Biodegradation of cobalt-citrate complexes: implications for cobalt mobility in groundwater

摘要

The bacterial consumption of chelating agents are present in low-level radiactive and mixed wastes may help to immobilize chelated metals and radionuclides accidentally released to groundwater. We investigated the influence of the bacterial consumption of citrate complexed with cobalt on cobalt transport through packed sand columns. Experiments were conducted using each of three types of column packing material using minerals common to subsurface environments: clean quartz sand; ferric oxide(Fe(OH)_3)-coated sand; hausmannite(Mn_3O_4)-coated sand.