【作者】 李敏； 范显华； 魏连生； 章英杰； 矫海洋；

【Author】 LI Min FAN Xian-hua WEI Lian-sheng ZHANG Ying-jie JIAO Hai-yang (China Institute of Atomic Energy,Beijing,102413)

【机构】 中国原子能科学研究院；

【摘要】 本文采用批式法研究了吸附时间、矿物粒度、固液比、起始溶液浓度、pH以及还原离子等对锝在含锑矿物上的吸附行为的影响。根据七价锝和四价锝在辉锑矿和锑赭石上的吸附比,得出七价锝还原成四价锝可提高锝吸附的结论,为高放废物深地质处置回填缓冲材料的选择提供了参考数据。更多还原

【Abstract】 The study on adsorption behavior of technetium on antimonial minerals is performed in batch experiments and the influence of adsorption time,mineral granularity,solid-liquid ratio,initial concentration,pH value and reducing ion.On technetium adsorption are considered according to adsorption ratios of heptavalent and quadrivalent technetium on stibnite and antimony ocher,the results show that reduction of technetium from heptavelence to quadrivalence could improve adsorption ratios,which provide reference data for selecting buffer-backfill materials in high level radwaste deep geological diposal.更多还原