Method for controlling the integrity of a nanofiltration or...

Details Method for controlling the integrity of a nanofiltration or... Method for controlling the integrity of a nanofiltration or...

B - Operations, Transporting

01

D

B01D 65/10 (2006.01) G01N 15/08 (2006.01)

Patent

CA 2411320

The invention concerns a method for controlling a nanofiltration or reverse osmosis module system designed for treating a supply fluid or for detecting living micro-organism leaks, each module comprising nanofiltration or reverse osmosis membranes and joints connecting said membranes, including steps which consist in: selecting in the supply fluid a dissolved compound present in significant amount but normally highly retained by the membranes; measuring the concentration value of said compound in a downstream zone of a module of said system; comparing said measured value with a reference value; and recognising the existence of a fault in said zone of the system when said measured value is higher than the reference value.

Procédé de contrôle de l'intégrité d'un système de modules de nanofiltration ou d'osmose inverse destiné au traitement d'un fluide d'alimentation et de détection de fuites en micro-organismes vivants, chaque module comportant des membranes de nanofiltration ou d'osmose inverse et des joints de connexion de ces membranes, comportant des étapes consistant à: choisir dans le fluide d'alimentation un composé dissous présent en quantité significative mais normalement fortement arrêté par les membranes; mesurer la valeur de la concentration de ce composé dans une zone aval d'un modul e de ce système; comparer cette valeur mesurée à une valeur de référence, et reconnaître l'existence d'un défaut dans cette zonedu système lorsque cette valeur mesurée est supérieure à lavaleur de référence.

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