Predicting Mineral Alteration at the Potential Nuclear Waste Repository at Yucca Mountain, NV With Reactive Transport Modeling
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منابع مشابه
Simulation of Two-phase Carbon-14 Transport at Yucca Mountain, Nevada
In support of Pacific Northwest Laboratory's (PNL) preliminary total system performance assessment of the proposed high-level nuclear-waste repository at Yucca Mountain, transport of carbon-14 (Cl4) in the unsaturated zone was numerically modeled with the Multiphase Subsurface Transport Simulator (MSTS). Total system performance assessments are being conducted to estimate potential cumulative r...
متن کاملFluid flow and reactive transport around potential nuclear waste emplacement tunnels at Yucca Mountain, Nevada.
The evolution of fluid chemistry and mineral alteration around a potential waste emplacement tunnel (drift) is evaluated using numerical modeling. The model considers the flow of water, gas, and heat, plus reactions between minerals, CO(2) gas, and aqueous species, and porosity-permeability-capillary pressure coupling for a dual permeability (fractures and matrix) medium. Two possible operating...
متن کاملReply to "Commentary: Assessment of past infiltration fluxes through Yucca Mountain on the basis of the secondary mineral record-is it a viable methodology?", by Y.V. Dublyansky and S.Z. Smirnov
Xu et al. (2003) presented results of a reaction-transport model for calcite deposition in the unsaturated zone at Yucca Mountain, and compared the model results to measured abundances in core from a surface-based borehole. Marshall et al. (2003) used the calcite distribution in the Topopah Spring Tuff to estimate past seepage into lithophysal cavities as an analog for seepage into the potentia...
متن کاملModeling acid-gas generation from boiling chloride brines
BACKGROUND This study investigates the generation of HCl and other acid gases from boiling calcium chloride dominated waters at atmospheric pressure, primarily using numerical modeling. The main focus of this investigation relates to the long-term geologic disposal of nuclear waste at Yucca Mountain, Nevada, where pore waters around waste-emplacement tunnels are expected to undergo boiling and ...
متن کاملYUCCA MOUNTAIN: Earth-Science Issues at a Geologic Repository for High-Level Nuclear Waste
■ Abstract The nation has over 40,000 metric tonnes (MT) of nuclear waste destined for disposal in a geologic repository at Yucca Mountain. In this review, we highlight some of the important geoscience issues associated with the project and place them in the context of the process by which a final decision on Yucca Mountain will be made. The issues include understanding how water could infiltra...
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تاریخ انتشار 1998