Determination of naturally occurring radionuclides in liquid wastes from mining and milling
- Atomic Energy Organization of Iran, Teheran (Iran, Islamic Republic of)
An analytical method has been developed for the separation and determination of naturally occurring radionuclides (primordial and its decay products in ore samples and liquid wastes from mining and milling process). The radionuclides include U-238, Th-232, Ra-226, Pb-210 and Po-210. The methodology involves three steps: (1) Complete sample dissolution by wet oxidation; (2) Sequential separation of radionuclides by ion exchange and co-precipitation; and (3) Radiometric determination by alpha, beta and gamma counting spectroscopy. The detection limit for a radiochemical yield of approximately 72%, was 0.28 mBq per sample for Th-232, U-238 and Po-210. To test it`s applicability, the method was used with standard ore samples, soil and sediment. The analytical procedure was applied to a large number of liquid waste samples and the results of these analysis are presented.
- OSTI ID:
- 220908
- Report Number(s):
- CONF-950917--; ISBN 0-7918-1219-7
- Country of Publication:
- United States
- Language:
- English
Similar Records
Forage uptake of uranium series radionuclides in the vicinity of the anaconda uranium mill
Partitioning of natural radionuclides in the waste streams of coal-fired utilities
Related Subjects
ALPHA SPECTROSCOPY
BETA SPECTROSCOPY
COMPILED DATA
FEED MATERIALS PLANTS
GAMMA SPECTROSCOPY
ION EXCHANGE CHROMATOGRAPHY
LEAD 210
LIQUID WASTES
NATURAL RADIOACTIVITY
POLONIUM 210
RADIOACTIVE WASTE MANAGEMENT
RADIUM 226
SAMPLE PREPARATION
SEPARATION PROCESSES
THORIUM 232
URANIUM 238
URANIUM MINES