Buscar
Itens para a visualização no momento 51-60 of 85
Reciclagem de cabos coaxiais e lâmpadas de LED aplicando operações de processamento mecânico
(Universidade Federal de Santa Maria, 2019-08-02)
Technological development, although linked to quality of life improvement, results in the increase of waste electrical and electronical equipment, which cables and LED bulbs are part of. Thus, new approaches towards recycling ...
Síntese e caracterização do compósito SnFe2O4/polipirrol para utilização na degradação do corante tartrazina via processo foto-fenton
(Universidade Federal de Santa Maria, 2019-07-22)
One of the major concerns with the environment and aquatic life is related to the discharge of
effluents containing synthetic dyes. Among the most used synthetic dyes is tartrazine, a lemon
yellow azo dye, used in the ...
i-gamma® Projeto de produção de ácido succínico a partir de quirera de arroz
(Universidade Federal de Santa Maria, 2018-07-05)
Desenvolvimento de prato perfurado sem downcomer com geometria fractal: avaliação fluidodinâmica e ambiental
(Universidade Federal de Santa Maria, 2019-12-16)
Distillation columns are classified as tray column, packing or mixed (hybrid)
depending of tower internal type placed inside. Tray internals are classified in with or
without downcomer and the simplest models of trays ...
Avaliação de modificações pós-síntese em zeólita ZSM-5 comercial aplicada na esterificação de ácido oleico com acetato de metila
(Universidade Federal de Santa Maria, 2019-11-25)
Zeolites are considered the most important catalysts in industry due to their unique properties. Among these materials, ZSM-5 highlights because of its stability and versatility, presenting a wide range of applications. ...
Pirólise de resíduos cervejeiros para a produção de adsorventes
(Universidade Federal de Santa Maria, 2020-02-13)
Contamination of water by organic compounds can cause damage to the environment and to humans. Adsorption is a promising process for removing these pollutants. In addition, the adsorbents used can be regenerated. Agricultural ...
Prospecção tecnológica em base de patentes: análise de tendências de tecnologias que empregam a radiação solar para produção de energia
(Universidade Federal de Santa Maria, 2020-02-28)
The increased concern for the environment, coupled with the high cost of fossil fuels makes humanity look for new means of generating energy, different from traditional methods using non-renewable sources. The way found ...
Adsorção de níquel (II) usando leito fixo de carvão ativado em condições subcríticas
(Universidade Federal de Santa Maria, 2020-02-27)
In the present work, the use of subcritical conditions in the nickel adsorption process on activated carbon in a fixed bed was investigated in the aqueous medium, with variation of the values for different pressure (from ...
Potencial de hidróxidos duplos lamelares de Zn-Al e Mg-Fe para adsorção de 2-nitrofenol
(Universidade Federal de Santa Maria, 2020-02-28)
Two Zn-Al and Mg-Fe layered double hydroxides (LDH) were synthesized by coprecipitation method in order to increase the adsorption potential of 2-nitrophenol (2-NP). Both adsorbents were characterized by the techniques of ...
Produção de enzimas hidrolíticas por Beauveria bassiana em fermentação submersa assistida por ultrassom
(Universidade Federal de Santa Maria, 2020-02-19)
The ability of the fungus Beauveria bassiana to produce hydrolytic enzymes in nutritious media has been known for many years, as well as the role of these enzymes in the fungal infectious process. This work defines a ...