Microbially-influenced changes in repositories of nuclear waste: biofouling and biocorrosion of metal canisters

核废料储存库中受微生物影响的变化：金属罐的生物污垢和生物腐蚀

• 批准号: 2748843
• 金额: --
• 依托单位: Swansea University
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2022
• 资助国家: 英国
• 起止时间: 2022 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2748843
• 关键词: Microbially; influenced; changes; repositories; nuclear

With the current oil and gas energy crisis, nuclear energy has resurfaced as one of the most efficient and cleanest alternatives. However, one of the major concerns of this technology is nuclear waste. Deep geological repositories are multi-barrier systems to deposit radioactive waste, by encapsulating the waste in metal containers (e.g. copper) surrounded by compacted bentonite and emplacing them at 500-1000 m depth. This project will study the impact of microbial processes on the corrosion of these metal containers. The project aims to study the effects of biofilms and biocorrosion on the metal surfaces using a combination of potentiometric, spectroscopic (ATR-FTIR, micro-FTIR, ToF-SIMS, depth-profile XPS), microscopic (TEM, SEM-EDX) and microbiological techniques.

随着当前的石油和天然气能源危机，核能作为最高效、最清洁的替代能源之一重新浮出水面。然而，这项技术的一个主要问题是核废料。深层地质储存库是存放放射性废物的多屏障系统，通过将废物封装在由压实膨润土包围的金属容器（例如铜）中，并将其放置在500-1000米深的地方。该项目将研究微生物过程对这些金属容器腐蚀的影响。该项目旨在研究生物膜和生物腐蚀对金属表面的影响，结合使用电位法、光谱法（ATR-FTIR、微ftir、ToF-SIMS、深度剖面XPS）、显微法（TEM、SEM-EDX）和微生物学技术。