| 模拟高盐、高碱中低放废液水泥固化体的浸出性能 |
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| 引用本文： | 袁燕秋,李玉香,陈雅斓,吴浪.模拟高盐、高碱中低放废液水泥固化体的浸出性能[J].西南科技大学学报,2011,26(2). |
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| 作者姓名： | 袁燕秋 李玉香 陈雅斓 吴浪 |
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| 作者单位： | 西南科技大学四川省非金属复合与功能材料重点实验室,四川绵阳，621010 |
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| 基金项目： | 国防基础科研项目(A3120080126); 西南科技大学国防重点学科实验室重点培育项目(08zg610302) |
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| 摘 要： | 针对高盐、高碱中低水平放射性废液的特性,研究了掺合料的种类、掺量对水泥固化体Sr~(2+),Cs~(2+)的浸出性能的影响。结果表明,矿渣和粉煤灰同时掺入,对降低Sr~(2+)的浸出率较为明显;沸石、凹凸棒石的掺入,对降低Cs~+的浸出率显著。当硅酸盐水泥:矿渣:粉煤灰:沸石:凹凸棒石=4:2:2:1:1时,42 d Cs~+的累积浸出率仅为未含掺合料时的15.2%。浸出液的电导率表明,矿渣、粉煤灰、沸石、凹凸棒石的掺入对废液中的可溶性盐固化有利。用掺有矿渣、粉煤灰、沸石、凹凸棒石的硅酸盐水泥固化模拟高盐、高碱中低水平放射性废液时,固化体中Sr~(2+),Cs~+的浸出率可以满足GB14569.1-2011的要求。
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| 关 键 词： | 中低放射性废液 浸出率 水泥固化体 Sr~(2 ) Cs~ |
Study on Leaching Behavior of Cement Solidified Forms Containing Simulated High Salt and Alkali-Loaded Low and Intermediate Level Radioactive Liquid Waste |
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| YUAN Yan-qiu,LI Yu-xiang,CHEN Ya-lan,WU Lang.Study on Leaching Behavior of Cement Solidified Forms Containing Simulated High Salt and Alkali-Loaded Low and Intermediate Level Radioactive Liquid Waste[J].Journal of Southwest University of Science and Technology,2011,26(2). |
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| Authors: | YUAN Yan-qiu LI Yu-xiang CHEN Ya-lan WU Lang |
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| Institution: | YUAN Yan-qiu,LI Yu-xiang,CHEN Ya-lan,WU Lang (State Key Laboratory Cultivation Base for Nonmetal Composite and Functional Materials,Southwest University of Science and Technology,Mianyang 621010,Sichuan,China) |
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| Abstract: | The influence of the addition of mineral admixtures on the leaching behavior of Sr~(2+) and Cs~+ in cement solidified forms containing simulated high salt and alkali-loaded low and intermediate level radioactive liquid waste was investigated.The results show that the addition of both slag and fly-ash can reduce the leach rate of Sr~(2+),while the addition of zeolite and attapulgite can reduce the leach rate of Cs~+ obviously. The cumulative leach rate of Cs~+ in the solidified form with cement:slag:fly-ash:... |
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| Keywords: | Low and intermediate level radioactive liquid waste Leaching rate Cement solidified forms Sr~(2 ) Cs~ |
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