Research and development activities: fixation of radioactive residues. Quarterly progress report, July-September 1962
- ed.
In calcination and solidification studies, the radiant-heat calciner performed satisfactorily with full-level Purex 1ww feed yielding a dry melted product. Development work on in-tank solidification of bulk salt waste was continued. Studies concerning packaging of radiocesium and radiostrontium were started. In sorption and extraction studies, evaluation of the cation exchange characteristics of commercially available zeolite continued. Several binary systems were studied in detail, and limited studies on a ternary system were made. Experiments were continued in the Micro Pilot Plant (MPP) to improve ion exchange removal of Ru from Purex Tank Farm condensate and to better understand Ru removal so that it can be predicted. Ru appears to be present primarily in the anionic form, but some is present in the cationic form. Although combined treatments of cation and anion exchange efficiently remove Ru, the presence of nitrates and nitrites in the condensate waste reduce the efficiency unless they are also removed. Flowsheets for removal of Cs from Purex wastes were firmed up. These flowsheets are based on the use of both natural and synthetic inorganic ion exchangers. Engineering-scale studies of the loading of Sr on inorganic zeolites for use in fission-product packaging schemes were started. Poor Sr sorption kinetics were observed when 1/16-in. pellets were used in the packed beds. Further laboratory work was started to study methods of improving the kinetics of the process.
- Research Organization:
- General Electric Co., Richland, WA (USA). Hanford Atomic Products Operation
- DOE Contract Number:
- AT(45-1)-1350
- OSTI ID:
- 5519147
- Report Number(s):
- HW-75290
- Country of Publication:
- United States
- Language:
- English
Similar Records
RESEARCH AND DEVELOPMENT ACTIVITIES--FIXATION OF RADIOACTIVE RESIDUES. Quarterly Progress Report, October-December 1962
RESEARCH AND DEVELOPMENT ACTIVITIES. FIXATION OF RADIOACTIVE RESIDUES. Quarterly Progress Report, January-March 1963
Related Subjects
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
ALKALI METALS
ALKALINE EARTH METALS
CALCINATION
CESIUM
CHEMICAL REACTIONS
DECOMPOSITION
DIAGRAMS
ELEMENTS
EVALUATION
FLOWSHEETS
INORGANIC ION EXCHANGERS
ION EXCHANGE
ION EXCHANGE MATERIALS
MANAGEMENT
MATERIALS
METALS
MINERALS
PACKAGING
PACKED BED
PHASE TRANSFORMATIONS
PLATINUM METALS
PROCESSING
PUREX PROCESS
PYROLYSIS
RADIOACTIVE WASTE PROCESSING
REPROCESSING
RUTHENIUM
SEPARATION PROCESSES
SOLIDIFICATION
STRONTIUM
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENTS
WASTE MANAGEMENT
WASTE PROCESSING
ZEOLITES