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Aplicação da separação eletrostática na reciclagem de resíduos poliméricos e baterias de íon de lítio
(Universidade Federal de Santa Maria, 2016-03-23)
The increasing industrial development results in a large consumption of products and materials. Among them, stand out the polymeric materials, due to their versatility and low cost, and electrical and electronic equipment ...
Resíduos poliméricos: quantificação, caracterização, lavagem e tratamento do efluente gerado no processo
(Universidade Federal de Santa Maria, 2016-04-05)
With the industrialization, the demographic growth and the consumption patterns of society there is an increase in the generation of solid waste, among which include polymeric waste. Thereby, the recycling emerges as a ...
Avaliação da aplicação de CO2 supercrítico na presença de cosolventes para a reciclagem de placas de circuito impresso de celulares
(Universidade Federal de Santa Maria, 2015-03-06)
Technological development and intensive marketing support the growth of demand for electrical and electronic equipment (EEE), which have as a primary component printed circuit boards (PCBs). These devices have become ...
Comparação de técnicas para concentração de índio de telas de LCD e aplicação de eletro-obtenção
(Universidade Federal de Santa Maria, 2015-12-18)
Because of the constant introduction of new technologies to market growth of electronic waste generation has gained importance on the world stage, among these residues are cell phones. Deliver useful life increasingly ...
Utilização de CO2 supercrítico e ácidos orgânicos na lixiviação de índio presente em telas de lcd de telefones celulares
(Universidade Federal de Santa Maria, 2015-07-15)
The growth in the generation of electrical and electronic equipment waste (WEEE) has won global importance and cell phones are highlighted between these wastes because of short life cycle and its amounts of hazardous ...
Análise da viabilidade técnica e econômica da utilização de biogás em motores de ignição por compressão para geração de energia elétrica
(Universidade Federal de Santa Maria, 2019-05-21)
Growth in energy demand and security of energy supply have become a concern in recent decades. The high cost of fossil fuels and the need to reduce the emission of greenhouse gases have made renewable energy sources ...
Avaliação e aplicação de modelos termodinâmicos no equilíbrio de fases em uma ampla faixa de pressão em sistemas envolvendo água, álcool e hidrocarbonetos
(Universidade Federal de Santa Maria, 2018-11-29)
The role of thermodynamics models in describing several industrial processes for chemical engineers is essential. Many of those processes involve, mainly, phase equilibrium. This is the case of separation processes equipment, ...
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, ...
Efeitos do transbordamento da produtividade agrícola brasileira
(Universidade Federal de Santa Maria, 2019-03-26)
Agriculture is essential for the country's economic development. Brazil stands out in world agricultural production. All surplus produced is destined for exports. In this way, this research aimed to determine the agricultural ...
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 ...