Oil Removal
Mostrando 1-12 de 146 artigos, teses e dissertações.
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1. Anti-Biofilm and Hemolytic Effects of Cymbopogon citratus (Dc) Stapf Essential Oil
Abstract Objective: To perform chemical analysis and to evaluate the anti-biofilm and hemolytic effect of the essential oil of Cymbopogon citratus. Material and Methods: Gaseous chromatography coupled to mass spectrometer was performed for chemical characterization of the essential oil. To verify the antimicrobial action, the Minimum Inhibitory Concentrati
Pesqui. Bras. Odontopediatria Clín. Integr.. Publicado em: 13/01/2020
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2. Pré-tratamento físico-químico e enzimático para efluente de abatedouro
RESUMO O efluente gerado em um abatedouro de aves, contendo gordura (quantificada pela análise de Óleos e Graxas - O&G) na concentração de 1.100 mg.L-1, foi submetido a dois pré-tratamentos para redução da concentração de material orgânico particulado: um tratamento físico-químico convencional (coagulação/floculação com cloreto férrico) ou u
Eng. Sanit. Ambient.. Publicado em: 25/11/2019
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3. Air drying of macauba fruits: maintaining oil quality for biodiesel production
ABSTRACT. Macauba fruits are oil-rich drupes with high moisture content at harvest. This feature can affect the chemical properties of the oil and increase the costs of biodiesel production. Therefore, it is necessary to adopt postharvest strategies to ensure oil quality. The aim of this work was to evaluate the effect of drying macauba fruit on the quality
Acta Sci., Agron.. Publicado em: 21/10/2019
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4. Optimum environment number for the national sunflower trials network
ABSTRACT. This work aimed to present the optimum environment number methodology and propose the optimization of the National Sunflower Trials Network, by means of the environments exclusion that do not provide loss of the environmental variability already established. Grain and oil yield data of 16 genotypes evaluated at 16 environments of the National Sunfl
Acta Sci., Agron.. Publicado em: 21/10/2019
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5. SYNTHESIS OF MORPHOLINE-BASED IONIC LIQUIDS FOR EXTRACTIVE DESULFURIZATION OF DIESEL FUEL
Abstract Extractive desulfurization with ionic liquids has attracted significant attention from a growing number of scientists due to the current environmental restrictions on fuel. Protic ionic liquids (PILs) were synthesized via equimolar neutralization of morpholine and formic-based compounds. The obtained PILs were characterized by Fourier transform infr
Braz. J. Chem. Eng.. Publicado em: 30/09/2019
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6. Avaliação de parâmetros operacionais de um sistema de membranas para tratamento de efluentes oleosos
RESUMO O objetivo deste trabalho foi discutir os principais parâmetros de controle de um sistema de membranas de microfiltração para remoção de óleo de efluentes com base em ensaios experimentais. Os ensaios utilizaram efluentes sintéticos com diâmetros de gotas de óleo entre 4 e 8 µm. As membranas usadas foram do tipo fibra oca com módulo submers
Eng. Sanit. Ambient.. Publicado em: 26/08/2019
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7. Efeito do óleo essencial do Croton nepetifolius Baill na penetração cervical em ovelhas mestiças de Dorper e Santa Inês
RESUMO A fim de se avaliar o uso do óleo essencial de Croton nepetifolius Baill (OECn) na penetrabilidade cervical em ovelhas mestiças, 40 ovelhas foram distribuídas ao acaso em quatro grupos (n=10): controle, misoprostol, OECn50 e OECn100 (50 e 100µg do OECn, respectivamente). Após a sincronização do estro, utilizando CIDR e eCG (200UI), a profundida
Arq. Bras. Med. Vet. Zootec.. Publicado em: 06/06/2019
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8. POST-HARVEST QUALITY OF OZONATED MACAUBA FRUITS FOR BIODIESEL PRODUCTION
RESUMO A presença de micro-organismo, especialmente durante o armazenamento, pode levar à deterioração rápida dos frutos de macaúba (Acrocomia aculeata) e reduzir a qualidade do óleo extraído para a produção de biodiesel. Uma alternativa para garantir a qualidade do óleo é o uso de gás ozônio, um poderoso agente oxidante que possui alto poder a
Rev. Caatinga. Publicado em: 09/05/2019
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9. Evaluation of the efficacy of filling material removal and re-filling after different retreatment procedures
Abstract This study analyzed the influence of different retreatment protocols on amount of remaining filling material and amount of new sealer after endodontic retreatment. Forty mandibular molars with curved mesial roots were prepared with ProTaper Universal system, and filled with AH Plus sealer mixed with 0.1% rhodamine B and gutta-percha. After 7 days, t
Braz. oral res.. Publicado em: 13/09/2018
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10. Evaluación reológica de fluidos de perforación base agua con nanosílice
ABSTRACT Generally, drilling fluids may be defined as fluids with a composition that can assist the generation and removal of cuttings from the borehole to the surface. They are classified according to their base as water based mud (WBM), oil based mud (OBM) or gas. Polymers, densifiers, brines, surfactants, among others are the primary components of drillin
Matéria (Rio J.). Publicado em: 19/07/2018
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11. CORK MEMBRANE FOR EFFICIENT OIL AND WATER SEPARATION
Cork is a renewable, biocompatible, environmentally friendly and abundant biological material with microscale cellular structure. Fabrication of filtration membranes for the separation of oil and water by utilizing such natural materials to replace nonnatural membranes is a green method. A cork membrane with a water contact angle greater than 150° and an oi
Quím. Nova. Publicado em: 2018-07
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12. Green polyurethane synthesis by emulsion technique: a magnetic composite for oil spill removal
Abstract After the consolidation of the Brazilian biodiesel industry, issues related to the final destination of the glycerin, the by-product from the biodiesel industrial process, drawing the attention of several researchers. There are several uses to this byproduct. Among them, the obtaining of polymers, such as polyurethane (PU), are very encouraged since
Polímeros. Publicado em: 2017-12