Abstract Radioactive 137Cs is one of the most common and problematic radionuclides in nuclear wastes. Decontamination typically involves passing the waste in continuous flow through an agitated or fixed bed reactor containing an efficient sorbent. There are many articles in the literature describing a broad spectrum of highly efficient sorbents. However,their properties is often difficult, mainly because the experimental conditions used differ. We describe the series of experiments that need to be performed to characterize Cs sorbents and illustrate by comparing three of these that, for the extraction of trace elements, the kinetics and selectivity of the exchange process are far more important than the maximum extraction capacity of the material.

中文翻译：

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比较负载在二氧化硅、硅钛酸盐和菱沸石吸附剂上的六氰基铁酸盐与连续流固定床设置用于 Cs 提取：方法和陷阱

摘要 放射性 137Cs 是核废料中最常见和最有问题的放射性核素之一。净化通常包括将废物连续流过含有高效吸附剂的搅拌床或固定床反应器。文献中有许多文章描述了广泛的高效吸附剂。然而，它们的性质往往很难，主要是因为使用的实验条件不同。我们描述了需要进行的一系列实验来表征 Cs 吸附剂，并通过比较其中的三个来说明，对于痕量元素的提取，交换过程的动力学和选择性远比最大提取能力重要得多。材料。