Objective
HUMIC AND FULVIC ACIDS ARE IMPORTANT TRANSFER VECTORS OF RADIONUCLIDES IN THE GEOSPHERE, PARTICULARLY IN THE POROUS SEDIMENTARY SYSTEMS. SUCH SYSTEMS ARE OBLIGED WAYS BETWEEN THE GEOLOGICAL FORMATION OF THE NUCLEAR WASTE STORAGE SITES (SALT OR CLAY OPTIONS) AND THE BIOSPHER. IN THE CASE OF THE GRANITIC FORMATION, WEATHERING MATERIALS OF FRACTURES OR MINED CAVITIES HAVE A SIMILAR BEHAVIOUR. INDEED THESE ACIDS, ALWAYS PRESENT IN THE UNDERGROUND WATERS, HAVE COMPLEXATION PROPERTIES WHICH CAN INDUCE HIGH MOBILITY SPECIES IN THE WATER-TABLE.
THESE ARE THE GOALS OF THE PROJECT:
- MEASUREMENTS OF HUMIC ACIDS MOLECULAR WEIGHT BY MEANS OF ULTRACENTRIFUGATION AND LIQUID CHROMATOGRAPHY (INTERCALIBRATION EXERCISE)
- FRACTIONATION AND ISOLATION OF HUMIC AND FULVIC SPECIES
- MEASUREMENTS OF THE COMPETITION BETWEEN THE DIFFERENT SPECIES IN THE SORPTION OF 156 EU, 99 TC, 241 AM, 238 PU BY MEANS OF A SPECIALLY-BUILT DIALYSIS DISPLAY.
1. CONSTRUCTION OF A POLYDIALYSIS REACTOR, DERIVED FROM AN EXISTING MODEL. THE CHOSEN MATERIAL IS P.T.F.E.
2. THE TESTED SAMPLES ORIGINATE IN BOOM (MOL, BELGIUM), GORLEBEN (F.R.G.) AND FANAY-AUGERES (FRANCE).
3. ESTIMATION OF THE COMPETITION AT EQUILIBRIUM CONDITIONS IS OBTAINED BY SORPTION CINETICS.
4. TAKING PART IN THE INTERCALIBRATION EXERCISE ON THE HUMIC AND FULVIC ACIDS.
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 nuclear chemistry radiation chemistry
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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 (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
44035 NANTES
France
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.