The role of the HADES URL in better understanding of the Boom Clay pore water geochemistry
When assessing a rock formation for its suitability as a potential host rock for the disposal of radioactive waste, knowledge about its pore water chemical composition is essential. When the HADES underground research laboratory became operational in the early 1980s, it offered the possibility of ex...
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| フォーマット: | Online |
| 言語: | 英語 |
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Geological Society of London
2024
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| オンライン･アクセス: | https://directory.doabooks.org/handle/20.500.12854/139678.2 |
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| _version_ | 1869518872011341824 |
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| author | De Craen, Mieke Moors, Hugo Honty, Miroslav Van Geet, Maarten |
| author_browse | De Craen, Mieke Honty, Miroslav Moors, Hugo Van Geet, Maarten |
| author_facet | De Craen, Mieke Moors, Hugo Honty, Miroslav Van Geet, Maarten |
| author_sort | De Craen, Mieke |
| collection | Directory of Open Access Books |
| description | When assessing a rock formation for its suitability as a potential host rock for the disposal of radioactive waste, knowledge about its pore water chemical composition is essential. When the HADES underground research laboratory became operational in the early 1980s, it offered the possibility of extracting pore water from Boom Clay. At the time, however, there was almost no experience of sampling pore water from deep clay formations. The low hydraulic conductivity of clays makes it difficult to extract pore water and the sampling process itself can induce changes in the observed chemical characteristics due to oxidation and re-equilibration with the ambient air. In the past decades, significant progress has been made in the techniques and protocols to sample and monitor pore water. The use of nitrogen instead of compressed air to drill boreholes and installing piezometers limited the disturbances induced by oxidation of the clay. Furthermore, an advanced system was developed to simultaneously sample pore water and dissolved gases and measure some key geochemical parameters such as pH, pCO2 and redox potential under in situ conditions. This has resulted in a more reliable characterization of the Boom Clay pore water and a better understanding of perturbing processes such as oxidation. |
| format | Online |
| id | doab-20.500.12854ir-139678.2 |
| institution | Directory of Open Access Books |
| language | eng |
| publishDate | 2024 |
| publishDateRange | 2024 |
| publishDateSort | 2024 |
| publisher | Geological Society of London |
| publisherStr | Geological Society of London |
| record_format | ojs |
| spelling | doab-20.500.12854ir-139678.22024-07-05T15:21:53Z The role of the HADES URL in better understanding of the Boom Clay pore water geochemistry De Craen, Mieke Moors, Hugo Honty, Miroslav Van Geet, Maarten Boom clay Economic geology Environmental geology Radioactive waste Geochemistry thema EDItEUR::R Earth Sciences, Geography, Environment, Planning thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TQ Environmental science, engineering and technology When assessing a rock formation for its suitability as a potential host rock for the disposal of radioactive waste, knowledge about its pore water chemical composition is essential. When the HADES underground research laboratory became operational in the early 1980s, it offered the possibility of extracting pore water from Boom Clay. At the time, however, there was almost no experience of sampling pore water from deep clay formations. The low hydraulic conductivity of clays makes it difficult to extract pore water and the sampling process itself can induce changes in the observed chemical characteristics due to oxidation and re-equilibration with the ambient air. In the past decades, significant progress has been made in the techniques and protocols to sample and monitor pore water. The use of nitrogen instead of compressed air to drill boreholes and installing piezometers limited the disturbances induced by oxidation of the clay. Furthermore, an advanced system was developed to simultaneously sample pore water and dissolved gases and measure some key geochemical parameters such as pH, pCO2 and redox potential under in situ conditions. This has resulted in a more reliable characterization of the Boom Clay pore water and a better understanding of perturbing processes such as oxidation. Published 2024-07-05T15:21:48Z 2024-07-05T14:23:12Z 2024-07-05T15:21:48Z 2023-02-20 chapter 9781786205933 https://directory.doabooks.org/handle/20.500.12854/139678.2 eng Geological Society Special Publications application/octet-stream Attribution-NonCommercial-NoDerivatives 4.0 International https://www.lyellcollection.org/doi/full/10.1144/SP536-2022-93 Geological Society of London Geological Disposal of Radioactive Waste in Deep Clay Formations: 40 Years of RD&D in the Belgian URL HADES https://doi.org/10.1144/SP536-2022-93 https://doi.org/10.1144/SP536-2022-93 0742c201-37ab-44ae-8f4e-a768089f313c fa1cba04-9782-4da9-985d-e8f3cc9d75d2 9781786205933 536 11-32 Bath, UK open access |
| spellingShingle | Boom clay Economic geology Environmental geology Radioactive waste Geochemistry thema EDItEUR::R Earth Sciences, Geography, Environment, Planning thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TQ Environmental science, engineering and technology De Craen, Mieke Moors, Hugo Honty, Miroslav Van Geet, Maarten The role of the HADES URL in better understanding of the Boom Clay pore water geochemistry |
| title | The role of the HADES URL in better understanding of the Boom Clay pore water geochemistry |
| title_full | The role of the HADES URL in better understanding of the Boom Clay pore water geochemistry |
| title_fullStr | The role of the HADES URL in better understanding of the Boom Clay pore water geochemistry |
| title_full_unstemmed | The role of the HADES URL in better understanding of the Boom Clay pore water geochemistry |
| title_short | The role of the HADES URL in better understanding of the Boom Clay pore water geochemistry |
| title_sort | role of the hades url in better understanding of the boom clay pore water geochemistry |
| topic | Boom clay Economic geology Environmental geology Radioactive waste Geochemistry thema EDItEUR::R Earth Sciences, Geography, Environment, Planning thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TQ Environmental science, engineering and technology |
| topic_facet | Boom clay Economic geology Environmental geology Radioactive waste Geochemistry thema EDItEUR::R Earth Sciences, Geography, Environment, Planning thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TQ Environmental science, engineering and technology |
| url | https://directory.doabooks.org/handle/20.500.12854/139678.2 |
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