B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
B01D 21/01 (2006.01) C02F 1/52 (2006.01)
Patent
CA 2279406
The invention concerns a method for the physico-chemical treatment of effluents, in particular of surface water for consumption comprising successive steps of coagulation, flocculation and decantation, characterised in that, during the flocculating step, a ballast is introduced in the sludge for loading it and the contact mass used during this flocculating step partly consists of densified sludge derived from the decanting step and continuously recycled (P1) in the flocculating step untreated.
Procédé de traitement physico-chimique d'effluents, notamment d'eaux de surfaces destinées à la consommation comprenant les étapes successives de coagulation, floculation et décantation, caractérisé en ce que, pendant l'étape de floculation, on introduit dans la boue un lest dont la fonction consiste à alourdir cette dernière et en ce que la masse de contact utilisée durant cette étape de floculation est constituée par une partie des boues densifiées provenant de l'étape de décantation et recyclée (P1) en continu dans l'étape de floculation, sans aucun traitement.
Degremont
Goudreau Gage Dubuc
LandOfFree
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