C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
C02F 3/12 (2006.01) C02F 1/56 (2006.01)
Patent
CA 2663285
Cationic polymers having a molecular weight greater than about 200,000 can be added to the activated sludge in an MBR for industrial wastewater treatment for reasons, which include: conditioning the activated sludge; improving flux through a membrane in the MBR; reducing fouling of the of the membrane in the MBR; and reducing foaming of the activated sludge in the MBR.
Selon la présente invention, des polymères cationiques ayant un poids moléculaire supérieur à environ 200 000 peuvent être ajoutés à diverses fins à la boue activée dans un MBR (bioréacteur à membrane) chargé du traitement d'eaux usées industrielles, et notamment pour : conditionner la boue activée ; améliorer l'écoulement à travers une membrane dans le MBR ; réduire l'encrassement de la membrane du MBR ; et réduire le moussage de la boue activée dans le MBR.
Collins John H.
Yoon Seong-Hoon
Borden Ladner Gervais Llp
Nalco Company
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