Losses And Waste
Mostrando 1-12 de 34 artigos, teses e dissertações.
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1. Exergy and emergy: complementary tools for assessing the environmental sustainability use of biosolids generated in wastewater-treatment plant for energy-production
Taking advantage of the energy contained in the biosolids generated in a wastewater treatment plant (WWTP) is one of the processes of greatest interest due to the opportunity to obtain an energy resources from a waste. The aim of this research was to analyze the environmental sustainability use of biosolids generated in a wastewater-treatment plant for energ
Química Nova. Publicado em: 2022
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2. Riscos orçamentários na administração universitária: um estudo de caso no setor público
A administração pública brasileira vive um cenário de crises e incertezas. Diante disso, torna-se fundamental conhecer os possíveis riscos que uma universidade pública corre, suas consequências para o alcance dos seus objetivos institucionais e para o cumprimento de sua função social, além de focar em uma melhor aplicação dos recursos e assim alc
Avaliação (Campinas). Publicado em: 09/12/2019
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3. Energy Potential of Animal Waste in the State of Paraná (Brazil)
Abstract Animal biomass is a source of energy commonly discarded without or with low utilization, but its availability draws attention to its reuse [1]. The utilization can be carried out in different ways, varying in terms of generation time and efficiency. The use of biodigestion requires a relatively small area compared to landfills or natural composting,
Braz. arch. biol. technol.. Publicado em: 25/11/2019
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4. Halogen Determination in Polymeric Waste of Electrical and Electronic Equipment: Overcoming Limitations in Sample Preparation
Sample preparation of polymers for halogen determination requires special attention because they are difficult to bring into solution and due to the risk of analyte losses when using acid digestion. A method using microwave-induced combustion (MIC) was optimized for accurate determination of halogens in polymeric parts obtained in waste of electrical and ele
J. Braz. Chem. Soc.. Publicado em: 24/10/2019
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5. Crude glycerin in co-composting with laying hen manure reduces N losses
ABSTRACT: The composting of laying hen manure is an efficient way of treating waste and producing an organic fertilizer with excellent characteristics; however, the high N losses reduce its concentration in the resulting fertilizer. Associating this residue with crude glycerin (CG) promotes a better C:N ratio and contributes to higher N retention during comp
Sci. agric. (Piracicaba, Braz.). Publicado em: 2018-09
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6. Chemical composition and fermentative parameters of heart of palm waste produced from Alexander Palm ensiled with chemical additives
ABSTRACT The objective of this study was to evaluate the chemical composition and the fermentative parameters of heart of palm waste produced from Alexander Palm, ensiled with chemical additives. Treatments consisted of silage of the sheath with or without calcium oxide. In the silage without calcium oxide, we evaluated the control silage (without additive)
R. Bras. Zootec.. Publicado em: 2017-06
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7. COMPOSTING TIME REDUCTION OF AGRO-INDUSTRIAL WASTES
ABSTRACT The agro-industrialization of animal products has led to a significant waste generation, which has been stabilized by composting process in specialized plants. Waste stabilization time on composting depends on the handling used. 12 treatments were performed, three frequency turnings combined with two environmental conditions (with and without covera
Eng. Agríc.. Publicado em: 2016-12
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8. Behavior in simulated soil of recycled expanded polystyrene/waste cotton composites
Composites consisting of waste cotton yarn (CF) from the textile industry and postconsumer expanded polystyrene (EPS) was followed during 90 days of exposure in simulated soil. The mechanical properties, morphologies and chemical natures of the composites were determined before and after exposure in simulated soil. The composites were made using a single-scr
Mat. Res.. Publicado em: 11/10/2013
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9. Análise da influência de variáveis operacionais de um sistema de trigeração sobre o desempenho termodinâmico e a distribuição das utilidades / Analysis of operational variables in a trigeneration system and their influence over thermodynamic performance and distribution of utilities
In this work a trigeneration system, simultaneous production of power, heat and cooling using only one energy source, was analyzed, aiming at a better energetic efficiency of the system, showing the influence of some operating variables of the process on the utilities generated and the efficiency of the overall system. In this study the influence of the comp
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 20/04/2012
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10. 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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11. Contribuição ao estudo de perdas no varejo supermercadista: avaliação da quebra operacional e proposição de arranjo institucional para redução do desperdício de alimentos descartados comercialmente / Contribution to the study of losses in retail supermarket: evaluation of the operational break and propose of a institutional arrangement to reduce the waste of commercially disposed food
A presente pesquisa tem como finalidade analisar a ocorrência, a forma e os motivos do desperdício de alimentos no varejo supermercadista, analisando um procedimento das rotinas varejistas chamado de quebra operacional. Nesse sentido, as perdas, resultado direto das quebras, será apresentada sob uma perspectiva tripla, gerando problemas de natureza financ
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 14/10/2011
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12. DESEMPENHO EM DINAMÔMETRO E EMISSÕES RESIDUAIS DE UM MOTOR DE TRATOR AGRÍCOLA OPERANDO COM MISTURAS BINÁRIAS DE ÓLEO DIESEL B5 E BIODIESEL DE ÓLEO DE FRANGO / PERFORMANCE IN DYNAMOMETER AND EMISSIONS OF WASTE AN AGRICULTURAL TRACTOR ENGINES OPERATING WITH BINARY MIXTURES B5 DIESEL AND BIODIESEL OIL CHICKEN
Brazil, the third largest producer of biodiesel in the world, and also the third largest producer of chicken, may increase in some regions, the use of oil derived from birds, as an alternative to fossil fuels. In order to increase the range of options to reduce dependence on soybean oil for that purpose, and fostering environmental aspects, it is possible to
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/02/2011