Liquid purification or separation – Flow – fluid pressure or material level – responsive – Float
Patent
1984-10-24
1986-11-11
Wyse, Tom
Liquid purification or separation
Flow, fluid pressure or material level, responsive
Float
210129, 210139, 2101953, 210220, C02F 320
Patent
active
046221344
ABSTRACT:
An apparatus for treating sewage is disclosed wherein incoming sewage is in turn put into a balancing tank, an aeration tank and a precipitation tank, settled sludge in the precipitation tank being returned to the aeration tank, which aerates the sewage in adjusted relation with its flow rate, but permits intermittent aeration in the absence of sewage flowing into the aeration tank and prolonged aeration after termination of sewage flow into the tank.
REFERENCES:
patent: 3342727 (1967-09-01), Bringle
patent: 3524547 (1970-08-01), Nicol
patent: 3721344 (1973-03-01), Rost
patent: 3879290 (1975-04-01), Arnot, Jr.
patent: 4179366 (1979-12-01), Kaelin
patent: 4333838 (1982-06-01), Ballnus
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