Laboratory development of a pot calcination process for converting liquid wastes to solids
Simulated Darex, Purex, Thorex, and TBP-25 wastes were batch-evaporated and calcined to solids. The weight of residue was decreased to approx. 8% of the original waste for Darex, to approx. 4% for Purex, to approx. 2% for Thorex, and approx. 7% for TBP-25 by calcination to 1200/sup 0/C. Semicontinuous evaporation and calcination to solids at 900/sup 0/C of Darex and Purex wastes gave volume reduction factors of approx. 8 and 7 to 10, respectively. The nitrate contents of the residues from batch calcination to 800/sup 0/C were from approx. 0.07 to 0.5 wt % while the nitrate contents of the residues from semicontinuous calcination to 900/sup 0/C were from approx. 0.1 to 0.7 wt %. Sodium, calcium, and magnesium additives to Purex waste decreased the percent of sulfate volatilized into the condensate from approx. 30% to <0.5%. Replacement of the atmosphere above the waste with nitric oxide decreased ruthenium volatility from 50 to 60% of that originally present in Purex waste to 0.5 to 3.5%. The thermal conductivities for the calcined wastes, measured in situ, were all >0.1 Btu/hr ft /sup 0/F at approx. 400/sup 0/F and increased almost linearly with increasing temperature to >0.3 Btu/hr ft /sup 0/F at approx. 1600/sup 0/F in all cases studied.
- Research Organization:
- Oak Ridge National Lab., TN (USA)
- DOE Contract Number:
- W-7405-ENG-26
- OSTI ID:
- 5421216
- Report Number(s):
- ORNL-2986
- Country of Publication:
- United States
- Language:
- English
Similar Records
LABORATORY DEVELOPMENT OF A POT CALCINATION PROCESS FOR CONVERTING LIQUID WASTES TO SOLIDS
ENGINEERING STUDIES ON POT CALCINATION FOR ULTIMATE DISPOSAL OF NUCLEAR WASTE FROM THE TBP-25, DAREX, AND PUREX PROCESSES. PART I. THE SYSTEM EVALUATION
Engineering studies on pot calcination for ultimate disposal of nuclear waste from the TBP-25, DAREX, and PUREX processes. Part I. The system evaluation
Technical Report
·
Thu Sep 14 00:00:00 EDT 1961
·
OSTI ID:4841144
ENGINEERING STUDIES ON POT CALCINATION FOR ULTIMATE DISPOSAL OF NUCLEAR WASTE FROM THE TBP-25, DAREX, AND PUREX PROCESSES. PART I. THE SYSTEM EVALUATION
Technical Report
·
Mon Sep 23 00:00:00 EDT 1963
·
OSTI ID:4634964
Engineering studies on pot calcination for ultimate disposal of nuclear waste from the TBP-25, DAREX, and PUREX processes. Part I. The system evaluation
Technical Report
·
Mon Sep 23 00:00:00 EDT 1963
·
OSTI ID:6892265
Related Subjects
052001* -- Nuclear Fuels-- Waste Processing
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
ADDITIVES
ALKALI METALS
ALKALINE EARTH METALS
CALCINATION
CALCINED WASTES
CALCIUM
CHEMICAL REACTIONS
DAREX PROCESS
DECOMPOSITION
ELEMENTS
EVAPORATION
MAGNESIUM
MANAGEMENT
MATERIALS
METALS
NITRATES
NITROGEN COMPOUNDS
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
PROCESSING
PUREX PROCESS
PYROLYSIS
RADIOACTIVE MATERIALS
RADIOACTIVE WASTE PROCESSING
RADIOACTIVE WASTES
REPROCESSING
SEPARATION PROCESSES
SIMULATION
SODIUM
SOLIDIFICATION
SULFATES
SULFUR COMPOUNDS
THERMAL CONDUCTIVITY
THERMOCHEMICAL PROCESSES
THERMODYNAMIC PROPERTIES
THOREX PROCESS
VERY HIGH TEMPERATURE
WASTE MANAGEMENT
WASTE PROCESSING
WASTES
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
ADDITIVES
ALKALI METALS
ALKALINE EARTH METALS
CALCINATION
CALCINED WASTES
CALCIUM
CHEMICAL REACTIONS
DAREX PROCESS
DECOMPOSITION
ELEMENTS
EVAPORATION
MAGNESIUM
MANAGEMENT
MATERIALS
METALS
NITRATES
NITROGEN COMPOUNDS
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
PROCESSING
PUREX PROCESS
PYROLYSIS
RADIOACTIVE MATERIALS
RADIOACTIVE WASTE PROCESSING
RADIOACTIVE WASTES
REPROCESSING
SEPARATION PROCESSES
SIMULATION
SODIUM
SOLIDIFICATION
SULFATES
SULFUR COMPOUNDS
THERMAL CONDUCTIVITY
THERMOCHEMICAL PROCESSES
THERMODYNAMIC PROPERTIES
THOREX PROCESS
VERY HIGH TEMPERATURE
WASTE MANAGEMENT
WASTE PROCESSING
WASTES