Sr，Cs在不同产地黏土中的吸附

Adsorption of Sr and Cs by Clay From Different Area

摘要: 采用批式法对不同产地的18种黏土材料进行了⁹⁰Sr，¹³⁷Cs的吸附分配系数测定，比较了不同材料的吸附性能。结果表明，在吸附达平衡时，浙江沸石对Sr的吸附分配系数为2 112.0 mL/g；内蒙古赤峰沸石对Cs的吸附分配系数为3 495.0 mL/g；均位于所有样品之首。产地不同的黏土样品其吸附分配系数差异很大，Sr的吸附分配系数分布在22.4～2 112.0 mL/g，Cs的吸附分配系数分布在43.5～3 495.0 mL/g；大部分样品对Cs的吸附大于对Sr的吸附；相同样品对Sr，Cs的吸附性能趋势基本一致。

Abstract: Distribution coefficients of 18 clays to ⁹⁰Sr and¹³⁷Cs were determined and the adsorption capability of different material was compared. The results show that zeolite from Zhejiang has an adsorption ratio of 2 112.0 mL/g to Sr which is top in all samples, adsorption ratio of zeolite from Chifeng, Inner Mongolia to Cs is 3 495.0 mL/g, top of all samples. Adsorption ratio of clay samples from different area have great diversity. Adsorption ratio to Sr has a distribution from 22.4 to 2 112.0 mL/g. Adsorption ratio to Cs has a distribution from 43.5 to 3 495.0 mL/g. Adsorption of most samples to Cs are more than that to Sr, and the adsorption capability of same samples to Sr is same to that to Cs.