Adsorption & Diffusion
Animation showing the temperature dependence of gas particle adsorption onto rock/soil walls within a fracture or pore.
Copyright © John P. Ortiz 2022.
Adsorption is the adhesion of atoms, ions or molecules from a gas, liquid or dissolved solid to a surface. As a result, adsorption is a process that retards contaminant transport through porous media, so it is important for us to understand for a variety of applications.
Highlighted Works
Articles
Neil, C. W., Boukhalfa, H., Xu, H., Ware, S. D., Ortiz, J., Avendaño, S., Harp, D. R., Broome, S., Hjelm, R. P., Brug, W. P., & Stauffer, P. H. (2022). Gas diffusion through variably-water-saturated zeolitic tuff: Implications for transport following a subsurface nuclear event. Journal of Environmental Radioactivity, 250, 106905.
Harp, D. R., Ortiz, J. P., Pandey, S., Karra, S., Anderson, D., Bradley, C., Viswanathan, H., & Stauffer, P. H. (2018). Immobile pore-water storage enhancement and retardation of gas transport in fractured rock. Transport in Porous Media, 124(2), 369-394.
Posters
Ortiz, J. P. (2019). Noble gas diffusion through variably-saturated rock: implications for verification of subsurface nuclear events. LANL Student Symposium.