Operational Environmental Costs
Mostrando 1-12 de 34 artigos, teses e dissertações.
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1. Multi-stage dumping sequence - a feasible waste management alternative for open pit mining
Abstract Waste management and environmental aspects are progressively gathering attention in the mining industry. Mine planners must deal with increasingly complex tasks to balance between ore block schedules, waste disposal, operational cost and environmental reclamation. The mine incomes are generally related to mining and processing of the ore, thus most
REM, Int. Eng. J.. Publicado em: 2021-06
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2. NPV analysis of multiple surface constraints for pit expansion scenarios under geological uncertainty
Abstract To optimize a mining project, it is necessary to deal with several technical aspects and constraints, such as orebody modelling, reserve estimation, blending strategy, optimal and operational pit designs, cost control, environmental issues, among others. In this sense, locating surface infrastructures is one of the most critical mine planning concer
REM, Int. Eng. J.. Publicado em: 2019-06
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3. Relacionando níveis de maturidade em gestão ambiental e a adoção de práticas de Green Supply Chain Management: convergência teórica e estudo de múltiplos casos
Resumo Embora as temáticas de níveis de maturidade da gestão ambiental empresarial e a adoção de práticas de GSCM estejam se consolidando, elas percorreram, até o momento, um longo caminho desconectadas, embora ambas tenham sua gênese circunscrita à sustentabilidade empresarial. Buscou-se, por meio de múltiplos casos, a caracterização de um padr
Gest. Prod.. Publicado em: 18/03/2019
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4. Feasibility project for implementation of conveyor belts in an iron ore mine. Study case: Fabrica Mine in Minas Gerais State, Brazil
Abstract This article objectifies the implementation of a conveyor belt in an iron ore mine. The mine operational costs of the company Vale S.A. have a tendency to increase in coming years. This increase is related to the rising price of labor, fuel, tires, maintenance costs and large transport distances. Meanwhile, environmental impacts also need to be redu
Rem: Rev. Esc. Minas. Publicado em: 2016-03
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5. Micro-turbine design point definition using optimization techniques
During a gas turbine development phase an important engineer task is to find the appropriate engine design point that meet all required specifications. This task can be very arduous because all possible operating points in the gas turbine operational envelope need to be analyzed, for the sake of verification of whether or not the established performance migh
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/03/2012
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6. Alternativas de tratamento da água de lastro em portos exportadores de minério de ferro. / Ballast water treatment alternatives in the iron ore ports exporting.
This thesis aims at making a technical and economic analysis of the ballast water treatment in Brazilian iron ore ports. Three distinct treatment alternatives were studied: (1) onshore ballast water treatment; (2) water desalination plant to ballast water treatment; (3) onboard ballast water treatment in shuttle tanker vessels operating in the mooring, where
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 13/03/2012
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7. Ultraviolet radiation disinfection: study of process performance and economic evaluation / Desinfecção por radiação ultravioleta: estudo do desempenho do processo e avaliação econômica
This work studied UV disinfection process performance and economic costs for facultative stabilization ponds effluent pos treated in constructed wetland and another effluents with similar characteristic. The experimental work consisted of batch disinfection tests using UV reactor, evaluating variables that may affect performance and process costs in order to
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 10/02/2012
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8. Estudo de viabilidade do sistema de ancoragem de uma unidade flutuante de produção e armazenamento \"FPSO\" acoplada a um sistema de completação seca \"TLWP\". / Mooring system feasibility study of a floating production and storage unit \"FPSO\" coupled to a dry tree system \"TLWP\".
The oil and gas production in Brazilian fields are commonly found in deep water and situated far away from the coast, reaching distances of more than 100 km as, for example, in the Campos Basin or Santos Basin. Due to the heavy oil and lack of pipeline infrastructure found in these fields, not only subsea equipments that must support high pressure but also l
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/03/2011
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9. AvaliaÃÃo econÃmica e ambiental dos sistemas de pesca utilizados nos MunicÃpios de Aracati e Icapuà -CE: subsÃdios para gestÃo / Economic evaluation and environmental systems fish used in the municipalities of Aracati and Icapuà - CE: support for management
Given the current global crisis in the fishing sector new approaches and strategies for fisheries management have arised, such as ecosystem management, co-management and marine protected areas. Artisanal fisheries, mostly in the Northeast Brazil, have an undeniable importance for fish production and rent. Within this framework of new management possibilities
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 24/01/2011
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10. Suíno como modelo experimental na pesquisa biomédica: valores fisiológicos normais = Swine in biomedical research: normal physiological values / Swine in biomedical research: normal physiological values
Background: The use of animals in biomedical research is of great importance. It is fundamental for the development and improvement of new practices and technologies. The selection of the species must take into consideration the practicality of handling and the suitability for the experiment, and it must have low operational costs. Swine are important as an
Publicado em: 2011
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11. Suino como modelo experimental na pesquisa biomédica: valores fisiológicos normais
Background: The use of animals in biomedical research is of great importance. It is fundamental for the development and improvement of new practices and technologies. The selection of the species must take into consideration the practicality of handling and the suitability for the experiment, and it must have low operational costs. Swine are important as an
Publicado em: 2011
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12. OS CUSTOS DE TRANSAÇÃO DA CADEIA PRODUTIVA DO BIODIESEL À BASE DE SOJA NO RIO GRANDE DO SUL: IMPACTOS SOBRE A GESTÃO DAS CADEIAS DE SUPRIMENTOS DAS USINAS INSTALADAS / THE TRANSACTION COSTS OF THE PRODUCTIVE CHAIN OF THE BIODIESEL BASED ON SOYBEAN IN RIO GRANDE DO SUL: IMPACTS ON THE MANAGEMENT OF SUPPLY CHAINS OF PLANTS INSTALLED
This research aims to identify and assess the main sources of transaction costs of the productive chain of soy biodiesel in Rio Grande do Sul and how they affect the management of supply chains of organizations. To do so, proceeded with semi-structured interviews and visits to four plants in operation in Rio Grande do Sul state. It is diagnosed that the main
Publicado em: 2010