Process and plant for sewage treatment

Details Process and plant for sewage treatment Process and plant for sewage treatment

C - Chemistry, Metallurgy

02

F

C02F 9/00 (2006.01) C02F 3/06 (2006.01) C02F 3/10 (2006.01)

Patent

CA 2248358

The invention relates to a process for the treatment of sewage from car-washes in a mechanical and biological treatment stage during which the sewage is collected in a tank (3) after passing through a silt trap (2), then is conveyed into a bioreactor (8) via a filter for suspended matter (7). After biological clarification in a pure water container (11), the sewage is collected to be used again. The invention also relates to a plant for carrying out, in particular, said process.

L'invention concerne un procédé pour le traitement d'eaux usées, provenant de stations de lavage auto, au cours d'une étape de traitement mécanique et biologique lors de laquelle les eaux usées sont collectées dans un réservoir (3) après leur passage dans un bassin de dessablement (2), puis sont acheminées dans un bioréacteur (8) en passant dans un filtre pour matières en suspension (7). Aprèes clarification biologique dans un réservoir d'eau pure (11), les eaux sont collectées pour être réutilisées. L'invention concerne également une installation pour réaliser notamment ce procédé.

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