Mining And Sustainability
Mostrando 1-12 de 15 artigos, teses e dissertações.
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1. Thermal characterization of soil-cement bricks using mining tailings
Abstract Soil-cement bricks are earth construction materials that have been gaining prominence due to their environmental advantages. The Brazilian Technical Standard NBR 8491 establishes physical and mechanical procedures to characterize these bricks. However, the thermal characterization is an important assessment, since it is related to the building’s t
REM - International Engineering Journal. Publicado em: 2022
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2. Mapping of areas suitable for the application of biosolids in the Quadrilátero Ferrífero region, Minas Gerais, Brazil
Abstract The recovery of degraded areas is imperative for the sustainability of mining activities. The main action implemented to improve the chemical, physical and biological conditions of soils, tailings and sterile deposits is the incorporation of organic material. Biosolids (hygienized sewage sludge) are among the organic materials that can be applied. H
REM - International Engineering Journal. Publicado em: 2022
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3. Open stope stability assessment through artificial intelligence
Abstract Underground mining is a set of methods that allows the extraction of ore in depth, ensuring sustainability and economic viability. One of the problems that arise in underground mine operations is open stope stability. The method for assessing stabil ity of open stopes is the stability graph proposed by Mathews et al. (1981). It is possible to estima
REM, Int. Eng. J.. Publicado em: 2020-09
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4. Mine closure in Ouro Preto: the remnants of the 18th century gold rush and the tourism as an economic opportunity
Abstract Mine closure is the set of all activities that follow the end of the productive phase of a mine, characterizing itself as the process of returning an area transformed by mining into a new condition of sustainability, considering the potential future and the best possible reclamation of the area impacted. However, such an understanding was not concei
REM, Int. Eng. J.. Publicado em: 2019-03
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5. Thermal Behavior of Pyrite in the CO2 and N2 Atmosphere for Obtaining Pyrrhotite: A Magnetic Material
In the southern of Brazil the coal is composed of a large amount of pyrite (FeS2), an environmental problem for this region because the pyrite turns a waste. This work investigated the behavior of pyrite in CO2 and N2 atmospheres, aiming to identify better thermal treatment conditions of the pyrite waste that favor obtaining a material with magnetic properti
Mat. Res.. Publicado em: 18/10/2018
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6. Diversity and Efficiency of Rhizobia Communities from Iron Mining Areas Using Cowpea as a Trap Plant
ABSTRACT Mining is an important economic activity. However, its impact on environment must be accessed, mainly on relevant processes for their sustainability. The objective of this study was to evaluate the diversity and efficiency of symbiotic nitrogen fixing bacterial communities in soils under different types of vegetation in the Quadrilátero Ferrífero:
Rev. Bras. Ciênc. Solo. Publicado em: 24/08/2017
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7. Sustainable procurement portfolio management: a case study in a mining company
Abstract Sustainable procurement is a solution to integrate environmental and social considerations in all steps of procurement process, in order to reduce impacts on human health, environment, and human rights. Despite the existence of important works in this area, more studies for determining how the principles related to sustainable development can be int
Prod.. Publicado em: 10/04/2017
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8. Química Sem Fronteiras: o desafio da energia
Coal, natural gas and petroleum-based liquid fuels are still the most widely used energy sources in modern society. The current scenario contrasts with the foreseen shortage of petroleum that was spread out in the beginning of the XXI century, when the concept of "energy security" emerged as an urgent agenda to ensure a good balance between energy supply and
Quím. Nova. Publicado em: 2013
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9. Aspectos sócio-econômico-ambiental do processo de extração do caulim no município de Junco do Seridó-PB
The paper entitled "Socio-Economic and Environmental Process Extraction of Kaolin in the Municipality of Junco do Seridó/PB" is a guided study on the extraction of kaolin in the municipality of Junco do Seridó/PB, which is the largest production center of this mineral in the state Paraíba. This activity is the basis of an extensive and complex supply chai
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/11/2011
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10. Sustentabilidade operacional no contexto da indÃstria Mineral: caso da lavra de caulim no municÃpio de Cabo de Santo Agostinho
A presente DissertaÃÃo objetiva estudar a inserÃÃo da IndÃstria Mineral no modelo de Desenvolvimento SustentÃvel. Para tanto, fez-se uso de um estudo de caso - a lavra de minas da MineraÃÃo de Caulim Itapoama MineraÃÃo Ltda, localizada à Rodovia PE 60, km 12,80 no municÃpio de Cabo de Santo Agostinho-PE -, que contempla o consorciamento do mÃtod
Publicado em: 2008
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11. A aqÃicultura como alternativa de reabilitaÃÃo ambiental para Ãreas mineradas na RegiÃo Metropolitana do Recife â RMR e Goiana/PE
Currently, the Mineral Industry seeks to support the sector in models of social and environmental sustainability, because of conservation policies and increasing social demands. To this end, with complex environmental management systems that enable the creation of appropriate conditions (recovery) for future use (rehabilitation) of the exploited area (degrad
Publicado em: 2008
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12. Estrutura e restauração de cerradão em Palmas - TO e germinação de sementes de Buchenavia tomentosa Eichler, Hymenaea stigonocarpa Mart. ex Hayne, Guazuma ulmifolia Lam. e Enterolobium gummiferum (Mart.) J.F. Macbr / Structure and restoration of ceradões in Palmas-TO and germination of seeds of Buchenavia tomentosa Eichler, Hymenaea stigonocarpa Mart. ex Hayne, Guazuma ulmifolia Lam. and Enterolobium gummiferum (Mart.) J.F. Macbr
The fast growth of Brazil in the last decades, broadly divulged by the media wordwide is threateming severely the great diversity of the ecosystems found in the Country. In the State of Tocantins, Brazil, with the broadening of the agricultural and livestock frontier, of the real estate espansion and of the mining activities, great strips of the remaining ve
Publicado em: 2008