Objective
The aim of the research programme is to examine, quantify, and model the role of humic substances in radionuclide migration. The programme will focus on proposed repositories within the European Community member states and site-specific materials will be used. Experimental results with natural substances will be directly applied to geochemical complexation and transport models. To achieve these goals, the programme is divided into six tasks: 1. Collection and characterisation of site specific samples
2. Complexation of actinides and major cations with humic and fulvic acids 3. Effect of humic substances on transport
4. Model development
5. Model testing
6. Role of humic
substances for performance assessment In the first three tasks, environmental samples will be collected, characterised, and used in experiments. The final three tasks involve model development, validation and application. The tasks will run concurrently and the relationship between modellers and experimentalists will be interactive to ensure that the necessary data is acquired and appropriate models are developed and applied. In Task 1, humic substances, groundwaters, sediments and rocks will be collected and analysed. Purified humic substances and geological materials will be distributed to participating laboratories. Task 2 examines the complexation reactions of actinides and major cations with humic and fulvic acids. Emphasis will be placed on examining conditions similar to natural systems. Special prominence will be given to the non-trivalent actinide elements, since results on the complexation of these elements with humic substances are generally lacking in the literature. Task 3 examines the interaction amongst metal ions, humic substances, and geological materials. The solid phases to be examined are the host geological materials and individual components of these materials. The objective of Task 4 is to develop predictive models for metal ion complexation with humic substances and humic substance-mediated metal-ion transport through geological materials. The models developed in Task 4 will be used to blind predict the results from well-defined laboratory experiments. In the final task, Task 6, the developed model will be used to assess under which conditions are humic substances involved in radionuclide complexation and transport. The model will be applied to a number of different geological systems, such as salt domes, granitic, or clay, which are proposed as potential long term radioactive waste disposal site by European Community member states. This will provide a scientifically based analysis on the importance and role of humic substances in the safety assessment of disposal sites.
Fields of science (EuroSciVoc)
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Programme(s)
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Topic(s)
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.
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.
Call for proposal
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Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
Funding Scheme
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.
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
76344 EGGENSTEIN-LEOPOLDSHAFEN
Germany
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.