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Hydrologic issues associated with nuclear waste repositories
KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology, Chemical Engineering.
2015 (English)In: Water resources research, ISSN 0043-1397, E-ISSN 1944-7973, Vol. 51, no 9, 6923-6972 p.Article in journal (Refereed) Published
Abstract [en]

Significant progress in hydrology, especially in subsurface flow and solute transport, has been made over the last 35 years because of sustained interest in underground nuclear waste repositories. The present paper provides an overview of the key hydrologic issues involved, and to highlight advances in their understanding and treatment because of these efforts. The focus is not on the development of radioactive waste repositories and their safety assessment, but instead on the advances in hydrologic science that have emerged from such studies. Work and results associated with three rock types, which are being considered to host the repositories, are reviewed, with a different emphasis for each rock type. The first rock type is fractured crystalline rock, for which the discussion will be mainly on flow and transport in saturated fractured rock. The second rock type is unsaturated tuff, for which the emphasis will be on flow from the shallow subsurface through the unsaturated zone to the repository. The third rock type is clay-rich formations, whose permeability is very low in an undisturbed state. In this case, the emphasis will be on hydrologic issues that arise from mechanical and thermal disturbances; i.e., on the relevant coupled thermo-hydro-mechanical processes. The extensive research results, especially those from multiyear large-scale underground research laboratory investigations, represent a rich body of information and data that can form the basis for further development in the related areas of hydrologic research.

Place, publisher, year, edition, pages
American Geophysical Union (AGU), 2015. Vol. 51, no 9, 6923-6972 p.
Keyword [en]
flow and solute transport, fractured rocks, unsaturated zone, coupled processes, data integration
National Category
Geophysical Engineering
Identifiers
URN: urn:nbn:se:kth:diva-176988DOI: 10.1002/2015WR017641ISI: 000363391300005Scopus ID: 2-s2.0-84944352700OAI: oai:DiVA.org:kth-176988DiVA: diva2:871986
Note

QC 20151117

Available from: 2015-11-17 Created: 2015-11-13 Last updated: 2017-12-01Bibliographically approved

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