Potential influence of microorganisms on the corrosion of carbon steel in the French high- and intermediate-level long-lived radioactive waste disposal context
| العنوان: | Potential influence of microorganisms on the corrosion of carbon steel in the French high- and intermediate-level long-lived radioactive waste disposal context |
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| المؤلفون: | Diler, Erwan, Leblanc, Vanessa, Gueuné, Herve, Larché, Nicolas, Deydier, Valerie, Linard, Yannick, Crusset, Didier, Thierry, Dominique |
| المصدر: | Materials and corrosion - Werkstoffe und Korrosion. 72(1-2):218-234 |
| مصطلحات موضوعية: | carbon steel, CIGEO, electrical resistance sensor, microbially influenced corrosion, radioactive waste, Corrosion rate, Geological repositories, Infill drilling, Microbial corrosion, Microorganisms, Microwave integrated circuits, Radioactive waste disposal, Radioactive wastes, Radioactivity, Research laboratories, Underground corrosion, Deep geological disposal, Electrical resistances, High level radioactive waste disposal, Long-lived radioactive wastes, Microbiological analysis, Molecular characterization, Real time corrosion monitoring, Underground research laboratories, Steel corrosion |
| الوصف: | In the context of the high-level radioactive waste disposal CIGEO, the corrosion rate due to microbially influenced corrosion (MIC) has to be evaluated. In France, it is envisaged to dispose of high- and intermediate-level long-lived radioactive waste at a depth of 500 m in a deep geological disposal, drilled in the Callovo-Oxfordian claystone (Cox) formation. To do so, a carbon steel casing will be inserted inside disposal cells, which are horizontal tunnels drilled in the Cox. A specific cement grout will be injected between the carbon steel casing and the claystone. A study was conducted to evaluate the possibility of MIC on carbon steel in the foreseeable high radioactive waste disposal. The corrosiveness of various environments was investigated at 50°C and 80°C with or without microorganisms enriched from samples of Andra's underground research laboratory. The monitoring of corrosion during the experiments was ensured using gravimetric method and real-time corrosion monitoring using sensors based on the measurements of the electrical resistance. The corrosion data were completed with microbiological analyses including cultural and molecular characterizations. |
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| URL الوصول: | https://urn.kb.se/resolve?urn=urn:nbn:se:ri:diva-46360 https://doi.org/10.1002/maco.202011779 |
| قاعدة البيانات: | SwePub |
| تدمد: | 09475117 15214176 |
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| DOI: | 10.1002/maco.202011779 |