Leaching studies using PNL 76-68 glass beads and UO/sub 2/ rods with Umtanum basalt and Nugget sandstone

Technical Report · Wed Feb 01 04:00:00 EST 1984

DOI:https://doi.org/10.2172/5288115· OSTI ID:5288115

Bazan, F; Rego, J; Failor, R; Coles, D

We have performed a 440-day leaching experiment, Bead Leach II, using PNL 76-68 glass beads and simulated uranium fuel rods in the presence of repository host rocks. The experiment was conducted in a single pass continuous-flow apparatus consisting of 72 channels. The experimental conditions were: 25/sup 0/C and 75/sup 0/C, flow rates of 1, 10, and 300 m1/d, and leachant solutions consisting of simulated basalt groundwater, brine, and sodium bicarbonate solution. The two host rocks studied were Umtanum basalt and Nugget sandstone. The Bead Leach II experiment began in late 1980 and the leaching phase was concluded in December, 1981. Analysis of the leachates and of the two rock types was carried out subsequently and the results are presented in two reports. Part I was published in March, 1983, and it included results of the leaching of PNL 76-68 glass beads with the basalt groundwater. Part II includes results of the leaching of PNL 76-68 glass beads with brine and bicarbonate solution and the leaching of UO/sub 2/ pellets with basalt groundwater, brine, and bicarbonate solution. Results are in the form of leach rates, cumulative fractions leached, and adsorption profiles on basalt and sandstone. The radionuclides studied were Pu and Np in the case of the glass beads and uranium in the case of the simulated uranium fuel rods. 5 references, 21 figures, 44 tables.

• Research Organization: Lawrence Livermore National Lab., CA (USA)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 5288115
• Report Number(s): UCID-20013; ON: DE84006994
• Country of Publication: United States
• Language: English

Related Subjects

052002* -- Nuclear Fuels-- Waste Disposal & Storage
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
ACID CARBONATES
ACTINIDE COMPOUNDS
ACTINIDES
ADSORPTION
ALKALI METAL COMPOUNDS
BASALT
BOROSILICATE GLASS
BRINES
CHALCOGENIDES
CHLORIDES
CHLORINE COMPOUNDS
DATA
DISPERSIONS
DISSOLUTION
ELEMENTS
EXPERIMENTAL DATA
FUEL ELEMENTS
FUEL RODS
GLASS
GROUND WATER
HALIDES
HALOGEN COMPOUNDS
HYDROGEN COMPOUNDS
IGNEOUS ROCKS
INFORMATION
LEACHATES
LEACHING
METALS
MIXTURES
NEPTUNIUM
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PLUTONIUM
REACTOR COMPONENTS
ROCKS
SANDSTONES
SEDIMENTARY ROCKS
SEPARATION PROCESSES
SODIUM CHLORIDES
SODIUM COMPOUNDS
SOLUTIONS
SORPTION
SORPTIVE PROPERTIES
SURFACE PROPERTIES
TRANSURANIUM ELEMENTS
URANIUM
URANIUM COMPOUNDS
URANIUM DIOXIDE
URANIUM OXIDES
VOLCANIC ROCKS
WASTE-ROCK INTERACTIONS
WATER