Textile Effluents
Mostrando 13-24 de 61 artigos, teses e dissertações.
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13. Decolorization of azo dyes (Direct Blue 151 and Direct Red 31) by moderately alkaliphilic bacterial consortium
Abstract Removal of synthetic dyes is one of the main challenges before releasing the wastes discharged by textile industries. Biodegradation of azo dyes by alkaliphilic bacterial consortium is one of the environmental-friendly methods used for the removal of dyes from textile effluents. Hence, this study presents isolation of a bacterial consortium from soi
Braz. J. Microbiol.. Publicado em: 2016-03
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14. MICROEMULSÕES: COMPONENTES, CARACTERÍSTICAS, POTENCIALIDADES EM QUÍMICA DE ALIMENTOS E OUTRAS APLICAÇÕES
Microemulsions (MEs) are thermodynamically stable systems consisting of nanosized droplets dispersed in a solvent continuous medium (known as pseudo-phase), which is immiscible with the dispersed phase. These systems consist of water, a hydrophobic solvent called "oil," an amphiphile and often, a co-surfactant that is normally a medium chain alcohol. A large
Quím. Nova. Publicado em: 2015-11
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15. Application of Carbon Composite Adsorbents Prepared from Coffee Waste and Clay for the Removal of Reactive Dyes from Aqueous Solutions
A novel carbon composite was prepared from a mixture of coffee waste and clay with inorganic:organic ratio of 1.3 (CC-1.3). The mixture was pyrolysed at 700 °C. Considering the application of this adsorbent for removal of anionic dyes, the CC-1.3 was treated with a 6 mol L-1 HCl for 24 h to obtain ACC-1.3. Fourier transform infrared (FTIR), N2 adsorption/de
J. Braz. Chem. Soc.. Publicado em: 2015-05
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16. Use of calcined layered double hydroxides for the removal of color and organic matter from textile effluents: kinetic, equilibrium and recycling studies
This paper presents data for the synthesis and characterization of layer double hydroxides (LDH) and their use for color and chemical oxygen demand (COD) removal from effluents generated by a textile industry. Adsorption studies with raw and biologically treated (activated sludge) textile effluent showed that the pseudo-second order model best fitted the exp
Braz. J. Chem. Eng.. Publicado em: 2014-03
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17. Tratamento de corantes reativos em solução aquosa utilizando lodo de esgoto sanitário como biossorvente em reatores contínuos. / Treatment of reactive dyes in aqueous solution using sewage sludge as biosorbent in continuous reactors.
Conventional treatments of textile industry effluents usually produce significant amounts of recalcitrant subproducts. Among the new treatment technologies, adsorption appears as an alternative method. In this study, the efficiency of sewage sludge in the removal of reactive dye yellow GR, blue GN and red RB was evaluated to pH, total alkalinity, volatile fa
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/08/2012
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18. Levantamento de linhagens do acervo de culturas tropicais para tratamento biológico de efluentes de indústria têxtil / Determination of strains from the collection of tropical culture collection for biological treatment of effluents from textile industry
O processo de destilação molecular reativa, no qual ocorre o acoplamento de destilação molecular e reação química simultaneamente, pode ser qualificado como um processo híbrido e também como um processo intensificado, dada a configuração do equipamento e as condições operacionais que viabilizam a implementação de alto vácuo (<50 Pa), permitin
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 06/05/2012
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19. Processo UV/H2O2 como pós-tratamento para remoção de cor e polimento final em efluentes têxteis
Several problems are involved the treatment plants of textile effluents, mainly the low efficiency of color removal. This paper presents an alternative of post-treatment by UV/H2O2 process, for color removal in biologically treated textile effluents. The tests were performed in a photochemical reactor and samples were taken at different times to perform anal
Quím. Nova. Publicado em: 2012
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20. Descoloração de corantes industriais e efluentes têxteis simulados por peroxidase de nabo (Brassica campestre)
The removal of important textile dyes by turnip peroxidase (TNP) was evaluated. The textile effluents besides the residual dyes contain also chemical auxiliaries such as salts, dispersing and wetting agents. The effect of these was evaluated in the removal of the dyes reactive blue 21 and reactive blue 19 by TNP in synthetic effluents. A decrease of the effi
Química Nova. Publicado em: 2012
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21. Adsorção de corantes têxteis utilizando biossorventes alternativos
The textile effluents when launched into water bodies reduce the penetration of sun light harming the photosynthesis processes. Besides this, the dyes have been pointed out as potentially toxic substances. In general, the removal processes are based on physicochemical systems followed by biological treatment. The sorption process, besides presenting high rem
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2012
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22. Uso de silicatos modificados na remoção de corantes de efluentes aquosos
This thesis describes the preparation, characterization and application of new inorganic/organic hybrid materials, obtained from organo-functionalization of lamellar surface of derivatives of keniaíta, magadeíta and RUB-18 silicates. The products obtained were treated with silylating agents by different methods. The materials were characterized by FTIR for
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2012
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23. Otimização do processo de mineralização de compostos orgânicos utilizando sistemas eletro-Fenton e fotoeletro Fenton por irradiação UV artificial e solar
OPTIMIZATION OF THE MINERALIZATION PROCESS OF ORGANIC COMPOUNDS USING ELECTRO-FENTON AND PHOTO-FENTON SYSTEMS BY ARTIFICIAL AND SOLAR UV IRRADIATION Electrochemical advanced oxidation processes based on the Fentons reaction, such as electro-Fenton (EF) and photoelectro-Fenton (PEF) using artificial and solar UV irradiation were employed in the treatment of e
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/09/2011
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24. Aplicação da tecnologia eletroquímica como alternativa para a remoção de corante têxteis em efluentes sintéticos e reais utilizando anodos de platina e diamante
Neste trabalho, a tecnologia eletroquímica foi utilizada no tratamento de efluentes sintéticos, contendo Vermelho de Metila (VM) e Azul de Novacron (AN), através da oxidação anódica utilizando ânodos de Ti recoberto com platina (Ti/Pt). Após isso, a fim de verificar a aplicabilidade do tratamento eletroquímico, amostras reais de efluentes têxteis u
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 14/07/2011