Liquid purification or separation – With alarm – indicator – register – recorder – signal or... – Responsive to fluid flow
Patent
1974-07-12
1977-03-08
Hart, Charles N.
Liquid purification or separation
With alarm, indicator, register, recorder, signal or...
Responsive to fluid flow
210 16, 210 18, 210DIG28, 210 10, C02C 106
Patent
active
040111563
ABSTRACT:
A method of eliminating organic and inorganic bound nitrogen from domestic and industrial waste water in a biological waste water treatment plant consisting of two in series connected stages each containing an aeration tank and a subsequently connected settling basin. Waste water entering the treatment plant will be aerated in the first stage aeration tank and subsequently will be introduced for settling into the settling basin, where the overflow is removed free of oxygen and introduced into the second stage where it will be again aerated and subsequently introduced into the settling basin of the second stage. According to the invention there are carried out the steps of aerating the waste water which is free of oxygen containing ammonia and removing it from the settling basin of the first stage to the aeration tank of the second stage while providing favorable conditions for as extensive as possible nitrification of the ammonia, continuously recirculating a portion of the waste water nitrified in this manner from the settling basin of the second stage to the first stage, and denitrifying such recirculated portion of the waste water in the settling basin of the first stage where there are provided favorable conditions for the ammonification of the organic bound nitrogen and for the denitrification of the nitrate in the influent and the nitrate in the recirculated effluents.
REFERENCES:
patent: 2562510 (1951-07-01), Schlenz
patent: 3345288 (1967-10-01), Sontheimer
patent: 3480144 (1969-11-01), Barth et al.
patent: 3579439 (1971-05-01), Meiring et al.
patent: 3617542 (1971-11-01), Boehler et al.
patent: 3642617 (1972-02-01), Brink et al.
patent: 3654147 (1974-06-01), Levin et al.
Johnson, W. K. et al.; Nitrogen Removal by Nitrification and Denitrification, Journal W.P.C.F., vol. 36, Aug. 1964, pp. 1015-1036 (P.O.S.L.).
Dubach Max
Scherler Alfred
Castel Benoit
Cellulose Attisholz, AG
Hart Charles N.
Kleeman Werner W.
LandOfFree
Method for eliminating organic and inorganic bound nitrogen from does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for eliminating organic and inorganic bound nitrogen from, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for eliminating organic and inorganic bound nitrogen from will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1405315