Water purification method, process and apparatus

C - Chemistry – Metallurgy – 02 – F

Patent

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Details

C02F 1/04 (2006.01) B01D 5/00 (2006.01) C02F 1/26 (2006.01)

Patent

CA 2628008

In the water purification process, apparatus, and method, contaminated water vapor (13) is exposed to liquid solvent (34), which causes a transfer of contaminants from the contaminated water vapor (13) to the liquid solvent (34). In an advantageous embodiment, this latter step is followed by a second purification step where the decontaminated water (36) in liquid phase is exposed to water vapor (44) which causes a transfer of solvent remaining in the decontaminated water (36) to the water vapor (44). The energy freed during the condensation of the vapor can advantageously be used for evaporation of the liquids, optionally by compressing the vapors prior to condensation thereof within heat exchangers.

L'invention concerne un traitement, un appareil et un procédé d'épuration des eaux dans lesquels une vapeur d'eau contaminée (13) est exposée à un solvant liquide (34), qui entraîne un transfert de contaminants de la vapeur d'eau contaminée (13) au solvant liquide (34). Dans un mode de réalisation avantageux, cette dernière étape est suivie d'une seconde étape d'épuration dans laquelle l'eau décontaminée (36) en phase liquide est exposée à une vapeur d'eau (44) qui entraîne un transfert du solvant restant dans l'eau décontaminée (36) dans la vapeur d'eau (44). L'énergie libérée pendant la condensation de la vapeur peut être avantageusement utilisée pour l'évaporation des liquides, éventuellement par compression des vapeurs avant leur condensation dans des échangeurs thermiques.

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