Radionuclide transport model for risk evaluation of high-level radioactive waste in Northwestern China
Radionuclide transport model for risk evaluation of high-level radioactive waste in Northwestern China
复制标题
西北地区高放废物风险评价的放射性核素输运模型
DOI:
10.1080/10807039.2017.1361811
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发表时间:
2017-09
影响因子:
4.3
通讯作者:
Wang Jingrui
中科院分区:
文献类型:
--
作者:
Cao Xiaoyuan;Hu Litang;Wang Jinsheng;Wang Jingrui
ABSTRACT The proper disposal of high-level radioactive waste (HLRW) is highly challenging. Numerical simulations are helpful methods of evaluating the risks of radionuclide transport. This paper examines the hydrogeological conditions of a prospective HLRW repository in China. A regional radionuclide transport model is first constructed using the TOUGH2-MP/EOS7R module at a site in northwestern China to evaluate radionuclide transport behavior. A flow model calibration under a steady state shows that the simulated and observed hydraulic heads match well. Hypothetical radionuclides (90Sr, 137Cs, 235U and 239Pu) are assumed to be instantaneously released at three locations with large groundwater velocities. Transport modeling shows that 235U is the most sensitive element and has the plume size (2400 m) after 10,000 years. Sensitivity analyses of parameters, including the permeability, distribution coefficient and diffusion coefficient, are carried out. The results show that the distribution coefficient is the most critical parameter for nuclide transport. These findings will provide a preliminary reference for the radionuclide migration process at a prospective HLRW disposal site, which could be informative for safety analyses and further transport in and around the repository system.
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影响因子:
1.5
作者:
Heinz Bachhuber-;K. Bunzl;Wolfgang Schimmack-;I. Gans
通讯作者:
Heinz Bachhuber-;K. Bunzl;Wolfgang Schimmack-;I. Gans
DOI:
10.1080/10807039.2014.957945
发表时间:
2015-07
期刊:
Human and Ecological Risk Assessment: An International Journal
影响因子:
--
作者:
X. Zeng;Dong Wang;Jichun Wu;Xiaobin Zhu;Lachun Wang;X. Zou
通讯作者:
X. Zeng;Dong Wang;Jichun Wu;Xiaobin Zhu;Lachun Wang;X. Zou
DOI:
--
发表时间:
2015
期刊:
--
影响因子:
--
作者:
Cnnc Key
通讯作者:
Cnnc Key
DOI:
10.1016/j.ijrmms.2013.09.003
发表时间:
2013-12-01
影响因子:
7.2
作者:
Zhao, X. G.;Cai, M.;Ma, L. K.
通讯作者:
Ma, L. K.
DOI:
--
发表时间:
2012
期刊:
--
影响因子:
--
作者:
Wei Hong-gang
通讯作者:
Wei Hong-gang