Natural radioactive elements and heavy metals in coal, fly ash and bottom ash from a thermal power plant
- Univ. of the Balearic Islands, Palma de Mallorca (Spain)
The composition of coal used as fuel at a thermal power plant and those of the fly and bottom ashes it produces were determined. Radioactive elements were analysed for by alpha and gamma spectrometry, while sulphur, carbon and nitrogen were determined by burning. Heavy metals were quantified by X-ray fluorescence spectrometry and inductively coupled plasma atomic emission spectroscopy (ICPAES). The low sulphur content of the coal (0.68%) gives rise to fly ash containing only 0.21% of this element. The radiochemical analyses performed by alpha spectrometry revealed that most of the uranium remains in the solid residue resulting from disaggregation of the sample with Na[sub 2]CO[sub 3] in the separation process. Also, the gamma spectrometric results show that the elements from the 4n and 4n + 2 series and [sup 40]K concentrate in fly ash, the mean particle size of which is the smallest of all the residues assayed. 8 refs., 5 figs., 5 tabs.
- OSTI ID:
- 5497438
- Journal Information:
- Journal of Environmental Science and Health, Part A: Environmental Science and Engineering; (United States), Vol. 28:9; ISSN 0360-1226
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
01 COAL, LIGNITE, AND PEAT
ASHES
CHEMICAL COMPOSITION
COAL
COMBUSTION
FLY ASH
RADIOACTIVE MATERIALS
SPECTROSCOPY
URANIUM COMPOUNDS
EXPERIMENTAL DATA
FOSSIL-FUEL POWER PLANTS
POTASSIUM 40
RADIOACTIVE EFFLUENTS
SODIUM CARBONATES
THORIUM 232
URANIUM 238
ACTINIDE COMPOUNDS
ACTINIDE ISOTOPES
ACTINIDE NUCLEI
AEROSOL WASTES
ALKA
ALKALI METAL COMPOUNDS
ALPHA DECAY RADIOISOTOPES
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
CARBON COMPOUNDS
CARBONACEOUS MATERIALS
CARBONATES
CHEMICAL REACTIONS
COMBUSTION PRODUCTS
DATA
ELECTRON CAPTURE RADIOISOTOPES
ENERGY SOURCES
EVEN-EVEN NUCLEI
FOSSIL FUELS
FUELS
HEAVY NUCLEI
INFORMATION
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
LIGHT NUCLEI
MATERIALS
NANOSEC LIVING RADIOISOTOPES
NUCLEI
NUMERICAL DATA
ODD-ODD NUCLEI
OXIDATION
OXYGEN COMPOUNDS
POTASSIUM ISOTOPES
POWER PLANTS
RADIOACTIVE WASTES
RADIOISOTOPES
RESIDUES
SODIUM COMPOUNDS
SPONTANEOUS FISSION RADIOISOTOPES
THERMAL POWER PLANTS
THERMOCHEMICAL PROCESSES
THORIUM ISOTOPES
URANIUM ISOTOPES
WASTES
YEARS LIVING RADIOISOTOPES
200202* - Fossil-Fueled Power Plants- Waste Management- Noxious Gas & Particulate Emissions
400700 - Radiochemistry & Nuclear Chemistry
400102 - Chemical & Spectral Procedures
010600 - Coal
Lignite
& Peat- Properties & Composition
014000 - Coal
Lignite
& Peat- Combustion