Removal of radioactive cesium from solutions by zinc ferrocyanide
RADIOCHEMISTRY, RADIOPHARMACEUTICALS AND NUCLEAR MEDICINE|Updated:2021-01-29
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Removal of radioactive cesium from solutions by zinc ferrocyanide
Nuclear Science and TechniquesVol. 19, Issue 2, (2008)
Affiliations:
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
Bing LI, Jiali LIAO, Jiaojiao WU, et al. Removal of radioactive cesium from solutions by zinc ferrocyanide. [J]. Nuclear Science and Techniques 19(2):88-92(2008)
DOI:
Bing LI, Jiali LIAO, Jiaojiao WU, et al. Removal of radioactive cesium from solutions by zinc ferrocyanide. [J]. Nuclear Science and Techniques 19(2):88-92(2008) DOI: 10.1016/S1001-8042(08)60029-9.
Removal of radioactive cesium from solutions by zinc ferrocyanide
Adsorption of ,134,Cs 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 ,134,Cs could be removed by zinc ferrocyanide of 0.33 g·L,-1, from ,134,Cs solution (,C,o) 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 ,134,Cs adsorption were observed at 0~50℃, or in solutions containing Ca,2+, Fe,3+, Mg,2+, HCO,3,-, CO,3,2-, Cl,-, and SO,4,2-, 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.
关键词
Keywords
Zinc ferrocyanide134CsAdsorptionRadioactive waste
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