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Aplicação de ácidos orgânicos na recuperação de metais a partir de resíduos de baterias de íons de lítio e catalisadores automotivos
(Universidade Federal de Santa Maria, 2019-01-17)
In the last decades, hydrometallurgical processes have received considerable attention for the recovery of precious metals such as Platinum Group Metals (PGM), as well as recovery of metals with high added value from ...
Análise do potencial bioativo de vidros à base de borofosfato
(Universidade Federal de Santa Maria, 2019-02-18)
The use of phosphate and borate glasses on regeneration of bone tissue has been researched for the past years due to its potential of being reabsorbed by the organism during the recovery process of affected tissues. This ...
Produção de óleo e material adsorvente a partir da biomassa do fungo Nigrospora sp.
(Universidade Federal de Santa Maria, 2019-07-24)
This works was focused on the production of microbial oil from the biomass of the fungus Nigrospora sp. and the reuse of defated residual biomass as a biosorbent to recovery dye from aqueous solution. The study was divided ...
Construção de modelos matemáticos para processos fermentativos – avaliação de efeitos das condições de cultivo
(Universidade Federal de Santa Maria, 2019-10-04)
The mathematical modeling of fermentative processes is presented as a tool for improving and understanding of such processes, which has the main objective to predict predicting the dynamics of the process. Besides, the ...
Síntese de compósitos magnéticos ferrita/quitosana para adsorção de corantes e fármacos
(Universidade Federal de Santa Maria, 2019-03-08)
Water is a cornerstone to the flourishment of any existing life form and as such, need to be preserved. Working on development and improvement of technologies which promote an efficient effluent treatment, preventing ...
Preparação do adsorvente magnético geopolímero/ferro metálico para remoção de contaminante orgânico em efluente aquoso
(Universidade Federal de Santa Maria, 2019-07-31)
In this work the synthesis of a magnetic geopolymer from silica, metakaolin, iron zero-valent, soybean oil, sodium hydroxide and hydrogen peroxide was proposed. The magnetic geopolymer was characterized by X-ray diffraction, ...
Pré-tratamento de casca de arroz utilizando líquido iônico [C16MIM][Br]
(Universidade Federal de Santa Maria, 2019-08-05)
Rice husk, an agricultural residue, is a cellulose rich material which present potential to produce second generation ethanol, however, due its recalcitrant structure related to the presence of lignin and silica, a ...
Síntese e caracterização de biopolímeros funcionalizados com APTES (3–aminopropiltrietoxisilano) para a adsorção de corante amarelo crepúsculo
(Universidade Federal de Santa Maria, 2019-08-05)
The biopolymers chitin (CTN) and chitosan (CTS) were functionalized with APTES (3–aminopropyltriethoxysilane) in order to enhance its adsorption potential for sunset yellow dye (SYD). The functionalization was evaluated ...
Preparação de biochar a partir de matérias–primas alternativas e sua aplicação na adsorção de corantes
(Universidade Federal de Santa Maria, 2019-10-25)
Contamination of natural waters has been one of the great problems of modern society. The
textile and food sectors stands out especially due to the large amounts of effluents discharged
into the water bodies. Thus, ...
Metodologias não convencionais na extração de compostos bioativos de casca de bergamota
(Universidade Federal de Santa Maria, 2019-11-08)
Citrus fruits, produced in large quantities in Rio Grande do Sul, have been highlighted by the high
content of bioactive compounds they present. These components can be extracted from the residues
generated ...