Objective
The present work aims at further elucidation of some mechanisms which govern the elution, by water, of some important ions from solids simulating solidified low or medium level radioactive wastes.
The distribution of Sr ion in the cement matrix after a long period of leaching as well as the physicochemical state of water within the pores in this matrix will be investigated.
In the work concerning polymers the experimental study of the sorption and diffusion behaviour of a model polymer-NaCl-H2O system will permit the more detailed application and testing of the theoretical approach describing the elution of salts of both high and low solubility embedded in hydrophobic matrices, taking into account the concurrent uptake of water.
Work programme:
Experiments on distribution of Sr in different cement specimens containing inactive Sr in the form of SrSO4 and Sr-90 in the form of Sr(NO3)2.
Thermogravimetric and differential scanning calorimetry measurements and porosimetry measurements to assess the physicochemical state of water.
Sorption and diffusion experiments with NaCl in polymer films and parallel measurements of the rate of water sorption.
Equilibrium water uptake by polymer films at different relative humidities and salt content.
Study of ion transport using Na-22 and Cl-36 tracers.
Modelling and interpretation of results.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
- engineering and technology other engineering and technologies nuclear engineering nuclear waste management
- natural sciences chemical sciences polymer sciences
- natural sciences chemical sciences analytical chemistry calorimetry
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Programme(s)
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Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Topic(s)
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Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
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Funding Scheme
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Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Coordinator
15310 ATHENS
Greece
The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.