Radioactivity assessment of the waste deposited in Candonga’s lake after the Fundão dam’s collapse
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| Natura: | Artículo científico |
| Lingua: | en |
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Sociedade Brasileira de Proteção Radiológica - SBPR
2019
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| _version_ | 1876484281603194880 |
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| author | Carolina Braccini Freire |
| author_facet | Carolina Braccini Freire |
| contents | Radioactivity assessment of the waste deposited in Candonga’s lake after the Fundão dam’s collapse Carolina Braccini Freire Valeria Cuccia Talita O. Santos Gabriel L. Sales Fernando S. Lameiras Zildete Rocha Biología waste Fundão dam's collapse radioactivity assessment The collapse of the Fundão dam on November 5th, 2015, caused impacts along the hydrographic basin of Rio Doce. Renova Foundation has the mission to repair, restore and reconstruct the regions affected by this disaster. After the collapse, a huge amount of waste was deposited in Risoleta Neves Hydroelectric Power Plant’s lake (Candonga). This waste has been dredged out from the lake and deposited in a nearby pile. The use of the waste from this pile is being considered for civil construction. Samples of this waste pile were collected and they were characterized by X-rays diffraction and EDS analyses, which showed that it consists of 80% quartz, 11% hematite, 8% goethite and 1% clay, mainly kaolinite. There is also an organic matter consisting of branches, roots, and leaves of trees, and plants. Previous radiological analyses made before the collapse showed that the radionuclide content of the waste deposited in Fundão dam was very low. However, the waste deposited in Candonga’s lake has a new composition and it is important to evaluate its radioactivity assessment. The analysis results of the Candonda’s waste samples will be presented and compared to the results obtained in the Fundão dam samples, before its collapse. 2019 artículo científico 2319-0612 https://www.redalyc.org/articulo.oa?id=722280899012 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_722280899012 |
| institution | Redalyc |
| language | en |
| publishDate | 2019 |
| publisher | Sociedade Brasileira de Proteção Radiológica - SBPR |
| spellingShingle | Radioactivity assessment of the waste deposited in Candonga’s lake after the Fundão dam’s collapse Carolina Braccini Freire Biología waste Fundão dam's collapse radioactivity assessment Radioactivity assessment of the waste deposited in Candonga’s lake after the Fundão dam’s collapse Carolina Braccini Freire Valeria Cuccia Talita O. Santos Gabriel L. Sales Fernando S. Lameiras Zildete Rocha Biología waste Fundão dam's collapse radioactivity assessment The collapse of the Fundão dam on November 5th, 2015, caused impacts along the hydrographic basin of Rio Doce. Renova Foundation has the mission to repair, restore and reconstruct the regions affected by this disaster. After the collapse, a huge amount of waste was deposited in Risoleta Neves Hydroelectric Power Plant’s lake (Candonga). This waste has been dredged out from the lake and deposited in a nearby pile. The use of the waste from this pile is being considered for civil construction. Samples of this waste pile were collected and they were characterized by X-rays diffraction and EDS analyses, which showed that it consists of 80% quartz, 11% hematite, 8% goethite and 1% clay, mainly kaolinite. There is also an organic matter consisting of branches, roots, and leaves of trees, and plants. Previous radiological analyses made before the collapse showed that the radionuclide content of the waste deposited in Fundão dam was very low. However, the waste deposited in Candonga’s lake has a new composition and it is important to evaluate its radioactivity assessment. The analysis results of the Candonda’s waste samples will be presented and compared to the results obtained in the Fundão dam samples, before its collapse. 2019 artículo científico 2319-0612 https://www.redalyc.org/articulo.oa?id=722280899012 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 | Radioactivity assessment of the waste deposited in Candonga’s lake after the Fundão dam’s collapse |
| topic | Biología waste Fundão dam's collapse radioactivity assessment |
| url | https://www.redalyc.org/articulo.oa?id=722280899012 |