Deep geological disposal aims to contain and isolate radioactive waste from the biosphere. Repository systems are made of multiple barriers working together, typically comprising natural barrier provided by repository host rock its surroundings an engineered system. Due their excellent properties for confinement contaminants, including low permeability, high sorption capacity, swelling/self-sea...

Bacterial diversity in the hyperalkaline Allas Springs (Cyprus), a natural analogue for cementitious radioactive waste repository Athanasios Rizoulis, Antoni E. Milodowski, Katherine Morris & Jonathan R. Lloyd a Research Centre for Radwaste and Decommissioning & Williamson Research Centre for Molecular Environmental Science, School of Earth, Atmospheric and Environmental Sciences, The Universit...

Within ongoing work, Canada’s Nuclear Waste Management Organization (NWMO) is demonstrating that copper coatings can be developed as viable corrosion barriers for used fuel nuclear containers, emplaced in a deep geological repository. As a means of assessing container design and feasibility, coated samples, manufactured via cold spray and electrodeposition have been produced and characterised. ...

Safety assessment of geological nuclear waste repositories is essential for the permanent disposal spent fuels and high-level radioactive waste. The long-term integrity host rock as well engineered barrier system (e.g., bentonite buffer) surrounding canisters particular importance decay heat from canisters, which will last over thousands years, significantly disturbs thermo-hydromechanical (THM...

Data from the U.S. Geological Survey (USGS) collocated-sampler program for the National Atmospheric Deposition Program/National Trends Network (NADP/NTN) are used to estimate the overall error of NADP/NTN measurements. Absolute errors are estimated by comparison of paired measurements from collocated instruments. Spatial and temporal differences in absolute error were identified and are consist...