A5065367363- Soil and Unsaturated Flow
- Groundwater flow and contamination studies
- Research in Social Sciences
- Nursing Roles and Practices
- Graphite, nuclear technology, radiation studies
- CO2 Sequestration and Geologic Interactions
- Landfill Environmental Impact Studies
- Nuclear reactor physics and engineering
- Electrochemical Analysis and Applications
- Nuclear and radioactivity studies
- Chemical Synthesis and Characterization
- NMR spectroscopy and applications
- Chemical Analysis and Environmental Impact
Nuclear Waste Management Organization
2018
VTT Technical Research Centre of Finland
2011-2016
Finnish spent nuclear fuel final disposal is planned to be based on the Kärnbränslesäkerhet 3-Vertical concept, which was originally for fractured crystalline bedrock. Within this role of bentonite buffer considered central. The aim study model evolution repository during thermal phase (heat-generating period fuel) when initially only partially saturated. There an essential need determine how temperature influences saturation and both these factors affect chemistry bentonite.In Long-Term...
Abstract Many safety functions required of the compacted bentonite buffer in KBS-3 concept rely on processes influenced by composition pore water. Important safety-relevant are related to buffer, e.g. swelling, precipitation and dissolution reactions, transport water, colloids ions. One methods used analysing water is ‘squeezing technique’. Various possible artefacts which can occur during squeezing, such as mixing different pore-water types, accessory minerals cation exchange, need special...
Abstract Disposal of Finnish spent nuclear fuel is planned to be based on the KBS-3 repository concept. The role bentonite buffer in this concept essential, and thus behaviour has known. experiments paper concentrated providing information about effects carbon dioxide CO 2 (g) partial pressure compacted sodium bentonite, giving an insight into buffering capacity. experimental setup consisted a hermetic box which had -adjusted atmosphere, was contact with atmosphere through water reservoirs....
The bentonite barrier is an essential part of a safe spent fuel repository in granitic bedrock. One the most important safety functions buffer to limit groundwater flow so that all mass transport takes place by diffusion. In this work new mathematical model was developed define ions inside bentonite, where there are bound interlayer water and free extra layer sorption capability. This tested specified geometry calculated two numerical platforms—Numerrin COMSOL Multiphysics—and compared...