Method for treating water containing hardly decomposable...

C - Chemistry – Metallurgy – 02 – F

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C02F 1/28 (2006.01) B01D 61/02 (2006.01) B01D 61/04 (2006.01) B01D 61/16 (2006.01) B01D 65/02 (2006.01) C02F 1/32 (2006.01) C02F 1/44 (2006.01) C02F 1/72 (2006.01)

Patent

CA 2611311

A method for treating water containing a hardly-degradable substance, the method comprising the following steps (B) to (E): (B) adding an adsorbent to water containing a hardly-degradable substance to cause the adsorption of the hardly-degradable substance onto the adsorbent (a adsorption treatment step); (C) separating a solution passing through a filtration membrane to concentrate the adsorbent having the hardly-degradable substance attached thereto (a membrane filtration treatment step); (D) degrading the hardly-degradable substance adsorbed onto the concentrated adsorbent (a hardly-degradable substance degradation step); and (E) returning the adsorbent recycled after the hardly-degradable substance degradation back to the adsorption treatment step (B) (an adsorbent-returning step); and an apparatus for use in the treatment.

La présente invention concerne un procédé de traitement de l~eau contenant une substance faiblement dégradable, ledit procédé comprenant les étapes (B) à (E) suivantes : (B) ajout d~un adsorbant à l'eau contenant la substance faiblement dégradable, de manière à adsorber ladite substance sur ledit adsorbant (étape de traitement par adsorption) ; (C) séparation d~une solution par filtration sur une membrane, de manière à concentrer l~adsorbant sur lequel est adsorbé la substance faiblement dégradable (étape de traitement par filtration sur membrane) ; (D) dégradation de la substance faiblement dégradable adsorbée sur l~adsorbant concentré (étape de dégradation de la substance faiblement dégradable) ; et (E) réintroduction, au niveau de l~étape (B) de traitement par absorption, de l~adsorbant recyclé après dégradation de la substance faiblement dégradable (étape de recyclage de l~adsorbant). L~invention concerne également un dispositif à utiliser dans le cadre du traitement.

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