Clarification Of Water
Mostrando 1-12 de 30 artigos, teses e dissertações.
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1. Estudo comparativo do tingimento de malha PES/CO com água tratada com resíduo de clarificação de óleo vegetal, na forma natural e calcinada
RESUMO A indústria têxtil utiliza um grande volume de água, o que torna necessário encontrar opções mais sustentáveis para o seu uso, como a reutilização em novos tingimentos. O uso de um resíduo industrial sólido, como adsorvente, poderá ser uma alternativa para tratar o efluente têxtil. Este estudo teve como objetivo testar a viabilidade do re
Matéria (Rio J.). Publicado em: 16/09/2019
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2. Enhanced settling of mature fine tailings (MFT) by paramagnetic nanofluids based on nanoiron
ABSTRACT The extraction of bitumen from sand by utilizing hot water processes results in the production of a slurry waste which is stored in so called “tailings ponds”. Within these ponds, while fast settling sand particles segregate from the slurry in relatively short time, the fines fraction accumulates in the center of the pond and then settles, becom
Matéria (Rio J.). Publicado em: 19/07/2018
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3. EVALUATING ARSENIC AND MANGANESE REMOVAL FROM WATER BY CHLORINE OXIDATION FOLLOWED BY CLARIFICATION
AbstractThis paper investigates the simultaneous removal of arsenic [As(V) or As(III)] and manganese [Mn(II)] from natural waters of low and high turbidity by clarification (with polyaluminum chloride and aluminum sulfate as primary coagulants) associated or not with chlorine pre-oxidation. The results showed that the clarification process exhibited low Mn(I
Braz. J. Chem. Eng.. Publicado em: 2015-06
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4. Avaliação da remoção de fármacos e de desreguladores endócrinos em águas de abastecimento por clarificação em escala de bancada
In this work, the efficiency of clarification treatment (coagulation, flocculation and sedimentation) with polyaluminum chloride (PAC) and aluminum sulfate (SA) as coagulants was evaluated in the removal of 7 microcontaminants (diclofenac - DCF, sulfamethoxazole - SMX, ethinylestradiol - EE2, bisphenol-A - BPA, estradiol - E2, estrone - E1 and estriol - E3)
Quím. Nova. Publicado em: 2014-06
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5. Improvement of the flocculation process in water treatment by using moringa oleifera seeds extract
Water scarcity encourages researchers to keep working on natural coagulant agents such as Moringa oleifera seed extract, that could be used even in developing countries. With this scope, this investigation is focused on the optimization of certain parameters affecting the use of this coagulant product in the clarification of real surface water. Acidic pH lev
Braz. J. Chem. Eng.. Publicado em: 2012-09
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6. Influência da taxa de aplicação superficial e da concentração de ar na eficiência de clarificação de água de abastecimento em unidades de flotação por ar dissolvido / Influence of surface application fee and concentration of air in efficiency of clarification of water supply in units dissolved air flotation
Os objetivos deste trabalho foram verificar a influência das taxas de aplicação superficial das zonas de separação e de contato e da concentração de micro bolhas de ar na eficiência da remoção de partículas em unidades de flotação aplicadas ao tratamento de água para abastecimento público e, caracterizar a estrutura de escoamento no interior d
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 22/09/2011
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7. Tannase production by Penicillium atramentosum KM under SSF and its applications in wine clarification and tea cream solubilization
Tannin acyl hydrolase commonly known as tannase is an industrially important enzyme having a wide range of applications, so there is always a scope for novel tannase with better characteristics. A newly isolated tannase-yielding fungal strain identified as Penicillium atramentosum KM was used for tannase production under solid-state fermentation (SSF) using
Brazilian Journal of Microbiology. Publicado em: 2011-03
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8. Remoção de sulfeto de hidrogênio, ferro e manganês de águas de abastecimento através dos processos de dessorção gasosa, nanofiltração e oxidação com permanganato de potássio
Many regions in Brazil have problems associated with the water quality of their supplies, which bring problems to the production of safe drinking water that is distributed in communities. Generally, consumers judge the drinking water safety through the use of their organoleptic senses. The conventional processes used in water treatment are not effective to r
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2010
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9. Flocculation of fine fluorite particles with Corynebacterium xerosis and commercial long chain polymers
This work aimed to study, comparatively, the flocculation of fluorite particles with Corynebacterium xerosis cells and three commercial long chain polymers. Best flocculation results were obtained with cells of C. xerosis and with an anionic polyacrylamide. Both were effective in solids removal and water clarification, although flocculation with C. xerosis c
Publicado em: 2010
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10. Estudo experimental da microfiltração tangencial com membrana cerâmica aplicada na clarificação da vinhaça / Experimental study of cross flow microfiltration with ceramic membrane applied in clarifying the vinasse
This present work studied the process of cross flow microfiltration using tubular ceramic applied in the vinasse clarification from sugar cane, analyzing fluid dynamic features of process and the types of pore blocking applied to math models. In this research was used alfa-alumina (alfa-AL IND.2O IND. 3) ceramic membrane with pore size of 1.2 müm and 0.8 m�
Publicado em: 2010
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11. Influência da velocidade de entrada na zona de contato na eficiência de clarificação de unidades retangulares de flotação por ar dissolvido aplicado no tratamento de águas para abastecimento / Influence of the velocity in the contact zone entrance on the clarification efficiency of rectangular dissolved air flotation units applied to water treatment to supply
A flotação por ar dissolvido (FAD) é reconhecida atualmente como técnica eficiente para a etapa de clarificação em sistemas de tratamento de água para abastecimento. Diversos estudos vêm sendo realizados para aprimoramento dessa técnica e das características físicas das unidades FAD. Seguindo essa tendência, o presente trabalho teve como objetivo
Publicado em: 2010
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12. Removal of microcystins in water from eutrophic reservoir involving technical of clarification, pre-oxidation with potassium permanangate, adsorption with powdered activated carbon and post-chlorination / Remoção de microcistina em águas provenientes de reservatório eutrofizado associando técnicas de clarificação, pré-oxidação com permanganato de potássio, adsorção em carvão ativado e pós-cloração
The present work had as objective to evaluate the removal of three different concentrations of extracellular microcystins in different combinations of water treatment for supplying, in bench scale, that had as basic sequence the clarification associated or not with the processes of pre-oxidation with KMNO IND.4, adsorption on PAC and post-chlorination. The r
Publicado em: 2009