External gamma exposure due to the application of carbonate niobium tailing as soil amendment
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2019
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INTERNATIONAL NUCLEAR ATLANTIC CONFERENCE
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The storage of tailing from anthropic activities like mining, which may contain radionuclides, is a problematic situation consequent from NORM industries and for which alternatives should be sought. This paper presents the preliminary results for the use of a carbonate tailing derived from niobium extraction as soil amendment from the point of view of the radiological indices, since this material is a NORM residue. The activity concentration of radionuclides 226Ra, 228Ra and 40K were determined in six samples of carbonate by gamma spectrometry and the radiological hazard indices were calculated for the carbonate itself and simulated for soil application. The results indicated that the dilution of the carbonate in the soil do not increase the radiological hazard indices.
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AYLLON, RAFAELLA M.; TORRECILHA, JEFFERSON K.; SAUEIA, CATIA H.R.; NISTI, MARCELO B.; TORQUATO, HENRIQUE; EL HAJJ, THAMMIRIS M.; ZAHN, GUILHERME S.; SILVA, PAULO S.C. da. External gamma exposure due to the application of carbonate niobium tailing as soil amendment. In: INTERNATIONAL NUCLEAR ATLANTIC CONFERENCE, October 21-25, 2019, Santos, SP. Proceedings... Rio de Janeiro: Associação Brasileira de Energia Nuclear, 2019. p. 1318-1327. Disponível em: http://repositorio.ipen.br/handle/123456789/30564. Acesso em: 30 Dec 2025.
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