Cleaner Technology
Mostrando 1-12 de 13 artigos, teses e dissertações.
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1. Life cycle analysis of HCNG light-duty vehicle demonstration project
ABSTRACT The demonstration is an effective initiative to bridge the gap between a premature technology and its large-scale commercialization. A systematic method of LCA was used to perform the well-to-wheel analysis of a CNG light-duty truck operated with 0%, 15%, and 30% blends of hydrogen with compressed natural gas fuel under the system boundary of “per
Matéria (Rio J.). Publicado em: 10/06/2019
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2. Comparative evaluation between mechanical and pneumatic cells for quartz flotation in the iron ore industry
Abstract Flotation plays a relevant role in the concentration of iron ores. Conventional flotation technology employing mechanical machines and columns and also circuits combining both types of cells have been utilized in the iron ore industry. The top size of particles in the flotation circuit feed is 150 µm and the slimes below 10 µm are removed as overf
REM, Int. Eng. J.. Publicado em: 2018-07
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3. Staphylococcus xylosus fermentation of pork fatty waste: raw material for biodiesel production
ABSTRACT The need for cleaner sources of energy has stirred research into utilising alternate fuel sources with favourable emission and sustainability such as biodiesel. However, there are technical constraints that hinder the widespread use of some of the low cost raw materials such as pork fatty wastes. Currently available technology permits the use of lip
Braz. J. Microbiol.. Publicado em: 2016-09
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4. 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
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5. 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
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6. 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
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7. 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
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8. 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
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9. A Produção mais Limpa como ferramenta em busca da sustentabilidade empresarial: um estudo de múltiplos casos em empresas do Estado do Rio Grande do Norte / Cleaner production as corporate sustainable tool: a multiple case studies within companies from Rio Grande do Norte state
This study aimed to assess the Cleaner Production CP as corporate sustainable tool, through the multiple case studies within companies from Rio Grande do Norte State. In order to achieve this goal a research methodology approach was set. The initial stage of the research methodology was based on a literature review on which it was observed that the CP can be
Publicado em: 2008
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10. Utilização das águas da fermentação do polvilho azedo na elaboração de uma nova bebida
Cassava starch sour wastewater is an effluent from cassava starch fermentation process. Fermentation wastewater was studied to a non alcoholic refreshing new beverage production, originally named #Frëshpa#. The principal barrier is mask the cassava starch sour characteristic flavor, conferred by lactic, propionic, butyric acids and other volatile compounds
Publicado em: 2008
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11. Tecnologia mais limpa aplicada ao tratamento de água em sistemas de resfriamento abertos com recirculação / Cleaner technology applied to water treatment in open recirculating cooling systems
Os estudos destinados à aplicação de uma tecnologia mais limpa ao tratamento de águas em sistemas de resfriamento abertos com recirculação resultaram no desenvolvimento de uma filosofia de tratamento baseada na busca de uma operação com ciclo de concentração ideal. Assim, por meio do controle do balanço material no sistema de resfriamento, seria a
Publicado em: 2007
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12. Impacto dos catalisadores automotivos no controle da qualidade do ar
Advanced industrialized nations have experienced severe pollution problems over the past forty years, caused mainly by carbon monoxide, hydrocarbons and nitrogen oxide emissions from automobiles. Catalyst technology has played a major part in minimizing these emissions as required by even more restrictive laws. The catalyst has been optimized over the years
Química Nova. Publicado em: 2003-03