Method for treating radioactive solid organic waste
An organic waste and radioactive technology, applied in radioactive purification, nuclear engineering, etc., can solve the problems of unsolved radioactive solid organic waste transportation, small amount of radioactive waste treatment, separation of radionuclide, etc., to achieve overall concise and effective, waste The effect of increasing volume reduction ratio and fast response speed
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[0042] Example 1: Treatment of radioactive solid organic waste (1)
[0043] (1) Use a colloid mill to crush 10 kg of radioactive waste resin, and the crushing time is 10 minutes, until the radioactive waste resin is crushed 10-15 times, and the particle size of the radioactive waste resin reaches 5-10 μm. The initial TOC of the smashed radioactive waste resin is measured R = 119850 ppm.
[0044] (2) Add Cu with a concentration of 0.1mol / L to the waste radioactive resin 2+ Catalyst (Cu(NO 3 ) 2 ) Stir and heat. After the temperature reaches 90°C, use a peristaltic pump to slowly add hydrogen peroxide. When the amount of hydrogen peroxide reaches 4.8L (corresponding to a mass of 5.3kg), stir for another 15-30 minutes. The dissolved radioactive waste resin solution was cooled and filtered, and 100 mL of propanol was added as a combustion-supporting agent as the material liquid for the supercritical water reaction.
[0045] (3) The feed liquid and liquid oxygen are pumped together throu...
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[0048] Example 2: Treatment of radioactive solid organic waste (2)
[0049] The treatment method of radioactive solid organic waste is basically the same as in Example 1, except that Cu is eliminated in step (1) 2+ Addition of catalyst. Measured initial TOC R =99850ppm, pH of effluent liquid sampling is 3, and TOC of effluent liquid sampling is 3050ppm. According to the above formula (1), η = 96.95% can be obtained.
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[0050] Example 3: Treatment of radioactive solid organic waste (3)
[0051] The treatment method of radioactive solid organic waste is basically the same as that of Example 1, except that the reaction temperature is changed to 800° C. and the reaction pressure is 10 MPa in step (3). Measured initial TOC R =109700ppm, the pH of the effluent liquid sampling is 3, and the TOC of the effluent liquid sampling is 34ppm. According to the above formula (1), η=99.97% can be obtained.
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