Ceramic Filters
Mostrando 1-9 de 9 artigos, teses e dissertações.
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1. Development of a ceramic membrane for emulsion water-diesel treatment
Abstract The purpose of this study was the development of a low-cost ceramic tubular membrane, using inexpensive materials, namely natural clay, and graphite as a porogenic agent. Such a low-cost membrane can be used as filters or porous supports for the preparation of multilayer ceramic membranes. Extrusion was used as a shape-forming method for this purpos
Cerâmica. Publicado em: 2022
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2. Ancoragem da prata em substratos cerâmicos para tratamento de água de consumo
Resumo A fabricação de vasos cerâmicos impregnados com prata possibilita o acesso à água potável de uma forma barata e com fabricação relativamente simples. Este estudo teve como objetivo promover a modificação superficial de filtros cerâmicos utilizando APTES e EDTA como agentes ancoradores para melhorar a impregnação da prata e a eficiência e
Cerâmica. Publicado em: 14/11/2019
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3. APLICAÇÃO DE ÓXIDOS DE FERRO NANOESTRUTURADOS COMO ADSORVENTES E FOTOCATALISADORES NA REMOÇÃO DE POLUENTES DE ÁGUAS RESIDUAIS
New techniques for treating wastewater, particularly the removal or degradation of organic pollutants and heavy metals, among other pollutants, have been extensively studied. The use of nanostructured iron oxides as adsorbent and photocatalyst for the removal of these contaminants has proved a promising approach, not only because of their high treatment effi
Quím. Nova. Publicado em: 2015-03
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4. Produção e caracterização de espumas cerâmicas obtidas a partir de lodo de anodização de alumínio
Ceramic foams were produced from a sludge generated in the aluminum anodizing process by using an industrial polyurethane foam (replication method) with open cell sizes of 10 ± 5 ppi (porosity = 97%) which were impregnated with suspensions containing 50-61 wt.% alumina, 1 wt.% citric acid, 6 wt.% bentonite and fired at 1600 ºC for 2 h. The aluminum anodizi
Química Nova. Publicado em: 2012
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5. Caracterização de cerâmicas porosas de alumina reforçada com zircônia produzidas pelo método da réplica
Porous ceramics have many applications: thermal insulation, catalytic support, materials to fire protection, filters, and others. There are many techniques to production of ceramic filters. One technique to obtain ceramic filters is the replication method. This method consists in the impregnation of polymeric foam with ceramic slurry followed by a heating tr
Publicado em: 2008
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6. Produção de forragem verde em sistema hidropônico usando esgoto tratado
In the urban areas of the cities a larger problem of destiny of effluents of the treatment stations is verified due to the junction of the sewages in great volumes. This way the hidroponic cultive becomes important, for your intensive characteristic, as alternative of reuse. This work presents as objective the improvement of the relation hidric-nutritious of
Publicado em: 2008
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7. Study of porosity and identification in A356 alloy. / Estudo sobre a incidência das porosidades e sua identificação em uma liga de alumínio A356.
The objective of this work is to study the type of defect identified during the pressure tightness test of aluminum parts and to establish a relationship between porosity level of an A356 aluminum alloy and the production processes, hydrogen level, feeding system, and directional solidification. Different nitrogen blowing times, inversion of the mould patter
Publicado em: 2007
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8. Desenvolvimento de bloqueador ultravioleta a partir de material vitroceramico obtido de residuo hospitalar tratado por plasma / Development of an ultraviolet blocker from glass-ceramic material obtained by plasma treatment of hospital waste
O tratamento por plasma térmico de resíduos hospitalares gera como subproduto um material vitrocerâmico com alto poder de bloquear radiação ultravioleta e infravermelho próximo. A composição deste material apresenta como elementos majoritários cálcio, silício, ferro, alumínio e oxigênio. O objetivo deste trabalho é compreender a cinética de de
Publicado em: 2005
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9. Ceramic foams porous microstructure characterization by X-ray microtomography
Knowledge of the porous structure of amorphous materials is of fundamental importance in calculating geometrical parameters such as total porosity, pore size distribution and physical parameters relating to fluid flow inside void space. The present work deals with the measurement of the microstructural parameters of porous ceramic filters. Microtomographic m
Materials Research. Publicado em: 2004-12