Liquid purification or separation – With alarm – indicator – register – recorder – signal or... – Responsive to fluid flow
Patent
1974-07-17
1976-04-20
Hart, Charles N.
Liquid purification or separation
With alarm, indicator, register, recorder, signal or...
Responsive to fluid flow
210 15, 210219, 210220, C02C 112
Patent
active
039517586
ABSTRACT:
A method for operating an at least approximately round reactivating tank with a vertical axis for a purifying plant, according to which the sludge-water mixture to be purified is revolved in the tank and compressed air is introduced into the mixture to supply the reactivating sludge flakes of the sludge-water mixture in the tank with oxygen whereupon the mixture in the tank is forced to carry out and to maintain for a desired time a circular flow of the mixture to be purified which flow is substantially coaxial with the vertical axis of the tank. The invention also includes a reactivating tank for purifying a sludge-water mixture therein which tank has arranged therein adjacent the outer wall thereof turbine means having the axis thereof extending parallel to a tangent to the outer wall of the tank which outer wall is at least approximately round.
REFERENCES:
patent: 3220706 (1965-11-01), Valdespino
patent: 3271304 (1966-09-01), Valdespino et al.
patent: 3336016 (1967-08-01), Schreiber
patent: 3495712 (1970-02-01), Schreiber
patent: 3573203 (1971-03-01), Kaelin
Becker Walter
Hart Charles N.
Menzel & Company
Spitzer Robert H.
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