Long-Term High-Level Defense Waste technology progress report, January-March 1982

Technical Report · Sat May 01 00:00:00 EDT 1982

OSTI ID:6682765

This report summarizes the work accomplished on the Long-Term High-Level Defense Waste end function during the second quarter of Fiscal Year 1982. Two major technology tasks are supported within Rockwell Hanford Operations (Rockwell): residual liquid solidification and in situ drying. In addition, Rockwell is providing guidance for pass through funded waste tank and cesium capsule corrosion tests being performed at Battelle Pacific Northwest Laboratory (PNL) and concrete grout bulk waste immobilization studies at Oak Ridge National Laboratory (ORNL). In the residual liquid solidification effort, the primary focus of the alternatives study this year is on the wiped film evaporator approach to drying salt well pumped liquids and returning the dried material to single-shell tanks. Both systems analysis and experimental work are proceeding to evaluate this approach. The study of in situ drying of in-tank wastes is focusing on microwave drying of wet salt cake. Experimental work has been successfully conducted on a 1/12 scale tank containing wet synthetic salt cake. Related systems analysis of a full-scale system has been initiated. A smaller support task also being funded at Rockwell under this program is to provide liaison to PNL and ORNL on waste immobilization studies. For the PNL vitrification work, Rockwell has provided Hanford defense waste feed stream formulations, flowsheets and a revised vitrification system study. For the ORNL concrete grout work, Rockwell has provided simulated Hanford waste and grout performance objectives. The waste tank and cesium capsule corrosion testing efforts at PNL have focused on test planning and testing preparation. Waste tank corrosion tests have begun, and capsule corrosion electrical mock-up tests have been conducted.

• Research Organization: Rockwell International Corp., Richland, WA (USA). Energy Systems Group
• DOE Contract Number: AC06-77RL01030
• OSTI ID: 6682765
• Report Number(s): RHO-WM-SR-82-1-2Q-P; ON: DE82020954; TRN: 82-025629
• Country of Publication: United States
• Language: English

Related Subjects

12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
RADIOACTIVE WASTE PROCESSING
DRYING
HIGH-LEVEL RADIOACTIVE WASTES
RESEARCH PROGRAMS
SOLIDIFICATION
CORROSION
LIQUID WASTES
TANKS
CHEMICAL REACTIONS
CONTAINERS
MANAGEMENT
MATERIALS
PHASE TRANSFORMATIONS
PROCESSING
RADIOACTIVE MATERIALS
RADIOACTIVE WASTES
WASTE MANAGEMENT
WASTE PROCESSING
WASTES
052001* - Nuclear Fuels- Waste Processing