The reduction of reactor effluent water radionuclides by the addition of sodium silicate to process water; 105D half plant addition
Research and development on the reduction of radionuclides discharged to the Columbia River in reactor effluent is described. Sodium silicate was added to the process water supplying 1/2 of the D Reactor at an average concentration of 15 ppm, which gradually reduced the radionuclide concentration entering the Columbia River. After the 8th month an equilibrium condition was reached, and the levels of /sup 76/As, /sup 51/Cr, /sup 239/Np, /sup 32/P, /sup 124/Sb, and /sup 64/Cu were lowered by factors of about 9.0, 7.0, 6.0, 3.0, 3.0 to 5.0 and 1.5 respectively. Concentration of /sup 65/Zn remained unchanged. The only significant increases were due to /sup 24/Na, and trace amounts of /sup 140/La and other rare earth elements. Cobalt-60 and /sup 46/Sc behaved erratically. The studies suggest that if sodium silicate were used on a full scale (5 reactor basis), river concentration of radionuclides could be proportionally reduced.
- Research Organization:
- Pacific Northwest Lab., Richland, WA (USA)
- OSTI ID:
- 6585680
- Resource Relation:
- Other Information: Thesis (Ph.D.)
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
HANFORD PRODUCTION REACTORS
RADIOACTIVE EFFLUENTS
WATER TREATMENT
SODIUM SILICATES
ADDITIVES
WATER COOLED REACTORS
ANTIMONY 124
ARSENIC 76
CHROMIUM 51
COPPER 64
EXPERIMENTAL DATA
LANTHANUM 140
NEPTUNIUM 239
PHOSPHORUS 32
QUANTITY RATIO
RADIOISOTOPES
SCANDIUM 46
ZINC 65
ACTINIDE ISOTOPES
ACTINIDE NUCLEI
ALKALI METAL COMPOUNDS
ANTIMONY ISOTOPES
ARSENIC ISOTOPES
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
CHROMIUM ISOTOPES
COPPER ISOTOPES
DATA
DAYS LIVING RADIOISOTOPES
ELECTRON CAPTURE RADIOISOTOPES
EVEN-ODD NUCLEI
HEAVY NUCLEI
HOURS LIVING RADIOISOTOPES
INFORMATION
INTERMEDIATE MASS NUCLEI
INTERNAL CONVERSION RADIOISOTOPES
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
LANTHANUM ISOTOPES
LIGHT NUCLEI
MATERIALS
MINUTES LIVING RADIOISOTOPES
NEPTUNIUM ISOTOPES
NUCLEI
NUMERICAL DATA
ODD-EVEN NUCLEI
ODD-ODD NUCLEI
OXYGEN COMPOUNDS
PHOSPHORUS ISOTOPES
PLUTONIUM PRODUCTION REACTORS
PRODUCTION REACTORS
RADIOACTIVE MATERIALS
RADIOACTIVE WASTES
RARE EARTH ISOTOPES
RARE EARTH NUCLEI
REACTORS
SCANDIUM ISOTOPES
SECONDS LIVING RADIOISOTOPES
SILICATES
SILICON COMPOUNDS
SODIUM COMPOUNDS
WASTES
ZINC ISOTOPES
220500* - Nuclear Reactor Technology- Environmental Aspects