Use este identificador para citar ou linkar para este item:
https://repositorio.ufba.br/handle/ri/13708
Tipo: | Artigo de Periódico |
Título: | Environmental Impact of Uranium Mining and Ore Processing in the Lagoa Real District, Bahia, Brazil |
Título(s) alternativo(s): | Environmental Science and Technology |
Autor(es): | Carvalho, Ilson Guimarães Cidu, Rosa Pitsch, Helmut Beaucaire, Catherine Fanfani, Luca Zuddas, Pierpaolo |
Autor(es): | Carvalho, Ilson Guimarães Cidu, Rosa Pitsch, Helmut Beaucaire, Catherine Fanfani, Luca Zuddas, Pierpaolo |
Abstract: | Uranium mining and processing at Lagoa Real (Bahia, Brazil) started in 2000. Hydrogeochemical monitoring carried out from 1999 to 2001 revealed generally good quality of the water resources outside and inside the mineralized area. No chemical contamination in waters for domestic uses was observed. Hydrochemical characteristics did not vary significantly after 1 year of U exploitation, as compared to premining conditions. Due to the short time of mining, the results cannot exclude future variations in water quality. Leaching experiments helped to describe processes of ore and waste degradation. Sulfate was identified as an indicator for different types of contamination. Potential hazards related to local climate (hot rainy season) were identified. They indicate that tailings derived from the ore processing, destabilized by sulfuric acid attack, may induce acidification and salinization in the surrounding environment. Another potential source of environmental impact could be linked to local radium-rich mineralization, originating radon emission. |
Tipo de Acesso: | Acesso Aberto |
URI: | http://repositorio.ufba.br/ri/handle/ri/13708 |
Data do documento: | 2005 |
Aparece nas coleções: | Artigo Publicado em Periódico (IGEO) |
Arquivos associados a este item:
Arquivo | Descrição | Tamanho | Formato | |
---|---|---|---|---|
Ilson G. Carvalho.pdf | 338,87 kB | Adobe PDF | Visualizar/Abrir |
Os itens no repositório estão protegidos por copyright, com todos os direitos reservados, salvo quando é indicado o contrário.