Process and apparatus for water decontamination

Details Process and apparatus for water decontamination Process and apparatus for water decontamination

C - Chemistry, Metallurgy

02

F

C02F 1/32 (2006.01) C02F 1/72 (2006.01) C02F 1/78 (2006.01)

Patent

CA 2684237

A method for removing N-nitroso-dimethylamme (NDMA) and its derivatives (e.g. dimethylamine) from water. The method combines ultra-violet irradiation and ozonation. Hydrogen peroxide may be added to the treated water during ozonation. The method allows also to remove volatile organic compounds present in the treated water and to destroy microorganisms. A modular sidestream injection apparatus used during the ozonation step.

L'invention concerne un procédé pour l'élimination de la N-nitroso-diméthylamme (NDMA) et de ses dérivés (par exemple la diméthylamine) de l'eau. Le procédé combine une irradiation aux rayons ultraviolets et un traitement à l'ozone. Le procédé permet également d'éliminer les composés organiques volatils présents dans l'eau traitée et de détruire les microorganismes. Un appareil d'injection secondaire modulaire est utilisé pendant l'étape de traitement à l'ozone.

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