Validação diagnóstica para a detecção de Cryptosporidium spp. em bovinos

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Verification of applicability of the polyurethane adhesive based on castor oil in the manufacture of glued laminated bamboo

The current concern with the environment promotes the development of new technologies for production with use of alternative materials, from renewable resources, and changes in production processes, having as main objective the reduction of environmental impact. One of the alternatives for cleaner production is the use of castor oil derivatives instead of non-renewable sources, such as adhesives based on PVA (polyvinyl acetate), applied in the manufacturing process of glued laminated bamboo. Based on the versatility of the bamboo laminate and the castor oil, and from the perspective of sustainability, this study aims to contribute to the application of new materials and processes, used in the manufacturing industry, by proposing the use of the polyurethane adhesive based on castor oil for glued laminated bamboo manufacturing, which can later be used in the manufacture of several products. To verify the applicability of the polyurethane adhesive based on castor oil in the glued laminated bamboo manufacture, mechanical tests of traction and shearing of the glue sheet were performed in specimens of the said material, and the results were compared with the Cascorez 2590 and Waterbond adhesives. The results showed that the polyurethane adhesive based on castor oil, in the traction test, has superior performance than the Waterbond adhesive and slightly below than the Cascorez 2590 adhesive, but in the shear test, the polyurethane adhesive based on castor oil presented a slightly inferior performance than the other two adhesives used in the comparison.

A sewage sludge co-composting process using respirometric monitoring method in hermetic rotary reactor

This paper has the objective of monitoring the biological activity of composting process of sewage sludge, sugarcane bagasse and ground coffee in a hermetic rotary reactor using the respirometric method in laboratory scale, in order to obtain parameters and system design for large scale projects. Another particularity of this study is the use of a hermetic reactor with gas purging cycles. Purging was performed when the percentage of oxygen reached less than 5%, thus eliminating the gaseous mixture (with elevated CO2 ratio) and the introduction of environmental air with around 21% of O2, successively until the compost was stabilized. The average purge intervals obtained were 29 h and 2 min with reactor rotation frequency of 15 min. The time of the compost stabilization was optimized in 60% if compared to the 90 days in the traditional method. The results obtained can be used to design the process in industrial scale using a simple O2 gas analyzer.

Operational and environmental assessment on the use of charcoal in iron ore sinter production

A study was carried out into the use of charcoal as a supplementary fuel in the iron-ore sintering process. The primary fuel was coke breeze and anthracite with 0, 10, 25, 50 and 100% replacement of the energy input with charcoal to produce sinter. This was achieved by considering the carbon content of each fuel and its corresponding participation on fuel blending, in order to have the same carbon input in each test run. An extensive analysis of the environmental impact was carried out regarding the atmospheric pollutants characterization (dust, sulphur dioxide, nitrogen oxides, carbon monoxide, carbon dioxide, methane, total hydrocarbons, and dioxins and furans). Experimental results indicate that fuel blending where 50% of the heat input was provided by charcoal may be comparable with those using 100% coke, under normal sintering conditions, and may result in a 50% reduction on greenhouse gas emission. It was also observed that while dust, methane and hydrocarbons emissions increased, the total dioxins and furans, expressed as polychlorinated dibenzodioxins/furans, decreased approximately 50% when compared with operation with 100% coke.

Identificação dos benefícios e dificuldades da produção mais limpa em empresas industriais do estado de São Paulo

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Processo de produção de composto orgânico derivado de resíduos industriais com aplicação no cultivo de alface

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Utilização do gesso para fabricação de artefatos alternativos, no contexto de produção mais limpa

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

O problema de corte de estoque com uso e venda de retalhos: uma proposta de otimização para a sustentabilidade ambiental

Pós-graduação em Engenharia de Produção - FEB

Importância da segregação de materiais no gerenciamento de lixo hospitalar na área de hemoterapia

In recent years the environment and its effects on human life has been the subject of research. The scientific society organized to manage the problem of large amount of waste generated, discuss the degradation of the environment and point out possible solutions. The scarcity of references in the specific hemotherapy motivated this research. This study is an observational descriptive in order to raise the issue of hospital waste specific area of hemotherapy, presenting its latest ratings on Brazilian law also highlights the proposed Waste Management Program Health Service (PGRSS) Blood Center of Botucatu (HB) highlighting the importance of segregation of noble material in the generation of other therapeutic products using the technique of cleaner production (CP). The observational analysis of the reports shows a 20-fold increase in the amount of waste generated from 1993 to 2005, while the increase of manpower was 2.5 times. The increase in generation was due RSS hemocenter deployment of automated techniques, increased demand and improved sorting of waste. The technique implanted P + L in 2001 began using units of fresh frozen plasma, previously discarded after 12 months of storage, for the composition of new therapeutics for topical use, called bio dressing. In 10 years of implementation of this new technique, therapeutic products generated 535 patients benefited from micro-Botucatu.

Avaliação histológica e funcional do enxerto de neotraqueia de coelho desenvolvido por bioengenharia

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Ideologia sobre a mulher em pride and prejudice: uma análise dialógica do filme e do livro

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)