Release and speciation of14C during the corrosion of activated steel in deep geological repositories for the disposal of radioactive waste
| Autor: | J. Mibus, E. Wieland, S W Swanton, N. Diomidis |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
010506 paleontology
Archeology Radionuclide Work package Waste management Radioactive waste Context (language use) 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Corrosion Conservative treatment Work (electrical) Genetic algorithm General Earth and Planetary Sciences Environmental science 0210 nano-technology 0105 earth and related environmental sciences |
| Zdroj: | Radiocarbon. 60:1657-1670 |
| ISSN: | 1945-5755 0033-8222 |
| Popis: | Carbon-14 (radiocarbon,14C) is an important radionuclide in the inventory of radioactive waste in many disposal programs due to its significant dose contributions in safety assessments for geological repositories. Activated steels from nuclear reactors are one of the major sources of14C. Knowledge of14C release from steel wastes and its chemical form (speciation) is limited giving rise to uncertainty regarding the fate of14C and a conservative treatment in assessment calculations. In this work, we summarize and make a synthesis of selected results from Work Package 2 of the EU CAST project aiming to improve understanding of14C release related to steel corrosion under repository-relevant conditions. The outcome of the experiments is discussed in the context of the long-term evolution of a repository and its potential consequences for safety assessment. |
| Databáze: | OpenAIRE |
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