Method for purification of waste water

Details Method for purification of waste water Method for purification of waste water

C - Chemistry, Metallurgy

02

F

C02F 3/06 (2006.01) C02F 1/52 (2006.01) C02F 1/74 (2006.01) C02F 3/00 (2006.01) C02F 3/04 (2006.01) C02F 3/12 (2006.01) C02F 3/28 (2006.01)

Patent

CA 2090604

In a method of treating wastewater trickling through a granular filter bed activated by bacteria, there is first carried out simultaneous precipitation of phosphor and denitrification, subsequent to which there is carried out a reduction of excess (BOD) in the wasterwater, preferably by blowing in an oxygen-containing gas.

Dans une méthode de traitement des eaux usées percolant à travers un lit de filtre granulaire activé par des bactéries, il y a d'abord précipitation simultanée de phosphore et dénitrification, suivis de la réduction de l'excès de DBO dans les eaux usées, de préférence par soufflage dans un gaz contenant de l'oxygène.

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