Gambrel
patent: 3297567 (1967-01-01), Tapleshay
patent: 3451555 (1969-06-01), Ginaven
patent: 3674687 (1972-07-01), Quase
patent: 3710941 (1973-01-01), Brociner
patent: 5015393 (1991-05-01), Russell et al.
patent: 5406966 (1995-04-01), Lepkowski et al.

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