Water Treating Method and Arrangement Integrating a Fixed-Bacteria Biological Treatment and Flocculation-Decantation

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United States of America Patent

APP PUB NO 20090218281A1
SERIAL NO

12091849

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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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 g/l of SS, 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.

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Patent Owner(s)

Patent OwnerAddress
OTV SAIMMEUBLE L'AQUARENE 1 PLACE MONTGOLFIER SAINT-MAURICE 94410

International Classification(s)

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  • 2006 Application Filing Year
  • C02F Class
  • 657 Applications Filed
  • 335 Patents Issued To-Date
  • 50.99 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances2006200720082009201020112012201320142015201620172018201920200255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Banerjee, Kashi Moon Township , US 20 274
Blumenschein, Charles Pittsburgh , US 4 34
Sauvignet, Philippe Saint-etienne-en-cogles , FR 21 144

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Patent Citation Ranking

  • 25 Citation Count
  • C02F Class
  • 85.50 % this patent is cited more than
  • 16 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges223031354619822101 - 1011 - 2021 - 3031 - 4041 - 5051 - 6061 - 7081 - 90020406080100120140160180200220240260280300320

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