A - Human Necessities – 23 – C
Patent
A - Human Necessities
23
C
A23C 9/142 (2006.01) B01D 61/14 (2006.01) B01D 65/02 (2006.01) B01D 65/06 (2006.01)
Patent
CA 2092472
A method for treating raw milk to produce treated milk having a lower bacterial content than the raw milk. The milk is homogenized and within about 5 minutes from the homogenization, subjected to dynamic microfiltration, to yield a filtrate which has a lower bacterial content than the initial raw milk. When the flow rate of milk through the microfilter drops below a predetermined level, the dynamic microfilter is removed from milk filtration service, flushed with water, and returned to milk filtration service, the steps being repeated as necessary until the membrane cannot be rejuvenated to a minimum filtration capacity, at which time the membrane is subjected to chemical cleaning to essentially restore the original filtration capacity of the membrane.
Méthode de traitement du lait cru afin d'en réduire la teneur en bactéries. Le lait cru est d'abord homogénéisé puis, environ 5 minutes après le traitement, est soumis à une microfiltration dynamique afin d'obtenir un filtrat contenant moins de bactéries que le produit initial. Lorsque le débit du lait dans le microfiltre chute sous une valeur préétablie, le microfiltre dynamique est retiré, rincé avec de l'eau et remis dans le service de filtration, ces étapes étant répétées aussi souvent que nécessaire jusqu'à ce qu'il ne soit plus possible de redonner à la membrane une capacité minimale de filtration. € ce moment-là, on soumet la membrane à un nettoyage chimique pour lui redonner essentiellement sa capacité de filtration originale.
Alex Tony
Degen Peter John
Dehn Joseph W. Jr.
Marks & Clerk
Pall Corporation
LandOfFree
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