Thermal treatment of simulant plutonium contaminated materials from the Sellafield site by vitrification in a blast-furnace slag

Thermal treatment of simulant plutonium contaminated materials from the Sellafield site by vitrification in a blast-furnace slag
复制标题

通过在高炉矿渣中玻璃化对来自塞拉菲尔德场地的模拟钚污染材料进行热处理

DOI:
10.1016/j.jnucmat.2013.08.019
复制
发表时间:
2014
影响因子:
3.1
通讯作者:
Hyatt N
Hyatt N
中科院分区:
工程技术2区
文献类型:
--
作者:
Hyatt N

文献摘要

参考文献

被引文献

相似文献

通过添加磨碎的高炉矿渣(GGBS),对塞莱菲尔德核电站的四种以钚污染材料(PCM)为代表的废物模拟物进行了玻璃化处理。Ce(作为Pu替代物)有效地分配到炉渣产物中,在存在其他晶相的情况下,富存在非晶态CaO-Fe2O3-Al_2O_3-SiO_2相中。Ce L3edge XANES数据表明,无论废物类型如何,Ce在炉渣组分中以三价物种存在。与未压实的200个L中药材废桶的基线相比,估计的体积减少了约80%-95%。为模拟英国中级废物水泥化地质处置设施(ILW)的高碱性缺氧环境,研究了PCM废渣在50℃下在饱和Ca(OH)2溶液中的溶解行为。这些实验证明,这些废渣的性能可以与其他被认为可能适合于地质处置的玻璃化ILW材料相媲美。
Four waste simulants, representative of Plutonium Contaminated Materials (PCMs) at the Sellafield site, were vitrified through additions of Ground Granulated Blast-furnace Slag (GGBS). Ce (as a Pu surrogate) was effectively partitioned into the slag product, enriched in an amorphous CaO–Fe2O3–Al2O3–SiO2phase when other crystalline phases were also present. Ce L3edge XANES data demonstrated Ce to be present as trivalent species in the slag fraction, irrespective of the waste type. Estimated volume reductions of ca. 80–95% were demonstrated, against a baseline of uncompacted 200 L PCM waste drums. The dissolution behaviour of PCM slag wasteforms was investigated at 50 °C in saturated Ca(OH)2solution under N2atmosphere, to simulate the hyperalkaline anoxic environment of a cementitious UK Geological Disposal Facility for Intermediate Level Waste (ILW). These experiments demonstrated the performance of the slag wasteforms to be comparable to that of other vitrified ILW materials considered potentially suitable for geological disposal.
水泥化合物上锕系元素的吸附
DOI: 10.1016/0925-8388(94)90986-5
发表时间: 1994
影响因子: 6.2
作者:
C. Altenhein;H. Bischoff;L. Fu;J. Mao;G. Marx
通讯作者: G. Marx
DOI: 10.1107/s0909049505012719
发表时间: 2005-07-01
影响因子: 2.5
作者:
Ravel, B;Newville, M
通讯作者: Newville, M
不锈钢中锕系元素的分布 - 15 wt% 锆高放核废料
DOI: 10.1016/s0022-3115(00)00002-7
发表时间: 2000
影响因子: 3.1
作者:
D. Keiser;D. Abraham;W. Sinkler;J. Richardson;S. McDeavitt
通讯作者: S. McDeavitt
DOI: 10.1039/an9891400339
发表时间: 1989
期刊: Analyst
影响因子: 4.2
作者:
J. Berry;J. Hobley;S. Lane;A. Littleboy;Melanie J. Nash;P. Oliver;J. Smith;Stephen J. Williams
通讯作者: Stephen J. Williams
DOI: --
发表时间: 2011
期刊:
影响因子: --
作者:
A. Connelly;R. Hand;P. Bingham;N. Hyatt
通讯作者: N. Hyatt