Research and development activities: fixation of radioactive residues. Quarterly progress report, April-June 1960
- ed.
Progress is reported in research and development work in the field of fixation of residues from radioactive wastes. The areas of investigation include studies of various waste-treatment processes, such as calcination, fixation in silicates, and utilization of certain minerals having selective retentivity for certain isotopes or groups of isotopes, as well as waste-disposal studies and economic aspects of both treatment and disposal. Waste calcination studies were continued in the fluid-bed calciner using simulated high acid Purex waste as feed. A batch calcination facility capable of handling pots 54-in. high and 14-in. in diameter was built. Studies were continued on methods of improving the thermal conductivity of calcined powder. Data are included on the effect of feed rate, steam pressure, and sugar concentration on powder holdup on the column walls and on the extent of calcination of the powder formed from Purex waste. Neutralized Zirflex waste was successfully calcined. Corrosion tests were continued. Laboratory experiments were conducted to study the effect of ..gamma.. irradiation on the ability of clinoptilolite to absorb cesium. Studies were also made on the influence of solution pH on anion replacement reactions in minerals. Laboratory studies to investigate the possibility of direct decontamination of some types of high-level wastes gave promising results. The effectiveness of clinoptilolite columns was tested with aged Redox high-salt waste,aluminum coated wastes, and Purex high-salt wastes. Data are tabulated from tests on cesium removal by clinoptilolite. The arrangement of the micro pilot plant used in the studies is illustrated photographically. Several metals were examined to determine their ability to decontaminate ruthenium.
- Research Organization:
- General Electric Co., Richland, WA (USA). Hanford Atomic Products Operation
- OSTI ID:
- 5491771
- Report Number(s):
- HW-66571
- Country of Publication:
- United States
- Language:
- English
Similar Records
Research and development activities: fixation of radioactive residues. Quarterly progress report, July-September 1960
RESEARCH AND DEVELOPMENT ACTIVITIES, FIXATION OF RADIOACTIVE RESIDUES QUARTERLY PROGRESS REPORT FOR JULY-SEPTEMBER 1960
Related Subjects
052002 -- Nuclear Fuels-- Waste Disposal & Storage
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
ADSORPTION
ALKALI METALS
CALCINATION
CALCINED WASTES
CESIUM
CHEMICAL REACTIONS
CLEANING
CLINOPTILOLITE
DECOMPOSITION
DECONTAMINATION
ECONOMICS
ELECTROMAGNETIC RADIATION
ELEMENTS
GAMMA RADIATION
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
IONIZING RADIATIONS
MANAGEMENT
MATERIALS
METALS
MINERALS
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
PHYSICAL RADIATION EFFECTS
PLATINUM METALS
PROCESSING
PUREX PROCESS
PYROLYSIS
RADIATION EFFECTS
RADIATIONS
RADIOACTIVE MATERIALS
RADIOACTIVE WASTE DISPOSAL
RADIOACTIVE WASTE PROCESSING
RADIOACTIVE WASTES
REPROCESSING
RESEARCH PROGRAMS
RUTHENIUM
SEPARATION PROCESSES
SILICATE MINERALS
SILICATES
SILICON COMPOUNDS
SOLIDIFICATION
SORPTION
SORPTIVE PROPERTIES
SURFACE PROPERTIES
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENTS
WASTE DISPOSAL
WASTE MANAGEMENT
WASTE PROCESSING
WASTES
ZEOLITES