Water treating method and arrangement integrating a...

C - Chemistry – Metallurgy – 02 – F

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C02F 3/06 (2006.01) B01D 21/01 (2006.01) B01D 21/06 (2006.01) C02F 1/52 (2006.01) C02F 1/56 (2006.01)

Patent

CA 2625798

The inventive water treating method and arrangement successively combine at least one step consisting in biological treating at least one part of pollution contained in said waters by a fixed biomass, wherein a bio-cleaned flow logically obtainable at the and of said step, prior to the entry thereof to a next step, contains less than 2 mg/l of MES, and at least one stage for carrying out a flocculation-decantation by ballasted flocs consisting in transferring biologically treated flow to a mixing area (2), preferentially at a velocity gradient ranging from 10 s-1 to 1000 s-1, wherein at least one type of denser than water insoluble granulated material is injected and suspended matters are aggregated around said granulated material particles, in transferring the flow issued from the mixing area (2) to a decantation area, wherein the clarified flow and decantation sludges mixed with the granulated material are separated, in extracting granulated material from the decantation sludges, in recycling major part thereof is in the mixing area (2) and in removing the decantation sludges separated form the granulated material.

Procédé et installation de traitement d'eaux combinant successivement au moins une étape de traitement biologique par biomasse fixée d'au moins une partie de la pollution contenu dans lesdites eaux, l'écoulement épuré bio logiquement obtenu à l'issue de cette étape contenant, avant son entrée dans l'étape suivante, moins de 2 mg/l de MES, et au moins une étape de floculation-décantation à flocs lestés selon laquelle on fait passer l'écoulement traité biologiquement dans une zone de mélange (2), préfèrentiellement selon un gradient de vitesse compris entre 10 s-1 et 1000 s-1, dans laquelle sont injectés au moins un matériau granulaire insoluble plus dense que l'eau, et dans laquelle on laisse les matières en suspension s'agréger autour des particules dudit matériau granulaire; on fait passer l'écoulement sortant de la zone de mélange (2) dans une zone de décantation (3) dans laquelle on sépare une effluent clarifié et des boues de décantation mélangées à du matériau granulaire; on extrait le matériau granulaire des boues de décantation, et on en recycle l'essentiel dans ladite zone de mélange (2), on extrait les boues de décantation séparées du matériau granulaire.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Water treating method and arrangement integrating a... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Water treating method and arrangement integrating a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Water treating method and arrangement integrating a... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1662275

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.