Radiation hazard indices in the application of phosphogypsum mixtures as a building material: proposal for a Brazilian regulation
Fuente:
Redalyc
Enregistré dans:
| Auteur principal: | |
|---|---|
| Format: | Artículo científico |
| Langue: | en |
| Publié: |
Sociedade Brasileira de Proteção Radiológica - SBPR
2019
|
| Sujets: | |
| Accès en ligne: | |
| Tags: |
Ajouter un tag
Pas de tags, Soyez le premier à ajouter un tag!
|
| _version_ | 1876436072549842944 |
|---|---|
| author | Marcelo Francis Máduar |
| author_facet | Marcelo Francis Máduar |
| contents | Radiation hazard indices in the application of phosphogypsum mixtures as a building material: proposal for a Brazilian regulation Marcelo Francis Máduar Barbara Paci Mazzilli Marcelo Bessa Nisti Biología NORM Phosphogypsum radiation hazard index Phosphogypsum (PG), a by-product from the phosphoric acid industry, is being worldwide stockpiled, posing environmental problems. Viability of the PG safe re-use in civil construction has been studied, as PG can contain natural radionuclides in significant concentrations. We propose a policy for using PG as a building material, limiting the total concentration of 226Ra plus 228Ra by mixing PG with natural gypsum. It was concluded that PG from the largest Brazilian deposits could be used without any dilution, when the sum of the activity concentrations of 226Ra and 228Ra does not exceed 150 Bq kg-1 . For higher values, the approach is to mix PG with increasing amounts of natural gypsum, so that the final concentration does not exceed 1000 Bq kg-1 . We show that PG re-use in such a way is feasible in terms of radiological protection and recommended to minimize PG piles environmental impact. 2019 artículo científico 2319-0612 https://www.redalyc.org/articulo.oa?id=722280899010 en http://www.redalyc.org/revista.oa?id=7222 Brazilian Journal of Radiation Sciences application/pdf Sociedade Brasileira de Proteção Radiológica - SBPR Brazilian Journal of Radiation Sciences (Brasil) Num.3 Vol.7 |
| format | Artículo científico |
| id | redalyc_722280899010 |
| institution | Redalyc |
| language | en |
| publishDate | 2019 |
| publisher | Sociedade Brasileira de Proteção Radiológica - SBPR |
| spellingShingle | Radiation hazard indices in the application of phosphogypsum mixtures as a building material: proposal for a Brazilian regulation Marcelo Francis Máduar Biología NORM Phosphogypsum radiation hazard index Radiation hazard indices in the application of phosphogypsum mixtures as a building material: proposal for a Brazilian regulation Marcelo Francis Máduar Barbara Paci Mazzilli Marcelo Bessa Nisti Biología NORM Phosphogypsum radiation hazard index Phosphogypsum (PG), a by-product from the phosphoric acid industry, is being worldwide stockpiled, posing environmental problems. Viability of the PG safe re-use in civil construction has been studied, as PG can contain natural radionuclides in significant concentrations. We propose a policy for using PG as a building material, limiting the total concentration of 226Ra plus 228Ra by mixing PG with natural gypsum. It was concluded that PG from the largest Brazilian deposits could be used without any dilution, when the sum of the activity concentrations of 226Ra and 228Ra does not exceed 150 Bq kg-1 . For higher values, the approach is to mix PG with increasing amounts of natural gypsum, so that the final concentration does not exceed 1000 Bq kg-1 . We show that PG re-use in such a way is feasible in terms of radiological protection and recommended to minimize PG piles environmental impact. 2019 artículo científico 2319-0612 https://www.redalyc.org/articulo.oa?id=722280899010 en http://www.redalyc.org/revista.oa?id=7222 Brazilian Journal of Radiation Sciences application/pdf Sociedade Brasileira de Proteção Radiológica - SBPR Brazilian Journal of Radiation Sciences (Brasil) Num.3 Vol.7 |
| title | Radiation hazard indices in the application of phosphogypsum mixtures as a building material: proposal for a Brazilian regulation |
| topic | Biología NORM Phosphogypsum radiation hazard index |
| url | https://www.redalyc.org/articulo.oa?id=722280899010 |