Ion Migration in Ocean Sediments: Subseafloor Radioactive Waste Disposal
In this study of seabed disposal, analytical ion transport models were developed and used to elucidate ion migration through ocean sediments and to study the escape of ions from the ocean floor into the water column. An unsteady state isothermal diffusion model was developed for the region far from the canister to examine the effects of ion diffusion, adsorption, radioactive decay, sediment thickness and canister position. Analytical solutions were derived to represent the transient concentration profiles within the sediment, ion flux and the ion discharge rate to the water column for two types of initial conditions: instantaneous dissolution of the canister and constant canister leakage. Generalized graphs showing ion migration and behavior are presented.
KeywordsOcean Floor Ocean Sediment Nuclear Waste Disposal Sandia Laboratory Radioactive Species
Unable to display preview. Download preview PDF.
- 1.W. P. Bishop, First-Year Report, SAND74–0410 (1975). D. M. Talbert, Seabed Disposal Program Annual Report, SAND76–0256, (1976); Seabed Disposal Program Annual Report, SAND77–1270, (1977); Seabed Disposal Program Annual Report, SAND78–1359, ( 1979 ); All four reports published by Sandia Laboratories, Albuquerque, NM (1979).Google Scholar
- 2.D. R. Anderson, Nuclear Waste Disposal Subseabed Geologic Formations: the Seabed Disposal Program, SAND78–2211, Sandia Laboratories, NM (1979).Google Scholar
- 3.H. E. Nuttall, Preliminary Seabed Disposal Modeling Studies, SAND78–1651, Sandia Laboratories, Albuquerque, NM (1979).Google Scholar