Biological Filter
Mostrando 13-24 de 106 artigos, teses e dissertações.
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13. Desenvolvimento in vitro e imunolocalização de 5-metilcitosina em raízes tuberizadas e não-tuberizadas de Viguiera arenaria Baker (Asteraceae) / In vitro development and immunolocalization of 5-methylcytosine in tuberized and nontuberized roots of Viguiera arenaria Baker (Asteraceae)
Viguiera arenaria Baker is an herbaceous Asteraceae from Cerrado presenting alternate phyllotaxis, capitulum inflorescence and tuberized roots. Although phytochemical analyses have found substances with biological activities of therapeutic interest, little is known about the biology of the plant. In this study, we sought to contribute to the knowledge of asp
Publicado em: 2010
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14. Remoção biológica de nitrogênio utilizando biofiltro aerado submerso multi-estágio
Este trabalho fundamentou-se na concepção e operação de um sistema combinado anaeróbio-aeróbio, constituído de reator UASB e Biofiltro Aerado Submerso (BAS) Multiestágio (anaeróbio-aeróbio-anóxico). Os sistemas foram operados em escala piloto e aplicado ao tratamento de esgoto sanitário, sendo testados três meios-suporte, nomeadamente tampas e g
Publicado em: 2010
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15. Seleção de leveduras para bioconversão de D-xilose em xilitol / Yeast selection for bioconversion of D-xylose to xilitol
Microbial species, particularly yeast, are of great importance for the production of xylitol. The xylitol production involves complicated metabolic regulation, including the transport of D-xylose, production of key enzymes and cofactor regeneration. Thus, screening of microorganisms that consume D-xylose naturally becomes a viable and effective way to obtain
Publicado em: 2010
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16. Desempenho de um sistema de tratamento de efluentes de aquacultura : a recirculação como um alternativa sustentável
O intenso desenvolvimento da aquacultura tem sido acompanhado de um aumento nos impactos ambientais causados por esta atividade. As descargas de efluentes da aquacultura em ecossistemas aquáticos são uma fonte de deterioração da qualidade ambiental e podem causar eutrofização. O presente trabalho investigou e avaliou o desempenho de um sistema de trata
Publicado em: 2010
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17. Remoção de compostos orgânicos causadores de gosto e odor em águas de abastecimento em sistemas pós-filtros adsorvedores de carvão ativado granular. / Removal of taste and odor producing organic substances in water supply in post-filter granular activated carbon adsorber systems.
The main purpose of this research was to study the performance of granular activated carbon post filter adsorbers made of bituminous coal and vegetal coal (coconut), regarding, mainly, removal of 2-methylisoborneol and trans-1,10-dimethyltrans- 9-decalol. The experimental researches were conducted in the water treatment plant Alto da Boa Vista, using four pi
Publicado em: 2009
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18. Tratamento de esgoto sanitario em reator anaerobio preenchido por casca de coco verde (Cocos nucifera) combinado com filtro de areia / Wastewater treatment through an anaeroboc filter filled up with coco nuts (cocos nucifera) combined with sand filter
The development of efficient wastewater treatment systems, which are also adapted to the economic and structural conditions of a village, would be an option to decrease the lack of water problem since the effluent could be reused or discharged into receiving waters. Moreover, with wastewater system, health and environmental problems would be less frequent. F
Publicado em: 2009
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19. Microbial load of reusables trocars after gynecology laparoscopy / Carga microbiana de trocartes reprocessaveis apos laparoscopias ginecologicas
The transmission of hospital infections is related to survival of microorganisms on environmental surfaces and surgical instruments. In recent years, Brazil has been facing a scenario scattered on the validation of cleaning and sterilizing surgical instruments used in minimally invasive procedures performed primarily for video. For implantation of effective
Publicado em: 2009
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20. Redução de cromo hexavalente em filtro biológico de fluxo contínuo
O cromo hexavalente (Cr (VI)) é um metal pesado, altamente tóxico e carcinogênico para seres vivos. É amplamente utilizado em indústrias de diferentes segmentos tais como: siderúrgicas, metalúrgicas, indústrias têxteis, curtumes, usinas nucleares, de galvanoplastia e tintas. Devido à sua ampla aplicação, o cromo hexavalente é encontrado em altas
Publicado em: 2009
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21. Fontes de lipídios para juvenis de trairão (Hoplias lacerdae). / Sources of lipids for juvenile trairão (Hoplias lacerdae)
This study aimed to evaluate diets with different oil sources on juveniles of trairão (Hoplias lacerdae). Experimental design was completely randomized with five replications and four treatments (oils: canola, flaxseed, soybean and olive oils). Treatments were isonitrogenous (42% PB) and isocaloric (4569.29 kcal EB/kg), differing only in the source of oil.
Publicado em: 2009
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22. Analysis of the microbial load in the instruments used in orthopedic surgeries / Análise da carga microbiana nos instrumentos utilizados em cirurgias ortopédicas
The failure in orthopedic surgical procedures due to infection can lead to devastating consequences such as the loss of implanted prostheses. Hospital infection is an outcome with a multifactorial cause, in which the safe sterilization of the surgical instruments has an extremely important role. To date, it is not known what microbiological challenges the Ma
Publicado em: 2009
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23. Diversidade funcional: como incluir a variação intraespecífica e o efeito do fogo em comunidades vegetais do cerrado
Biological diversity may influence the structure and functioning of communities in several ways, for example, altering the species resource complementarity. However, traditional diversity measures (such as species richness or diversity indices as Shannon or Simpson) have being considered as rough biodiversity estimators. In that sense, several authors sugges
Publicado em: 2009
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24. Levels of protein and energy in diets for fingerlings of trairão Hoplias lacerdae / Níveis de proteína e energia em dietas para alevinos de trairão Hoplias lacerdae
Through the present research work, evaluating the levels of crude protein (CP) and gross energy (GE) for fingerlings of trairão (Hoplias lacerdae) was sought. The completely randomized design with four replicates in factorial scheme 4 x 3 were utilized, namely, four levels of crude protein (35; 39; 43 and 47%) and three levels of gross energy (4100; 4300 an
Publicado em: 2009