Radionuclides and other elements distribution in the catalão i phosphate ore rocks, Brazil, and their industrial (by) products

Detalhes bibliográficos
Autor(a) principal: Conceição, F. T.
Data de Publicação: 2009
Outros Autores: Bonotto, D. M., Jimenez-Rueda, J. R., Oliveira, E. G., Mancini, L. H., Duarte, C. R., Navarro, R. B.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da Universidade Federal do Ceará (UFC)
Texto Completo: http://www.repositorio.ufc.br/handle/riufc/64957
Resumo: This investigation focused the distribution of radionuclides and others elements in the Catalão I phosphate ore rocks, Brazil, and their industrial (by) products. The flotationeparation process causes the incorporation of no more than 10%, 15% and 30% of radionuclides, heavy metals and fluorine, respectively, into the concentrated phosphate. The radionuclides and heavy metals existent in phosphate fertilizers applied in Brazilian crops according to the recommended rates, do not raise their concentration in soils to harmful levels, consequently, not offering hazard to the ecosystem and animal or human health. The 238U intake of raw phosphoric acid is higher than the guideline value proposed by Health Canada, whereas the maximum annual dose ingested through raw phosphoric acid consumption just represents 25% of the annual effective dose estimated due to food ingestion.
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spelling Radionuclides and other elements distribution in the catalão i phosphate ore rocks, Brazil, and their industrial (by) productsDistribuição de radionuclídeosRochas fosfáticas de CatalãoProdutos industriaisThis investigation focused the distribution of radionuclides and others elements in the Catalão I phosphate ore rocks, Brazil, and their industrial (by) products. The flotationeparation process causes the incorporation of no more than 10%, 15% and 30% of radionuclides, heavy metals and fluorine, respectively, into the concentrated phosphate. The radionuclides and heavy metals existent in phosphate fertilizers applied in Brazilian crops according to the recommended rates, do not raise their concentration in soils to harmful levels, consequently, not offering hazard to the ecosystem and animal or human health. The 238U intake of raw phosphoric acid is higher than the guideline value proposed by Health Canada, whereas the maximum annual dose ingested through raw phosphoric acid consumption just represents 25% of the annual effective dose estimated due to food ingestion.Este trabalho enfocou a distribuição de radionuclídeos e outros elementos nas rochas fosfáticas de Catalão I e seus produtos industriais. O processo de flotaçãoseparação ocasiona a incorporação de até 10%, 15% e 30% de radionuclídeos, metais pesados e flúor, respectivamente, no concentrado de fosfato. Os radionuclídeos e metais pesados existentes nos fertilizantes à base de fosfato aplicados na agricultura brasileira de acordo com as taxas recomendadas não ocasionam a elevação dos valores de concentração até níveis prejudiciais, portanto, não oferecendo risco ao ecossistema e saúde animal ou humana. A ingestão de 238U presente no ácido fosfórico bruto é maior que o valor de referência proposto por Health Canada, enquanto que a máxima dose anual associada ao consumo de ácido fosfórico bruto representa apenas 25% da dose anual efetiva associada à ingestão de alimentos.Geochimica Brasiliensis2022-04-07T17:36:45Z2022-04-07T17:36:45Z2009info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfCONCEIÇÃO, F. T. et al. Radionuclides and other elements distribution in the catalão i phosphate ore rocks, Brazil, and their industrial (by) products. Geochimica Brasiliensis, [s.l.], v. 23, n. 2, p. 241-254, 2009.2358-2812http://www.repositorio.ufc.br/handle/riufc/64957Conceição, F. T.Bonotto, D. M.Jimenez-Rueda, J. R.Oliveira, E. G.Mancini, L. H.Duarte, C. R.Navarro, R. B.info:eu-repo/semantics/openAccessengreponame:Repositório Institucional da Universidade Federal do Ceará (UFC)instname:Universidade Federal do Ceará (UFC)instacron:UFC2023-10-10T17:28:41Zoai:repositorio.ufc.br:riufc/64957Repositório InstitucionalPUBhttp://www.repositorio.ufc.br/ri-oai/requestbu@ufc.br || repositorio@ufc.bropendoar:2024-09-11T18:35:56.368682Repositório Institucional da Universidade Federal do Ceará (UFC) - Universidade Federal do Ceará (UFC)false
dc.title.none.fl_str_mv Radionuclides and other elements distribution in the catalão i phosphate ore rocks, Brazil, and their industrial (by) products
title Radionuclides and other elements distribution in the catalão i phosphate ore rocks, Brazil, and their industrial (by) products
spellingShingle Radionuclides and other elements distribution in the catalão i phosphate ore rocks, Brazil, and their industrial (by) products
Conceição, F. T.
