小溶解度核素在孔隙介质地下水中迁移数学模型的修正

Abstract

Abstract: When the general sorption relations between nuclide concentration dissolving in groundwater and that in solid phase are used to simulating farinose low solubility radioactive waste migration, an unreasonable result that the nuclide concentration in groundwater is larger than its solubility may occur. The model including the reversible linear sorption relation is considered in this paper. The general model is modified by taking the solubility limit into account. A hypothetical calculating example is numerically simulated by the modified model and the general model respectively. The result testifies the rationality of the modified model, that is, the phenomena of nuclide concentration larger than the solubility will not happen even if the initial nuclide concentration in solid phase is very large. When the initial concentration of nuclide is small enough, the simulating result of the modified model is consistent with the result of the general model.

Key words: groundwater, radionuclide migration, solubility

CLC Number:

Wang Tieliang, Zhang Jianxin, Cao Yuan. Modified Mathematic Model of Low Solubility Nuclide Migration in Porous Media[J].RADIATION PROTECTION, 2014, 34(3): 129-133.

References

[1] 韩凝, 陈李雄, 夏建新. 多沙河流中持久性有机污染物迁移转化影响因素分析[J]. 应用基础与工程科学学报, 2009,17(增刊):125-134.
[2] 韦尚正, 席北斗, 张化永,等. 地下水中多环芳烃迁移转化研究[J]. 环境污染与防治, 2009,31(10):71-75.
[3] 陆建生, 仵彦卿, 马长文, 等. 多孔介质中三氯乙烯的非线性吸附-对流-弥散模型[J]. 生态环境,2008,17(1):28-34.
[4] 李朝丽, 周立祥. 我国几种典型土壤不同粒级组分对镉吸附行为影响研究[J]. 农业环境科学学报, 2007, 26(2):516-520.
[5] Chang Lak Kim, Chan Hee Cho, Heui Joo Choi. Equilibrium concentration and diffusion controlled leaching model for cementbased waste forms[J]. Waste Management, 1995, 15(5/6):449-455.
[6] Kim JY, Kim CL, Chung CH. Modeling of nuclide release from low-level radioactive paraffin waste: a comparison of simulated and real waste[J]. Journal of Harzardous Materals,2002,B94:161-178.
[7] 魏海, 沈振中, 况代智. 高放废物地质处置系统核素迁移模型研究[J]. 水文地质工程, 2006, (6):89-93.
[8] Bear J, Verruijt A. Modeling groundwater flow and pollution[M]. Holland: Dordrencht, 1987: 174-177.
[9] Bear J. Hydraulics of groundwater[M]. New York: McGraw-Hill Inc, 1979.
[10] 李书绅,王志明,郭择德, 等. 核素在非饱和黄土中迁移研究[M]. 北京:原子能出版社,2003:262-271.
[11] 王金生, 李书绅, 王志明, 等. 核素在非饱和带中迁移的非平衡吸附数值模式—NESOR[J]. 辐射防护, 2000, 20(1-2):62-67.
[12] 钱天伟, 刘春国. 饱和-非饱和土壤污染物运移[M]. 北京:中国环境科学出版社, 2007:196-198.
[13] 仵彦卿编著.多孔介质污染物迁移动力学[M]. 上海:上海交通大学出版社, 2007:90-93.
[14] 王洪涛. 多孔介质污染物迁移动力学[M]. 北京:高等教育出版社, 2008:49-55.
[15] 陈家军, 王金生, 李合莲. 非平衡吸附对核素迁移的影响及平衡速率参数的确定[J]. 中国环境科学, 2000, 20(1):73-76.

Modified Mathematic Model of Low Solubility Nuclide Migration in Porous Media

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