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Itens para a visualização no momento 11-17 of 17
Análise da eficiência de extratos vegetais para aplicação como inibidores de corrosão
(Universidade Federal de Santa Maria, 2019-03-27)
Naturals inhibitors can be obtained through vegetable extracts or biomass sources, contributing to attenuate
the oxidative process, reducing the corrosion and being an alternative ecofriendly. Recent researches, ...
Recuperação seletiva de índio a partir da técnica de extração em fase sólida utilizando nanofibras com DEHPA
(Universidade Federal de Santa Maria, 2019-02-21)
The main objective of this work was to develop a nanomaterial able to selectively extract and
recover indium (In) from obsolete cell phone LCD screens. For this, Nylon 6 nanofibers were
produced and modified with ...
Síntese e aplicação do compósito geopolímero/Fe3O4 como adsorvente magnético para a remoção de contaminante orgânico em efluente líquido
(Universidade Federal de Santa Maria, 2019-07-31)
Accompanying population growth, industries, in addition to supplying the needs of the population, have become one of the main sources of environmental contamination, with the textile sector being the main responsible for ...
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 ...
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. ...
Preparação de ferro metálico suportado em polietileno para uso como catalisador flutuante na reação foto-fenton
(Universidade Federal de Santa Maria, 2019-03-25)
In the present paper, zero-valent iron particles were supported on low density polyethylene. The material produced was used as a buoyant catalyst in the removal of the Ponceau 4R azo dye from an aqueous solution via ...