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Itens para a visualização no momento 11-20 of 29
Obtenção de extratos de folhas de oliveira para aplicação como agente antimicrobiano em embalagens biodegradáveis ativas
(Universidade Federal de Santa Maria, 2021-03-26)
This work had as objective to obtain extracts of olive leaves (OLE) through the technique of extraction assisted by microwaves for later application of the extracts obtained in the elaboration of active biodegradable films. ...
Avaliação da adsorção de indio (III) através de redes neuronais artificiais e modelos difusivos de transferência de massa
(Universidade Federal de Santa Maria, 2021-06-11)
Technological development has increased the consumption of indium in the last decade and is currently classified as a critical material due to its scarcity. Its main application is related to the production of liquid crystal ...
Esterificação do ácido oleico e acetato de metila com zeólita WO3/USY: efeitos da impregnação do catalisador e modelagem cinética
(Universidade Federal de Santa Maria, 2020-01-20)
This work proposes the use of USY zeolite activated with tungsten oxide in the esterification of oleic acid with methyl acetate. Tunguistic acid was synthesized trought the acid treatment of sodium tungstate and was used ...
Desenvolvimento de materiais a base de quitina para aplicação na adsorção de corantes
(Universidade Federal de Santa Maria, 2021-02-24)
The environmental problems due to the accelerated industrialization of the last decades have caused in society the need to develop new technologies for the treatment of industrial waste. The textile industry stands out due ...
Construção de um sistema em fluxo contínuo para a extração de cromo de resíduos de couro curtido assistida por ultrassom
(Universidade Federal de Santa Maria, 2021-02-11)
In this work, a continuous flow extraction system was developed, characterized and evaluated for the removal of Cr from tanned leather residues, using EDTA as extractor. The system was developed mostly using the 3D printing ...
Obtenção de carvão ativado a partir de lodo industrial para a remoção de contaminantes e recuperação de bioálcoois via adsorção
(Universidade Federal de Santa Maria, 2021-12-07)
In this study, biological sludge, which is an abundant and problematic solid waste from the wastewater treatment plant (WTP) of a beverage industry, was used to prepare a high quality activated carbon (ACBS). This was ...
Valorização de resíduos da serragem de madeira de eucalipto a partir da aplicação da pirólise
(Universidade Federal de Santa Maria, 2022-02-22)
The present work focused on adding value to the sawdust of eucalypt wood, which is
a lignocellulosic waste. This was accomplished by applying the pyrolysis technique,
converting sawdust into biochar. The solid products ...
Modelos computacionais avançados aplicados na adsorção multicomponente de fármacos
(Universidade Federal de Santa Maria, 2022-02-23)
Pharmaceutical compounds are fundamental to the preservation of human and animal health. However, its high and continuous consumption, associated with its incorrect disposal and the inefficient treatments of water and ...
Produção de enzimas hidrolíticas por fermentação em estado sólido e secagem por spray drying
(Universidade Federal de Santa Maria, 2020-02-19)
The entomopathogenic fungus Metarhizium anisopliae is used for the biological control of agricultural pests due to the secretion of a complex of hydrolytic enzymes such as chitinase and β-1,3-glucanase. In recent years, ...
Produção de biodiesel em escala piloto via hidroesterificação enzimática
(Universidade Federal de Santa Maria, 2021-02-19)
The report “State of the Climate” released by the World Meteorological Organization at 25th Climate Changes Conference highlights that 2019 ends an alarming decade regarding the historical increase in the average temperature ...