Microbial Issues Pertaining to the Canadian Concept for the Disposal of NuclearFuel Waste (Questions a Examiner Quant aux Microbes lors du Developpement du Concept Canadien de Stockage Permanent des Dechets de Combustible Nucleaire)

摘要

This report formulates a number of views and positions on microbiological factorsthat could influence the performance of a disposal vault in plutonic rock. Microbiological factors discussed include the presence and survival of microbes, biofilms, corrosion, biodegradation (of emplaced materials), gas production, geochemical changes, radionuclide migration, colloid formation, mutation, pathogens and methylation. Not all issues can be fully resolved with the current state of knowledge. Studies being performed to underscore and strengthen current knowledge are briefly discussed.