Hydrothermal studies of simulated defense waste glass plus basalt

Conference · Thu Nov 01 04:00:00 EST 1984

OSTI ID:6452569

Allen, C C; Lane, D L; Johnston, R G; Marcy, A D; Adee, R R

The Basalt Waste Isolation Project is conducted for the US Department of Energy by Rockwell Hanford Operations. The Basalt Waste Isolation Project has undertaken an experimental program to test the behavior of defense waste glass under conditions relevant to a repository in basalt. Three autoclave experiments utilizing a nonradioactive simulated waste glass (Savannah River Laboratory Type 131/TDS-3A) have been completed. Monolithic discs and crushed glass particles were reacted with crushed basalt and synthetic basalt ground water for approx.1 yr at temperatures of 90/sup 0/C to 150/sup 0/C. The crushed glass proved considerable more reactive than the monoliths at similar temperatures. Raising the temperature from 90/sup 0/C to 150/sup 0/C produced a striking increase in the extent of glass alteration. At 150/sup 0/C, essentially all of the boron and most of the sodium in the glass particles were released. The major reaction products in all three experiments were smectite clay and zeolites. The two tests utilizing crushed glass also yielded analcime. Nickel, cesium, and strontium, important elements in defense waste, were released from the glass in small quantities. The nickel was incorporated into the clay, while the cesium was incorporated into the analcime. 19 refs., 2 figs., 2 tabs.

• Research Organization: Rockwell International Corp., Richland, WA (USA). Rockwell Hanford Operations; Pacific Northwest Labs., Richland, WA (USA)
• DOE Contract Number: AC06-77RL01030
• OSTI ID: 6452569
• Report Number(s): RHO-BW-SA-381-P; CONF-841157-101; ON: DE86004520
• Country of Publication: United States
• Language: English

Related Subjects

052002* -- Nuclear Fuels-- Waste Disposal & Storage
053000 -- Nuclear Fuels-- Environmental Aspects
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
ALKALI METALS
AUTOCLAVES
BASALT
BENCH-SCALE EXPERIMENTS
BORON
BOROSILICATE GLASS
DATA
DISSOLUTION
ELEMENTS
ENVIRONMENTAL TRANSPORT
EXPERIMENTAL DATA
GLASS
GROUND WATER
HIGH TEMPERATURE
HYDROGEN COMPOUNDS
HYDROTHERMAL ALTERATION
IGNEOUS ROCKS
INFORMATION
LEACHING
MANAGEMENT
MASS TRANSFER
MEDIUM PRESSURE
METALS
NUMERICAL DATA
OXYGEN COMPOUNDS
RADIOACTIVE WASTE DISPOSAL
RADIONUCLIDE MIGRATION
ROCK-FLUID INTERACTIONS
ROCKS
SEMIMETALS
SEPARATION PROCESSES
SODIUM
TEMPERATURE DEPENDENCE
TIME DEPENDENCE
VOLCANIC ROCKS
WASTE DISPOSAL
WASTE FORMS
WASTE MANAGEMENT
WASTE-ROCK INTERACTIONS
WATER