| About this Abstract |
| Meeting |
Materials Science & Technology 2019
|
| Symposium
|
Materials Issues in Nuclear Waste Management
|
| Presentation Title |
Dechlorination Methods and Ceramic Waste Forms for the Immobilization of Electrorefiner Salt |
| Author(s) |
Levi Gardner |
| On-Site Speaker (Planned) |
Levi Gardner |
| Abstract Scope |
Glass-bonded sodalite is currently the most promising ceramic waste form for the disposal of electrorefiner waste salt from pyroprocessing. Despite its excellent chemical durability, this waste form’s effectiveness is hindered by limited fission product loading. This report provides an overview of alternative processes with higher fission product loadings in final waste forms. Two main processing paths are discussed. The first path involves the dechlorination of waste salt via ion exchange with H-Y zeolite and consolidation through sintering. The second path involves the use of boric acid and silicic acid as dechlorinating agents and consolidation through melting or sintering. Physical properties including chemical durability and final storage volume are compared among these processes. |