Liquid purification or separation – Recirculation – Serially connected distinct treating or storage units
Patent
1995-04-17
1996-08-27
Upton, Christopher
Liquid purification or separation
Recirculation
Serially connected distinct treating or storage units
210220, 210256, C02F 320
Patent
active
055498183
ABSTRACT:
A sewage treatment system which includes a cylindrical treatment tank fitted with an air distribution system and an inverted, cone-shaped clarifier, wherein air is supplied to the aeration chamber of the treatment tank through the air distribution system by means of a compressor. The treatment tank is normally installed below the surface of the ground and the air distribution system includes downwardly-extending air drop lines, the plugged ends of which project at or below the plane of the bottom open end of the cone-shaped clarifier. The drop lines are provided with spaced air openings which face the clarifier and are located above the plane of the bottom open end of the clarifier, to facilitate optimum diffusion of air into the aeration chamber toward the clarifier from the drop lines, responsive to operation of the compressor.
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Harrison John M.
Upton Christopher
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