Process and device for the biological purification of waste wate

Details Process and device for the biological purification of waste wate Process and device for the biological purification of waste wate

1978-05-11

1980-01-15

Castel, Benoit

Liquid purification or separation

With alarm, indicator, register, recorder, signal or...

Responsive to fluid flow

210 16, 210 961, 210DIG28, C02C 510

Patent

active

041838106

ABSTRACT:
Process and apparatus for the biological purification of waste water containing nitrogen compounds. This purification is effected in one or more steps, in the last of which the waste water is denitrified, while additional BOD is added to this step. The supply of BOD to this step is controlled automatically through the continuous analysis of the nitrite-plus-nitrate content in either this step or the discharge from this step.

REFERENCES:
patent: 3964998 (1976-06-01), Barnard
patent: 4056465 (1977-11-01), Spector
Gool H. Van, "Purification of Industrial Waters"; Centre Belge d'Etude et de Documentation des Eaux, Jun.-Jul. 1976, #391-392, pp. 265-279.
Andrews et al.; "Progress in Water Technology", vol. 6 (1973), pp. 124-130.

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