Environmental Control In Mining
Mostrando 13-23 de 23 artigos, teses e dissertações.
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13. GESTÃO DE RISCOS E PLANO DE AÇÕES EMERGENCIAIS APLICADO À BARRAGEM DE CONTENÇÃO DE REJEITOS CASA DE PEDRA/CSN
Mineral production in Brazil has been greatly increased in recent years, particularly in the region of the province of mineral Quadrilátero Ferrífero, which has required on the part of mining companies, adopting policies to control and monitoring of their tailings disposal systems. Recent breakthroughs of these structures have mobilized considerable concer
Publicado em: 2009
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14. Modelagem espaço temporal do uso do solo e potencial de erosão no Vale do Ribeira / Spatio temporal modeling the soil use and potential of erosions in the Ribeira Valley
This paper comprises an experiment to map hidden patterns in multi-source data that could be associated with Pb geochemical soil anomalies. The study area is confined between the Apiaí Fold-Belt, hosts numerous Pb and Zn deposits; it was under the influence of regional Pb mining and Pb refinery factory activities until 1995; and exhibits soils enriched in P
Publicado em: 2008
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15. Cartografia das atividades de extração de minerais utilizados na Construção Civil e qualificação do grau de degradação ambiental na Região de Manaus-AM / Cartography of the activities of mineral extration used in the Civil Construction and qualification of the degree of environemental degradation in the Region of Manaus-AM-Brazil
O presente estudo foi concluído a partir da análise do tamanho das áreas degradadas e da magnitude das degradações constatadas em cada área. Este estudo foi apoiado, principalmente, em dados de campo e análise visual de imagens de satélite. Os dados de campo foram obtidos por meio de consultas de processos de licenciamento mineral-ambiental no órgã
Publicado em: 2008
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16. PREDIÇÃO DO POTENCIAL DE DRENAGEM ÁCIDA DE MINAS UTILIZANDO O MÉTODO CINÉTICO DA COLUNA DE LIXIVIAÇÃO / POTENTIAL PREDICTION OF ACID MINE DRAINAGE EMPLOYING LEACHING COLUMN KINETIC METHOD
The acid rock mine drainage (ARD) arising from sulfides oxidation in mining areas is a serious environmental problem that markedly affects the quality of the surrounding water. Choosing the measure for remediation and/or preventing pollution effect depends on a suitable evaluation through a prediction program, it has principally tests of the acid generation
Publicado em: 2007
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17. A Mineração de Brita na Região Metropolitana do Rio de Janeiro
The crushed stone mining directly supplies the raw material used in civil construction, making possible the execution of basic infrastructure, construction and paving works in general, playing a fundamental role in the urban development. Such development along with the necessity of the supplier-consumer proximity has approximated the population and the miner
Publicado em: 2005
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18. Áreas verdes como redestinação de áreas degradadas pela mineração: estudo de casos nos municípios de Riberião Preto, Itu e Campinas, estado de São Paulo / Green areas recovered from degraded mining sites: case studies in the municipalities of Ribeirão Preto, Itu and Campinas, State of São Paulo
A finalidade das áreas verdes é oferecer, à população dos grandes centros urbanos, oportunidades de lazer, recreação, bem-estar, aumentando, assim, sua qualidade de vida e seu contato com a natureza. O aumento do índice de áreas verdes nas cidades, expresso pela metragem quadrada de espaços livres de uso público em relação à sua população abs
Publicado em: 2005
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19. Valoração ambiental : casos da mineradora Viterbo Machado Luz
ln the last decades, the economic debate concerning to questions such as intensive utilization of natural (faunistic, floristic, hydric, mineral etc.) resources, and the serious socio-economic consequences generated by the pollution of the enviromment has put the relation Man-Nature in the centre of the economics attention. In order to propose the economical
Publicado em: 2003
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20. Os rumos do licenciamento ambiental da mineração no Estado de São Paulo : estudos de caso de licenciamento de bens minerais de uso imediato na construção civil
This work presents a propositional and critica! analysis of the, showing the adopted procedures evolution between 1976 and 1998. On a bistorical approch the environmental arrangement is discussed and the actions of the State related to the environmental policy are also analysed, specially associated with mining activity. It is shown some informations about m
Publicado em: 2001
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21. Avaliação de impacto ambiental de projetos de mineração no Estado de São Paulo: a etapa de acompanhamento. / Environmental impact assessment of mining projects: the follow-up phase.
Since procedures of environmental impact assessment (EIA) were regulated in Brazil, in the mid eighties, numerous mining projects have been assessed, approved and granted environmental permits in the State of São Paulo, draining a great part of the scarce human and material resources available for reviewing environmental studies. Notwithstanding, there are
Publicado em: 2001
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22. Avaliação da recuperação de áreas degradadas por mineração na região metropolitana de São Paulo. / Rehabilitation of degraded areas in metropolitan region of São Paulo, Brazil.
This work deals with the assessment of mine reclamation procedures in the Sao Paulo Metropolitan Region (RMSP). It begin with the presentation of the problem and of the hypothesis which orientated the research work. The very incipient character of the reclamation works is emphazised as well its potential role in urban areas (Chapter 1). Chapter 2 describes t
Publicado em: 1997
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23. Dust exposure and mortality in an American chrysotile textile plant.
Three parallel cohort studies of asbestos factory workers were undertaken to investigate the effects of mineral fibre type and industrial process on malignant mesothelioma, respiratory cancer, and asbestosis. This report describes the mortality of a cohort of 2543 men, defined as all those employed for at least a month from 1938 to 1958 in a textile plant in