What is the current method for disposing of depleted uranium?
Depleted uranium is primarily stored at the enrichment facilities in the form of uranium hexafluoride (UF6), a chemical form required for enrichment but not optimal for long-term storage. This depleted uranium hexafluoride (DUF6) is typically stored in 14-ton cylinders near the enrichment facilities. Processed depleted uranium may be sold for commercial uses such as counterweights, military penetrators, shielding, etc. Alternatively, material may be transferred to the U.S. Department of Energy (DOE) for a fee. It may also be disposed of at commercial disposal sites if the material meets the site’s disposal criteria. Depleted uranium can be disposed of as low-level radioactive waste if it is converted to chemically stable uranium oxide compounds, such as triuranium octoxide (U3O8) or uranium dioxide (UO2), which are similar to the chemical form of natural uranium. DOE currently has more than 700,000 metric tons (771,000 U.S. tons) of depleted UF6 in storage . Under the U.S. Enrichment C