Patent ID: 7326337

Claim:
A system intended for the oxidation of organic bodies present in an aqueous effluent, comprising: a tubular body ( 10 ) with an inlet ( 12 ) that accepts an injection of aqueous effluent having organic bodies present; means for injecting said aqueous effluent with organic bodies present into the inlet at a pressure P 1 corresponding to at least the critical pressure of the aqueous effluent, the tubular body ( 10 ) having a first zone ( 16 ) extending the inlet ( 12 ), a second zone ( 18 ) in which an oxidizing agent can be injected, and an outlet ( 14 ); means for injecting an oxidizing agent into said second zone; means ( 36 , 34 ) for providing a first quantity of thermal energy Q 1 raising the temperature of fluid passing through the tubular body ( 10 ) from an initial temperature to a higher intermediate temperature T 1 which is below the temperature at which the organic bodies oxidize into the first zone ( 16 ) of the tubular body ( 10 ); a tank ( 40 ) containing a combustible mixture; means ( 38 ) for injecting a definite quantity of said combustible mixture into the tubular body ( 10 ) at the pressure P 1 between the inlet ( 12 ) and the first zone ( 16 ) of the tubular body ( 10 ), wherein at least a first part of the combustible mixture injected between the inlet and the first zone ( 16 ) of the tubular body is controlled to react at an intermediate temperature T 1 to provide a second quantity of thermal energy Q 2 raising the temperature of the fluid to a reaction temperature T 2 at which the organic bodies oxidize; means for injection of oxidizing composition in the second zone ( 18 ) to bring about at least reaction of a second part of the combustible mixture providing a third quantity of energy Q 3 at the outlet ( 14 ) of the tubular body ( 10 ); and means for applying a fraction of the third quantity of energy Q 3 to the first zone ( 16 ) of the tubular body ( 10 ) to raise the temperature of the fluid passing through the first zone at least from the initial temperature to the intermediate temperature T 1 .