C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
C02F 11/00 (2006.01) C02F 11/04 (2006.01) C12P 5/02 (2006.01)
Patent
CA 2687512
The present invention relates to a method for treatment of sludge in water purification, the method comprising the steps: providing an enzyme mixture comprising at least one enzyme capable of digesting natural polymeric materials; and adding the enzyme mixture and at least one chelating reagent, in optional order or simultaneously, to an aqueous sludge suspension. The chelating agent is chosen from the group consisting of citric acid and its salts.
La présente invention concerne un procédé de traitement d'une boue dans la purification de l'eau, le procédé comprenant les étapes consistant à : fournir un mélange d'enzymes comprenant au moins une enzyme capable de digérer les substances polymères naturelles; et ajouter le mélange enzymatique et au moins un réactif chélatant, dans un ordre éventuel ou simultanément, à une suspension de boue aqueuse. L'agent chélatant est choisi dans le groupe comprenant l'acide citrique et ses sels.
Norrloew Olof
Szwajcer Dey Estera
Borden Ladner Gervais Llp
Kemira Oyj
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