Oxidation of wastewaters

Details Oxidation of wastewaters Oxidation of wastewaters

C - Chemistry, Metallurgy

02

F

362/15

C02F 1/74 (2006.01) C02F 11/08 (2006.01)

Patent

CA 1258323

ABSTRACT OF THE DISCLOSURE The present invention relates to an improved process for the wet oxidation of water soluble organic pollutants or of an aqueous suspension of organic pol- lutants. In the contacting of an oxidizing gas and a polluted aqueous phase, the improvement comprises form- ing a fine mist of the polluted aqueous phase in the presence of the oxidizing gas, thereby increasing the interfacial area between the gas and the polluted aque- ous phase. Then the formed mist is introduced into a heated reaction chamber under pressure, thereby enhanc- ing the rate of the destructive oxidation of the organic pollutant by the increase in mass transfer between the gaseous phase and the aqueous mist, the reaction temper- ature being selected to favor rapid destruction of the pollutant without the formation of stable intermediate reaction products. After destruction of the pollutants, the reaction mixture is allowed to flash off at a pres- sure lower than the reaction pressure.

551730

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