Effects of Hanford high-level waste components on the solubility of cobalt, strontium, neptunium, plutonium, and americium
Experiments have been performed to identify Hanford high-level waste (HLW) solution components that significantly affect the solubility of cobalt, strontium, neptunium, plutonium, and americium. Further tests which quantified the effects of the significant components on strontium, plutonium, and americium solubility were also performed. The compounds controlling radioelement solubility were not identified. Twelve HLW solution components were studied. The components HEDTA and EDTA increased cobalt, strontium, and americium solubility through complexation of the metal ions. Americium solubility was also increased through apparent complexation by hydroxyacetate and citrate. Sodium nitrite decreased neptunium solubility by reduction of Np(VI) to the less soluble Np(V) oxidation state. Sodium carbonate and HEDTA increased neptunium solubility through complexation while, unexpectedly, EDTA decreased the solubility of neptunium. The components NaNO/sub 3/, NaOH, and NaAlO/sub 2/ increased plutonium solubility through the formation of soluble complexes. 13 references, 3 figures, 5 tables.
- Research Organization:
- Rockwell International Corp., Richland, WA (USA). Rockwell Hanford Operations
- DOE Contract Number:
- AC06-77RL01030
- OSTI ID:
- 5335758
- Report Number(s):
- RHO-RE-ST-3-P; ON: DE84006525
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
053000 -- Nuclear Fuels-- Environmental Aspects
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
ACTINIDES
ALKALI METAL COMPOUNDS
ALKALINE EARTH METALS
ALUMINATES
ALUMINIUM COMPOUNDS
AMERICIUM
AMINO ACIDS
CARBON COMPOUNDS
CARBONATES
CARBOXYLIC ACIDS
CHELATING AGENTS
COBALT
DATA
EDTA
ELEMENTS
EXPERIMENTAL DATA
HEDTA
HIGH-LEVEL RADIOACTIVE WASTES
HYDROGEN COMPOUNDS
HYDROXIDES
HYDROXY ACIDS
INFORMATION
MATERIALS
METALS
NEPTUNIUM
NITRATES
NITRITES
NITROGEN COMPOUNDS
NUMERICAL DATA
ORGANIC ACIDS
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PLUTONIUM
QUANTITY RATIO
RADIOACTIVE MATERIALS
RADIOACTIVE WASTES
SODIUM CARBONATES
SODIUM COMPOUNDS
SODIUM HYDROXIDES
SODIUM NITRATES
SOLUBILITY
STRONTIUM
TRANSITION ELEMENTS
TRANSPLUTONIUM ELEMENTS
TRANSURANIUM ELEMENTS
WASTES