Cleaner Technologies
Mostrando 1-12 de 12 artigos, teses e dissertações.
-
1. HOT AEROSOL FIRE EXTINGUISHING AGENTS AND THE ASSOCIATED TECHNOLOGIES: A REVIEW
Abstract Since the phase out of Halon extinguishers in the 1980s, hot aerosol fire suppression technology has gained much attention. Unlike traditional inert gas, foam, water mist and Halon fire suppression agents, hot aerosol fire extinguishing agents do not need to be driven out by pressurized gases and can extinguish class A, B, C, D and K fires at 30 to
Braz. J. Chem. Eng.. Publicado em: 2015-09
-
2. Characterization of xylanase from Streptomyces sp. FA1 and its application for bamboo hydrolysis
Native cellulose can be disintegrated into substructures with nano-size dimension through electronspinning. Typically, the most common source material available for cellulose nano-fiber production is wood. More attempts are employed to find new suitable resources to produce nano-cellulose at present. Bamboo boasts the abundant resource in China and possesses
Matéria (Rio J.). Publicado em: 2014-12
-
3. Lean diesel technology and human health: a case study in six Brazilian metropolitan regions
OBJECTIVE: Due to their toxicity, diesel emissions have been submitted to progressively more restrictive regulations in developed countries. However, in Brazil, the implementation of the Cleaner Diesel Technologies policy (Euro IV standards for vehicles produced in 2009 and low-sulfur diesel with 50 ppm of sulfur) was postponed until 2012 without a comprehen
Clinics. Publicado em: 2012
-
4. As Novas ruralidades e as recentes alternativas da agricultura familiar no município de Itapiranga (SC)
The new rurality is creating job opportunities and income in family farming in the municipality of Itapiranga/SC, which must be analyzed. Have been numerous initiatives in this direction, such as recreation sites, agro-ecological gardening, farming, forestry, fish and small agro-industries derived from cane sugar (molasses, brown sugar and "Schmier"), rural
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2012
-
5. Projetos de mecanismo de desenvolvimento limpo (MDL) em aterros sanitários: contribuições das tecnologias ambientais para o desenvolvimento sustentável.
The Kyoto Protocol is regarded as one of the most ambitious global political events on the environment. Through this global environmental governance landmark major industrial nations pledged to cut their emissions of greenhouse gases (GHG) in the atmosphere. To facilitate compliance with emission targets for GHG, three flexibility mechanisms were created. Am
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 05/07/2011
-
6. DESENVOLVIMENTO DE UM PROCESSO CONTÍNUO PARA PRODUÇÃO DE BIODIESEL A BAIXAS TEMPERATURAS. / DEVELOPMENT OF A CONTINUOUS PROCESS FOR PRODUCING BIODIESEL AT LOW TEMPERATURES.
Biodiesel has emerged worldwide as a promising alternative to oil-derived mineral fuels. It is biodegradable, renewable, obey to the carbon cycle and can be defined as fatty acid monoalquyl esters derived from renewable sources, such as vegetable oils and animal fats. It can be produced from a transesterification reaction, in which there is the transformatio
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/03/2011
-
7. Fatores incidentes no uso de tecnologias capazes de reduzir as emissões de ônibus e caminhões no Brasil
Buses and trucks are vehicles that emit large quantities of pollutants that are harmful to humans and the environment. Despite all the environmental movement and the emergence of technologies capable of reducing emissions of these vehicles, like filters, fuels and engines, changes are still poorly understood. Identifying the factors that relate to the use of
Publicado em: 2008
-
8. Environmental management system on mineral water production / Sistema de gestão ambiental na produção de água mineral
Its more and more evident the subject of the shortage of water, worsened by the accelerated urbanization, growth of the population, increase of the demand and of the costs of its treatment, factors that are also tied up to the increase of the consumption of mineral waters, whose chemical composition or physical-chemistries characteristics do with that are co
Publicado em: 2008
-
9. Evaluation of mechanical and rheological properties of butadiene-styrene(SBR) compounds filled with elastomeric wastes from useless tires / Avaliação das propriedades mecânicas e reológicas de composições de butadieno-estireno (SBR) com resíduos elastoméricos de pneus inservíveis
Currently, the great appeal about the ambiental questions has forced much more companies and industries around the world to search ecological alternatives to their activities. However, the environmental sustainability it is not a task only for the factories. The consumption society must be able to choice products obtained by cleaner technologies and easily d
Publicado em: 2008
-
10. Desenvolvimento de metodologia para identificação de oportunidades de inovação tecnológica em tratamento de superfícies de jóias folheadas. / Development of a methodology for identyfing technological innovation opportunities in plated jewellery surface treatment.
Technological innovation has been greatly discussed worldwide for its central role in economy. One important factor to innovation is the identification of technological opportunities. Information on customer requirements is particularly important on identifying new opportunities for it leads to a much safer way to new product launch success. In this context,
Publicado em: 2006
-
11. Industrial pollution prevention: opportunities assessment, benefits and barriers analysis / Prevenção à poluição industrial: identificação de oportunidades, análise dos benefícios e barreiras
Pollution prevention is an environmental management approach that prioritizes the source reduction of wastes as a way to preserve natural resources and reduce material, water and energy losses, conversely to the traditional approach, based on end of pipe technologies. In spite of the environmental and economic benefits, many barriers can impede the widesprea
Publicado em: 2005
-
12. Novas relações sistema produtivo/meio ambiente.
Esta dissertação consiste em uma revisão crítica da literatura sobre a prevenção da poluição na fonte geradora. Teve como objetivos: compor uma fonte adicional de informação sobre o tema, em língua portuguesa, uma vez que as disponíveis são muito limitadas, e discutir as implicações da incorporação ou não da prevenção, em função de seus
Publicado em: 2001