Liquid purification or separation – With alarm – indicator – register – recorder – signal or... – Responsive to fluid flow
Patent
1977-08-09
1979-06-26
Castel, Benoit
Liquid purification or separation
With alarm, indicator, register, recorder, signal or...
Responsive to fluid flow
210 16, 210199, 210 961, 210DIG28, C02C 106
Patent
active
041592433
ABSTRACT:
The present process and system provides a means for controlling denitrification in an orbital system. The process includes measuring the dissolved oxygen concentration at two or more points in the sewage in the orbital system and controlling the rate of aeration of the sewage according to the dissolved oxygen concentration.
REFERENCES:
patent: 3426899 (1969-02-01), Smith
patent: 3557954 (1971-01-01), Welch
patent: 3900394 (1975-08-01), Rongved
patent: 3964998 (1976-06-01), Barnard
patent: 3977965 (1976-08-01), Tholander et al.
Van Der Geest; A. T. et al., "Nitrification and Denitrification in Carrousel Systems", presented at W.P.C.F. annual meeting, 1975.
Bohner Hal J.
Castel Benoit
Envirotech Corporation
Krebs Robert E.
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