Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2019 Impact factor 1.556

Nuclear Science and Techniques ›› 2008, Vol. 19 ›› Issue (2): 88 doi: 10.1016/S1001-8042(08)60029-9


Removal of radioactive cesium from solutions by zinc ferrocyanide

LI Bing1 LIAO Jiali1 WU Jiaojiao1 ZHANG Dong2 ZHAO Jun2 YANG Yuanyou1 CHENG Qiong2 FENG Yue1 LIU Ning1,*   

  1. 1 Key Laboratory of Radiation Physics and Technology of Education Ministry of China, Institute of Nuclear Science and Technology, Sichuan University, Chengdu 610064, China
    2 Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621900, China
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LI Bing LIAO Jiali WU Jiaojiao ZHANG Dong ZHAO Jun YANG Yuanyou CHENG Qiong FENG Yue LIU Ning . Removal of radioactive cesium from solutions by zinc ferrocyanide.Nuclear Science and Techniques, 2008, 19(2): 88     doi: 10.1016/S1001-8042(08)60029-9

Abstract: Adsorption of 134Cs from aqueous solution by zinc ferrocyanide, and the effect of experimental conditions on the adsorption were investigated. Preliminary results showed that zinc ferrocyanide was very efficient as an absorbent. Over 98% of 134Cs could be removed by zinc ferrocyanide of 0.33 g·L-1 from 134Cs solution (Co) of 3.2~160.0 kBq·L-1, with adsorption capacities (Q) of 9.6~463.0 kBq·g -1. The adsorption equilibrium time was within one hour and the suitable pH ranged 1~10. No significant differences on 134Cs adsorption were observed at 0~50℃, or in solutions containing Ca2+, Fe3+, Mg2+, HCO3-, CO32-, Cl- and SO42-, even though they are 1000 times higher than the anions or cations in groundwater. However, the adsorption rates decreased when solutions contained K+ or Na+. The adsorption process could be described by Freundlich and Langmuir adsorption equations.

Key words: Zinc ferrocyanide, 134Cs, Adsorption, Radioactive waste