C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
C02F 3/12 (2006.01) C02F 3/10 (2006.01)
Patent
CA 2438525
The invention concerns a method for biological purification of effluents in mixed cultures using micro-organisms whereof part at least is fixed on solid supports. The invention is characterised in that said supports are activated so as to generate a turbulence in the reaction medium, the intensity of which is such that it reduces the production of biological sludge, the materials constituting said micro-organism supports being abraded and cleaned, while being retained in said reaction medium.
Procédé d'épuration biologique des eaux résiduaires en cultures mixtes mettant en oeuvre des micro-organismes dont une partie au moins est fixée sur des supports solides, caractérisé en ce que lesdits supports sont mis en mouvement de façon à engendrer une turbulence dans le milieu réactionnel, dont l'intensité est telle qu'elle assure une réduction de la production de boues biologiques, les matériaux constituant lesdits supports de micro-organismes étant soumis à une abrasion et à un nettoyage, tout en étant retenus dans ledit milieu réactionnel.
Buffiere Pierre
Paul Etienne
Goudreau Gage Dubuc
Ondeo Degremont
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