A new approach to the selection of materials for engineered barriers and appropriate host rocks for high level waste disposal
Book
·
OSTI ID:377957
- Russian Academy of Sciences, Moscow (Russian Federation). Inst. of Geology of Ore Deposits
Sorptive properties of weathered dunites, gabbro-diabases and basic volcanic rocks for Sr and Cs were studied. The results show that the sorptive capacities of these rocks are equivalent to or, in some cases, superior to the industrial sorptive materials. Results of a uranium distribution study by fission-track radiography suggest that material from weathered basic rocks is characterized by high sorptive properties for uranium also. One can assume that other radionuclides of the transuranic group will be intensely sorbed by the residuum of weathered basic rocks. Low-temperature hydrothermal transformation leads to sealing fissures of the basic rocks with highly sorptive minerals, for example, smectite, chlorite, serpentine, in talc, zeolite, hydroxides of Fe, Ti, Mn. The process results in contemporaneous decreasing hydraulic conductivity and increasing sorptive capacity of the rocks. HLW disposal at the radiochemical plant Mayak is expected to be produced in deep wells situated in basaltic rocks. The safety of disposal is based on high sorptive properties of the crust of weathering and protective capacities of volcanic rocks. This method is not expensive and may allow the disposal of HLW in the near future.
- OSTI ID:
- 377957
- Report Number(s):
- CONF-941075--; ISBN 1-55899-253-7
- Country of Publication:
- United States
- Language:
- English
Similar Records
The petrographic criteria of selection of geological environments for building high-level waste (HLW) repository
Middle Jurassic U-Pb crystallization age for Siniktanneyak Mountain ophiolite, Brooks Range, Alaska
Modelling of contaminated underground waters and host volcanic rocks interaction in the vicinity of Mayak plant, Ural, Russia
Book
·
Thu Dec 30 23:00:00 EST 1993
·
OSTI ID:100860
Middle Jurassic U-Pb crystallization age for Siniktanneyak Mountain ophiolite, Brooks Range, Alaska
Conference
·
Wed Mar 31 23:00:00 EST 1993
· Geological Society of America, Abstracts with Programs; (United States)
·
OSTI ID:5024136
Modelling of contaminated underground waters and host volcanic rocks interaction in the vicinity of Mayak plant, Ural, Russia
Book
·
Sat Dec 30 23:00:00 EST 1995
·
OSTI ID:220982
Related Subjects
05 NUCLEAR FUELS
ADSORPTION
CESIUM
CONTAINMENT SYSTEMS
EXPERIMENTAL DATA
GABBROS
HIGH-LEVEL RADIOACTIVE WASTES
HYDROTHERMAL ALTERATION
MATRIX MATERIALS
MAYAK PLANT
RADIOACTIVE WASTE DISPOSAL
RADIOACTIVE WASTE FACILITIES
ROCK-FLUID INTERACTIONS
SORPTIVE PROPERTIES
STRONTIUM
UNDERGROUND DISPOSAL
VOLCANIC ROCKS
WEATHERING
ADSORPTION
CESIUM
CONTAINMENT SYSTEMS
EXPERIMENTAL DATA
GABBROS
HIGH-LEVEL RADIOACTIVE WASTES
HYDROTHERMAL ALTERATION
MATRIX MATERIALS
MAYAK PLANT
RADIOACTIVE WASTE DISPOSAL
RADIOACTIVE WASTE FACILITIES
ROCK-FLUID INTERACTIONS
SORPTIVE PROPERTIES
STRONTIUM
UNDERGROUND DISPOSAL
VOLCANIC ROCKS
WEATHERING