| 摘要 |
PROBLEM TO BE SOLVED: To easily and simply decontaminate and selectively dispose of concrete wastes largely different in contamination level and improve the disposing efficiency. SOLUTION: Concrete waste contaminated with uranium is crushed to remove aggregate and be pulverized. After that, the pulverized powder is dispersed by water to be injected as a dispersed liquid into a sorting pipe, thereby sorting and dividing it into high and low contaminated powder depending on floating and precipitation difference. The sorted powder is filtered and then dried at a low temperature.
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