| 摘要 |
PROBLEM TO BE SOLVED: To provide a method which can prevent intermediate products from entering a condensate in an oxidative decomposition reaction made as a result of a process and can reuse or release the condensate without the necessity of a secondary treatment when an organic substance that coexists with radioactive nuclides is treated by wet oxidation using hydrogen peroxide and a device used for the implementation of the method. SOLUTION: In a method for treating radioactive organic wastes whose essential process is that they are oxidatively decomposed by reacting hydrogen peroxide on the radioactive organic wastes under the existence of iron ions and (or) copper ions in an aqueous medium, a mixture of steam and an intermediate product containing at least one of low-molecular-weight organic acid, amines, ammonia, a cyanogen compound and carbon hydride generated as a result of the oxidative decomposition reaction is taken out from an oxidation reaction tank 2 and is heated to raise the temperature and then the mixture is guided to a catalyst combustion device 4 equipped with an oxidative catalyst. In the device 4, oxygen is supplied to oxidatively decompose the intermediate product secondarily and then it is cooled in a condenser 5 to obtain a condensate that does not contain TOC (organic carbon content) materially and a harmless and non-odorous exhaust gas.
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