Radium and Thorium Sorption by Monosodium Titanate (MST) and Modified MST (mMST)

Abstract

To confirm performance assessment inputs for the Saltstone Facility at the Savannah River Site (SRS), a series of experiments were performed to examine the removal of Ra and Th by monosodium titanate (MST) and modified MST (mMST). The solubility of Th in the simulated high-level waste solutions was found to be extremely low; therefore, its removal by MST could not be measured. Radium was rapidly removed from the high-level waste simulant by both MST and mMST.

Keywords:

• MST
• mMST
• radium
• thorium
• high-level waste

Additional information

Funding

The authors would like to acknowledge Savannah River Remediation (SRR) for funding of this work.