Recovery Of Waste Materials
Mostrando 13-24 de 27 artigos, teses e dissertações.
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13. Potencial da extraÃÃo de Ãleo de peixe para produÃÃo de biodiesel / Potential extraction of fish oil for biodiesel production
Energy issues have been discussed intensively in the search for alternative energy sources, environmentally friendly and sustainable, since the prospect of depletion of fossil fuel reserves are eminent, thus reviving attention to alternative energy sources, among them, biofuels. Fish oil shows up as an alternative technology for the recovery of waste from pr
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 22/06/2012
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14. Análise de patentes de tecnologias relacionadas a resíduos de equipamentos elétricos e eletrônicos / Analysis of patents for technologies related to waste electrical and electronic equipment
The problem of solid waste has been touted as one of the most serious to date. The increasing scarcity of land for the establishment of new landfills, combined with the existing limitations for the recovery of non-renewable materials, low degree of implementation of new treatment alternatives and recycling, now represent a major challenge. Therefore, conside
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/02/2012
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15. Forms of sulfur in Brazilian Oxisols under no-tillage system / Formas de enxofre em Latossolos sob sistema plantio direto
Soil is a critical component of the global sulfur (S) cycle acting as source and a sink for various S species and mediating changes of S oxidation states. However, very little is known about the identities of these specific organic and inorganic S containing molecules, especially in Brazilian soils under no-tillage (NT) system. Thus, the objectives of this s
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/02/2012
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16. Desenvolvimento de argamassas contendo resíduos arenosos de mineração e estudo de suas propriedades visando sua utilização / Development of mortars containing mining waste sandy and studies of its properties aiming their use
A exploração de itabirito do minério de ferro para a indústria siderúrgica gera, entre outros, milhares de toneladas diárias de resíduo de arenoso. As características físicas e químicas homogêneas deste material, o faz atraente como matéria-prima para diversas indústrias, incluindo a fabricação de artefatos de cimento. Um aspecto importante pa
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 03/03/2011
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17. Determinação de Cu e Fe em Biodiesel por Espectrometria de Absorção Atômica com Atomização Eletrotérmica e Estudo do Efeito Catalítico destes Metais sobre a Estabilidade Oxidativa do Biodiesel / Determination of Cu and Fe in Biodiesel by Absorption Spectrometry Electrothermal atomic and Study of the Effect of Catalytic Metals on the Oxidative Stability of Biodiesel
The metals content in biodiesel is directly related with the raw material used and also with the utilized biodiesel production method. In this work, an evaluation of the main metals present in biodiesel samples from different sources was done. The qualitative analysis of the metal content was assessed using the Inductively Coupled Plasma Mass Spectrometry te
Publicado em: 2011
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18. Reuse of wasate lead in the manufacture of electrical automotive accumulators / Reaproveitamento de residuos de chumbo na fabricação de placas de acumuladores eletricos automotivos
Nas últimas décadas, a concorrência entre as indústrias vem ficando cada vez mais acirrada. Tem-se visto um movimento mundial no sentido de melhorar a competitividade, através de melhorias de qualidade nos produtos e serviços, redução de custos através da melhoria da produtividade, redução de quadro de pessoal e aumento da eficiência dos processo
Publicado em: 2010
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19. Reusing of fine quarries in paving: a technical and economical approach / Reaproveitamento de finos de pedreiras em pavimentação: uma abordagem técnica e econômica
The wastes generated by the quarry companies from civil construction represent an activity that has been outstanding because of the countless problems that appear with their stockpiling and maintenance. The great concern with those wastes is linked to the capacity to generate social and environmental effects that can harm the ambient through the appearance o
Publicado em: 2010
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20. Subsidies for training of landfill associated Municipalities in the Mountainous Region of Quilombos in Alagoas. / Subsídios para formação de Aterro Sanitário Consorciado em Municípios da Região Serrana dos Quilombos em Alagoas.
The Industrial Revolution has put in place some "dreams". The materials and equipment began to be produced quickly, through the employment of machinery, so different processes craft. The importance of this study is its contribution in the survey data for the municipal managers develops public policies, management of solid waste and its final destination, thr
Publicado em: 2009
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21. Effluent generation by the dairy industry: preventive attitudes and opportunities
Work aimed to identify the effluent is generating areas in a dairy company for purpose of changing concept pollution prevention. methodology consisted measuring volumes and collecting samples effluents production sectors. analysis was conducted by sector, order those which generated excessive amounts effluents. results show that dry products (powdered milk p
Brazilian Journal of Chemical Engineering. Publicado em: 2007-12
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22. TRATAMENTO DE REVESTIMENTOS GASTOS DE CUBA ELETROLÍTICA DA INDÚSTRIA DE ALUMÍNIO / TREATMENT OF SPENT POTLINER FROM ALUMINIUM INDUSTRY
Spent Potliner (SPL) is a residue from the primary aluminium production. It is indicated as the major environmental problem in the aluminum industry. SPL is formed by two fractions: Carbonaceous and refractory. According to Brazilian Standards NBR 10004, the SPL is listed as hazardous waste (K088) because it contains high levels of cyanides (complex). The pr
Publicado em: 2007
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23. Aditivação de pastas geopoliméricas com tetraborato de sódio e látex não iônico para cimentação de Poços de Petróleo
The development of activities in the oil and gas sector has been promoting the search for materials more adequate to oilwell cementing operation. In the state of Rio Grande do Norte, the cement sheath integrity tend to fail during steam injection operation which is necessary to increase oil recovery in reservoir with heavy oil. Geopolymer is a material that
Publicado em: 2007
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24. Reciclagem de fios e cabos elétricos. / Recycling of wires and eletrical cables.
The electro-electronics industry follows increasing the amount of scraps annually generated. For this reason it is necessary to recycle, so that it prevents the waste of raw materials and not renovable natural resources. The majority of the electro-electronic products do not receive any treatment after use and is disposed in municipal landfills together with
Publicado em: 2006