Liquid purification or separation – With alarm – indicator – register – recorder – signal or... – Responsive to fluid flow
Patent
1975-01-27
1976-08-31
Hart, Charles N.
Liquid purification or separation
With alarm, indicator, register, recorder, signal or...
Responsive to fluid flow
210 4, 210 14, 210 16, 210DIG28, C02C 110
Patent
active
039779653
ABSTRACT:
A method of biological purification of sewage in a purification plant in order to decompose organic material and in order to remove inorganic compounds, mainly nitrogen compounds, wherein the plant comprises three tanks only, of which at least two sequentially serve as a feeding tank for the sewage and at least one as a clarification tank, and wherein the sewage at any time is subjected to an aerobic treatment in the plant by means of aeration and simultaneous circulation of the sewage, and wherein a tank, which during a period serves as feeding tank, at least during a part of such period is driven in such a manner that sewage is only circulated, substantially, under anaerobic conditions, the tank being indirectly connected, during at least said part of said period, to a tank serving as clarification tank, viz. via the tank not serving as clarification tank, and by establishing aerobic conditions in a tank after each anaerobic treatment therein and before it is used as clarification tank or is connected to a tank, serving as clarification tank.
REFERENCES:
patent: 1286017 (1918-11-01), Jones
patent: 2875151 (1959-02-01), Davidson
patent: 3382981 (1968-05-01), Hampton
patent: 3442386 (1969-05-01), Malm et al.
patent: 3470092 (1969-09-01), Bernard
patent: 3534857 (1970-10-01), Berk
patent: 3579439 (1971-05-01), Meiring et al.
patent: 3776841 (1973-12-01), Torpey
patent: 3817857 (1972-09-01), Torpey
Krarup Svend
Tholander Bent Kure
Akvadan A/S
Hart Charles N.
Hruskoci Peter A.
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