Hydrothermal interaction of solid wafers of Topopah Spring Tuff with J-13 water at 90 and 150{degree}C using Dickson-type, gold-bag rocking autoclaves: Long-term experiments
The Nevada Nuclear Waste Storage Investigations Project conducted long-term experiments to study the hydrothermal interaction of rock and water representative of a potential high-level waste repository at Yucca Mountain, Nevada. The results of these experiments complement those obtained previously in short-term experiments at similar and higher temperatures. These long-term experiments also help in assessing the effects of kinetic inhibition in the precipitation of secondary minerals at the lower temperatures and allow a more complete determination of the approach of the fluid toward a steady-state composition. Considered collectively, the results of both short- and long-term experiments provide information useful in defining the near-field repository environment during and shortly after the thermal period caused by the emplacement of nuclear waste. These long-term experiments were conducted using solid wafers cut from drillcore samples of Topopah Spring tuff. A natural ground water was used as the reacting fluid. Analytical techniques for determining the composition of fluids and solids were similar to those used in previous short-term experiments. All experiments were run in Dickson-type, gold-bag rocking autoclaves that were periodically sampled under in situ conditions. Two long-term (304-day) experiments were run at temperatures of 90 and 150{degree}C and 50-bar pressure. 21 refs., 8 figs., 5 tabs.
- Research Organization:
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 60462
- Report Number(s):
- UCRL-53722; ON: DE88005709
- Resource Relation:
- Other Information: PBD: May 1987
- Country of Publication:
- United States
- Language:
- English
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Hydrothermal interaction of crushed Topopah Spring tuff and J-13 water at 90, 150, and 250{sup 0}C using Dickson-type, gold-bag rocking autoclaves
Hydrothermal interaction of solid wafers of topopah spring tuff with ground water and distilled water at 90/sup 0/C, 150/sup 0/C and 250/sup 0/C using dickson-type, gold-bag rocking autoclaves
Related Subjects
GROUND WATER
ROCK-FLUID INTERACTIONS
TUFF
HYDROTHERMAL ALTERATION
AUTOCLAVES
BENCH-SCALE EXPERIMENTS
DRILL CORES
EXPERIMENTAL DATA
TEMPERATURE RANGE 0400-1000 K
HIGH-LEVEL RADIOACTIVE WASTES
TEMPERATURE RANGE 0273-0400 K
RADIOACTIVE WASTE DISPOSAL
TEMPERATURE EFFECTS
YUCCA MOUNTAIN
Yucca Mountain Project