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在低中放废物处置设施中研究 H、Tc 和 Sr 在断裂岩石中的迁移以及裂隙填充/覆盖材料的影响。

Investigation of H, Tc, and Sr transport in fractured rock and the effects of fracture-filling/coating material at LILW disposal facility.

机构信息

Division of Advanced Nuclear Engineering (DANE), Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, Gyungbuk, 790-784, South Korea.

Division of Environmental Science and Engineering (DESE), Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Pohang, South Korea.

出版信息

Environ Geochem Health. 2019 Feb;41(1):411-425. doi: 10.1007/s10653-018-0123-y. Epub 2018 May 23.

DOI:10.1007/s10653-018-0123-y
PMID:29796958
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6510849/
Abstract

Batch adsorption, batch diffusion, and flow-through column experiments were conducted using groundwater and fractured rock collected in unsaturated zone to increase our understanding of sorption and transport behavior of radionuclides. Increasing K values were observed in the sequence Sr, Tc, and H regardless of the geological media tested. For all sorbing radionuclides, K values for the fracture-filling/coating material were observed to be higher than those for without fracture-filling/coating material regardless of the groundwater. These higher K values are the result of zeolite mineral in filling/coating material of fractured rock. The batch diffusion and flow-through column experiments were also conducted using the same fractured rock sample, and the results of diffusion and column experiments showed similar trend of radionuclide sorption and transport to sorption experiment. In this study, sorption K of radionuclide was determined and used to increase our understanding of radionuclide retardation through fracture-filling/coating materials.

摘要

采用非饱和带采集的地下水和裂隙岩进行批量吸附、批量扩散和流动柱实验，以加深对放射性核素吸附和迁移行为的理解。无论测试的地质介质如何，Sr、Tc 和 H 的 K 值均呈递增趋势。对于所有吸附放射性核素，裂隙填充/涂层材料的 K 值均高于无裂隙填充/涂层材料，无论地下水如何。这些较高的 K 值是填充/涂层材料中的沸石矿物的结果。还使用相同的裂隙岩样品进行了批量扩散和流动柱实验，扩散和柱实验的结果表明放射性核素吸附和迁移的趋势与吸附实验相似。在本研究中，确定了放射性核素的吸附 K 值，以加深对放射性核素通过裂隙填充/涂层材料的阻滞作用的理解。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d325/6510849/49bf104aa260/10653_2018_123_Fig10_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d325/6510849/70158caece4b/10653_2018_123_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d325/6510849/c035ac805576/10653_2018_123_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d325/6510849/442860f12cf9/10653_2018_123_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d325/6510849/c5413855a98d/10653_2018_123_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d325/6510849/ceb2c0fff353/10653_2018_123_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d325/6510849/c4c40671893e/10653_2018_123_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d325/6510849/28dc69bb6f35/10653_2018_123_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d325/6510849/bf7a9b400f08/10653_2018_123_Fig8_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d325/6510849/c0e18731300a/10653_2018_123_Fig9_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d325/6510849/49bf104aa260/10653_2018_123_Fig10_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d325/6510849/70158caece4b/10653_2018_123_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d325/6510849/c035ac805576/10653_2018_123_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d325/6510849/442860f12cf9/10653_2018_123_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d325/6510849/c5413855a98d/10653_2018_123_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d325/6510849/ceb2c0fff353/10653_2018_123_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d325/6510849/c4c40671893e/10653_2018_123_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d325/6510849/28dc69bb6f35/10653_2018_123_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d325/6510849/bf7a9b400f08/10653_2018_123_Fig8_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d325/6510849/c0e18731300a/10653_2018_123_Fig9_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d325/6510849/49bf104aa260/10653_2018_123_Fig10_HTML.jpg

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