| 累托石对模拟核素Sr~(2+)、Cs~+、Co~(2+)的吸附性能研究 |
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| 引用本文： | 罗雪梅,冯启明,易发成. 累托石对模拟核素Sr~(2+)、Cs~+、Co~(2+)的吸附性能研究[J]. 应用化工, 2007, 36(7): 683-685,695 |
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| 作者姓名： | 罗雪梅 冯启明 易发成 |
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| 作者单位： | 西南科技大学,环境工程系,四川,绵阳,621010 |
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| 摘 要： | 分析湖北钟祥杨榨累托石矿床的累托石土样的基本物化特性的基础上,进行了累托石对模拟核素Sr2+、Cs+、Co2+的静态吸附性能的研究。实验表明,累托石的阳离子交换容量(CEC)为36.04 mmol/100 g,胀缩度为23.89%,渗透系数为6.94×10-8cm/s。在中性条件下,累托石对模拟核素Sr2+、Cs+、Co2+的平衡吸附量分别为70,48,20 mg/g。累托石对核素的吸附量会随着吸附时间的增加而逐渐趋于稳定。弱碱性条件下累托石的吸附效果更好。
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| 关 键 词： | 累托石 Sr2+、Cs+、Co2+ 吸附性能 |
| 文章编号： | 1671-3206（2007）07-0683-03 |
| 修稿时间： | 2007-03-10 |
Study on adsorption capacity of rectorite for simulated nuclide Sr2+,Cs+,Co2+ |
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| LUO Xue-mei,FENG Qi-ming,YI Fa-cheng. Study on adsorption capacity of rectorite for simulated nuclide Sr2+,Cs+,Co2+[J]. Applied chemical industry, 2007, 36(7): 683-685,695 |
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| Authors: | LUO Xue-mei FENG Qi-ming YI Fa-cheng |
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| Affiliation: | Department of Environmental Engineering, Southwest University of Science and Technology, Mianyang 621010, China |
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| Abstract: | On the basis of analyzing the basic physicochemical properties of Hubei rectorite soil sample,the adsorption capacity of rectorite for simulated nuclide Sr2+,Cs+,Co2+ has been studied.The experiment shows that the CEC value of rectorite is 36.04 mmol/100 g,the expansion and contraction degree is 23.89%,and the permeability coefficient is 6.94×10-8 cm/s.Under neutrality condition,the adsorption equilibrium quantity of rectorite for simulated nuclide Sr2+,Cs+,Co2+ are 70,48,20 mg/g respectively.The adsorption equilibrium quantity of rectorite for simulated nuclide will become stability with the increasing of the adsorption time.The adsorption effect of rectorite will be better in weak alkaline condition. |
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| Keywords: | rectorite Sr2 Cs Co2 adsorption capacity |
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