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在核电站运行事故条件下,会释放裂变产物碘或碘的化合物,其中相当份额转化为有机碘,主要是甲基碘。裂变产物碘转化为甲基碘的比例,数据相当分散,从小于1%到大于20%,具体数值取决于核电站运行工况和环境化学条件。从二氧化铀燃料释出甲基碘的量大于金属铀燃料。采用经化学试剂浸渍处理的活性炭净化核电站放射性废气中的甲基碘行之有效。常用的浸渍剂为碘化钾和三乙撑二胺。
Under operational accident conditions in nuclear power plants, compounds that release iodine or iodine as fission products are released, a considerable portion of which is converted to organic iodine, mainly methyl iodide. The ratio of fission product iodine to methyl iodide data is quite variable, ranging from less than 1% to more than 20%, depending on the operating conditions and environmental chemistry of the plant. The amount of methyl iodide released from uranium dioxide fuels is greater than that of metallic uranium fuels. The use of activated carbon impregnated with chemical reagents to purify methyl iodide in radioactive waste gas from nuclear power plants is effective. Commonly used impregnating agents are potassium iodide and triethylene diamine.