Special Waste Form Lysimeters-Arid Program. Summary

Conference · Fri Aug 01 04:00:00 EDT 1986

OSTI ID:5061152

Skaggs, R L; Walter, M B

The purpose of the Special Waste Form Lysimeters - Arid Program is to determine the performance of solidified commercial low-level waste forms using a field-scale lysimeter facility constructed for measuring the release and migration of radionuclides from the waste forms. The performance of these waste forms, as measured by radionuclide concentrations in lysimeter effluent, will be compared to that predicted by laboratory characterization of the waste forms. Waste forms being tested include nuclear power reactor waste streams that have been solidified in cement, Dow polymer, and bitumen. To conduct the field leaching experiments a lysimeter facility was built to measure leachate under actual environmental conditions. Field-scale samples of waste were buried in lysimeters equipped to measure water balance components, effluent radionuclide concentrations, and to a limited extent, radionuclide concentrations in lysimeter soil samples. The waste forms are being characterized by standard laboratory leach tests to obtain estimates of radionuclide release. These estimates will be compared to leach rates observed in the field. Adsorption studies are being conducted to determine the amount of contaminant available for transport after the release. Theoretical solubility calculations will also be performed to investigate whether common solid phases could be controlling radionuclide release.

• Research Organization: Pacific Northwest Lab., Richland, WA (USA)
• DOE Contract Number: AC06-76RL01830
• OSTI ID: 5061152
• Report Number(s): PNL-SA-14286; CONF-860990-5; ON: DE87000447
• 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
36 MATERIALS SCIENCE
360604* -- Materials-- Corrosion
Erosion
& Degradation
520300 -- Environment
Aquatic-- Radioactive Materials Monitoring & Transport-- (1989)
54 ENVIRONMENTAL SCIENCES
ALKYLATED AROMATICS
AROMATICS
BITUMENS
BUILDING MATERIALS
CEMENTS
DATA
DISSOLUTION
ENVIRONMENTAL TRANSPORT
EXPERIMENTAL DATA
GROUND WATER
HYDROCARBONS
HYDROGEN COMPOUNDS
INFORMATION
LEACHING
LOW-LEVEL RADIOACTIVE WASTES
LYSIMETERS
MASS TRANSFER
MATERIALS
MEASURING INSTRUMENTS
MONOMERS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC POLYMERS
OTHER ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PERFORMANCE
POLYMERS
RADIOACTIVE MATERIALS
RADIOACTIVE WASTES
RADIONUCLIDE MIGRATION
SEPARATION PROCESSES
SOILS
STYRENE
TAR
VINYL MONOMERS
WASTE FORMS
WASTES
WATER