Distribuição de radionuclídeos
Rochas fosfáticas de Catalão
Produtos industriais
title_short Radionuclides and other elements distribution in the catalão i phosphate ore rocks, Brazil, and their industrial (by) products
title_full Radionuclides and other elements distribution in the catalão i phosphate ore rocks, Brazil, and their industrial (by) products
title_fullStr Radionuclides and other elements distribution in the catalão i phosphate ore rocks, Brazil, and their industrial (by) products
title_full_unstemmed Radionuclides and other elements distribution in the catalão i phosphate ore rocks, Brazil, and their industrial (by) products
title_sort Radionuclides and other elements distribution in the catalão i phosphate ore rocks, Brazil, and their industrial (by) products
author Conceição, F. T.
author_facet Conceição, F. T.
Bonotto, D. M.
Jimenez-Rueda, J. R.
Oliveira, E. G.
Mancini, L. H.
Duarte, C. R.
Navarro, R. B.
author_role author
author2 Bonotto, D. M.
Jimenez-Rueda, J. R.
Oliveira, E. G.
Mancini, L. H.
Duarte, C. R.
Navarro, R. B.
author2_role author
author
author
author
author
author
dc.contributor.author.fl_str_mv Conceição, F. T.
Bonotto, D. M.
Jimenez-Rueda, J. R.
Oliveira, E. G.
Mancini, L. H.
Duarte, C. R.
Navarro, R. B.
dc.subject.por.fl_str_mv Distribuição de radionuclídeos
Rochas fosfáticas de Catalão
Produtos industriais
topic Distribuição de radionuclídeos
Rochas fosfáticas de Catalão
Produtos industriais
description This investigation focused the distribution of radionuclides and others elements in the Catalão I phosphate ore rocks, Brazil, and their industrial (by) products. The flotationeparation process causes the incorporation of no more than 10%, 15% and 30% of radionuclides, heavy metals and fluorine, respectively, into the concentrated phosphate. The radionuclides and heavy metals existent in phosphate fertilizers applied in Brazilian crops according to the recommended rates, do not raise their concentration in soils to harmful levels, consequently, not offering hazard to the ecosystem and animal or human health. The 238U intake of raw phosphoric acid is higher than the guideline value proposed by Health Canada, whereas the maximum annual dose ingested through raw phosphoric acid consumption just represents 25% of the annual effective dose estimated due to food ingestion.
publishDate 2009
dc.date.none.fl_str_mv 2009
2022-04-07T17:36:45Z
2022-04-07T17:36:45Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv CONCEIÇÃO, F. T. et al. Radionuclides and other elements distribution in the catalão i phosphate ore rocks, Brazil, and their industrial (by) products. Geochimica Brasiliensis, [s.l.], v. 23, n. 2, p. 241-254, 2009.
2358-2812
http://www.repositorio.ufc.br/handle/riufc/64957
identifier_str_mv CONCEIÇÃO, F. T. et al. Radionuclides and other elements distribution in the catalão i phosphate ore rocks, Brazil, and their industrial (by) products. Geochimica Brasiliensis, [s.l.], v. 23, n. 2, p. 241-254, 2009.
2358-2812
url http://www.repositorio.ufc.br/handle/riufc/64957
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Geochimica Brasiliensis
publisher.none.fl_str_mv Geochimica Brasiliensis
dc.source.none.fl_str_mv reponame:Repositório Institucional da Universidade Federal do Ceará (UFC)
instname:Universidade Federal do Ceará (UFC)
instacron:UFC
instname_str Universidade Federal do Ceará (UFC)
instacron_str UFC
institution UFC
reponame_str Repositório Institucional da Universidade Federal do Ceará (UFC)
collection Repositório Institucional da Universidade Federal do Ceará (UFC)
repository.name.fl_str_mv Repositório Institucional da Universidade Federal do Ceará (UFC) - Universidade Federal do Ceará (UFC)
repository.mail.fl_str_mv bu@ufc.br || repositorio@ufc.br
_version_ 1813028870817841152

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