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Adsorção de herbicidas utilizando biochar obtido a partir de resíduos de madeira
(Universidade Federal de Santa Maria, 2022-02-26)
Residues of sawdust of the forest species Cedrela fissilis were modified, with a part of the
sample being only physically modified (BCC), while the other was also chemically activated
with zinc chloride (ZnCl2) as an ...
Extração assistida por ultrassom de β-glucanos de Lentinula edodes utilizando solvente eutético e água
(Universidade Federal de Santa Maria, 2022-03-30)
Shiitake is a mushroom rich in β-glucan type polysaccharides, long-chain molecules that have antioxidant properties that are beneficial to human health, in addition to having isolated physical properties of interest to the ...
Avaliação integrada do pré-tratamento do farelo de arroz desengordurado com solventes eutéticos e posterior hidrólise com água subcrítica
(Universidade Federal de Santa Maria, 2022-02-24)
In this dissertation, defatted rice bran was subjected to pre-treatments with deep
eutectic solvents aiming at delignification and enrichment in carbohydrate content. The
biomass was completely characterized. Four mixtures ...
Síntese de compósito de carbono a partir de resíduo de vitivinicultura para adsorção de contaminantes emergentes
(Universidade Federal de Santa Maria, 2022-02-25)
This work proposed the synthesis of a carbon composite (CC) chemically activated with ZnCl2. This CC was obtained from the pyrolysis of composted viticulture residue. The material was characterized by FT-IR (Fourier transform ...
Processamento sequencial de endocarpo de Butia capitata por meio de hidrólise com água subcrítica e liquefação hidrotérmica para obtenção de derivados líquidos e sólidos
(Universidade Federal de Santa Maria, 2022-09-30)
Butia capitata endocarp has potential to processing into wide variety of products. The
processing of this biomass by environmentally friendly technologies such as subcritical
water hydrolysis and hydrothermal liquefaction ...
Extração de óleo de soja utilizando solventes verdes: cinética, termodinâmica e transferência de massa
(Universidade Federal de Santa Maria, 2022-09-02)
This dissertation focuses on the kinetic, thermodynamic, and mass transfer study on applying
green solvents in soybean oil extraction. The first work discusses ethyl acetate and 1-butanol
solvents application. Temperature ...
Desenvolvimento e caracterização de um compósito HDL/biocarvão para adsorção de corante vermelho do Congo
(Universidade Federal de Santa Maria, 2022-08-29)
In this work the utilization of activated lychee peel biochar (ALPB) and Ca-Cr layered double
hydroxide for production of a composite was investigated. The CaCr/HDL-ALPB was
synthetized by coprecipitation and characterized ...
Esterificação catalítica de ácido acético e glicerol para a produção de aditivos de combustível
(Universidade Federal de Santa Maria, 2022-09-02)
Biodiesel production through the transesterification route is on the rise, as a result, glycerol, a low-cost by-product of biodiesel, has become more saturated in the international market. A potential solution to this ...
Recuperação seletiva de ouro de pinos de placa de circuitos impressos empregando nanofibras funcionalizadas com Cyanex 272
(Universidade Federal de Santa Maria, 2022-08-31)
Advances in technological development mean that the recovery of rare and strategic
metals from secondary sources has become essential, due to the high demand for these metals
in the production of electronic equipment. ...
Avaliação do processo sequencial de hidrólise e liquefação hidrotérmica do sabugo de milho
(Universidade Federal de Santa Maria, 2022-08-22)
The growing energy demand and limitations in the use of fossil fuels encourage the research of different renewable energy sources, such as agro-industrial residues. The corn crop in Brazil corresponds to 40% of the national ...