Resumo (PT):
Abstract (EN):
The research project “Belgium NORM Site”, coordinated by the Belgian Nuclear Research Centre
(SCK•CEN), aims to prepare a study of the environmental impact generated by the sludge of calcium
difluoride with radioactive elements, resulting from the phosphate industry. The phosphate rock,
depending on its geological origin, may be enriched in natural radionuclides either from the
uranium or thorium series (NORMs). Consequently, the processing of these types of ores generate
by-products and residues also enriched in natural radionuclides (IAEA 2013).
In this context, the physical, chemical and radiological characterization of soil samples and residues
from the study site were performed. Also, natural leaching tests with different variants and
determination of the coefficients of distribution among the main environmental compartments,
were carried out.
The results obtained will allow to develop mathematical models to describe the transport and
transfer of the radionuclides (Dinis 2007), as well as other contaminants, and propose measures for
the rehabilitation of the site.
Idioma:
Inglês
Tipo (Avaliação Docente):
Científica
Nº de páginas:
2