Study of aqueous pectin solutions microfiltration process by ceramic membrane - doi: 10.4025/actascitechnol.v33i2.7000
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Acta scientiarum. Technology (Online) |
Texto Completo: | http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/7000 |
Resumo: | In this work, pressure effects, separation efficiency and resistive effects of microfiltration of pectin solution were investigated. Stabilized permeate flux values were obtained for solutions concentrations of 1.0 and 2.0 g L-1 under different pressure conditions of 0.4, 0.8, 1.2 and 1.6 bar. A full factorial design with two levels was applied to evaluate the effects of the pressure, temperature and concentration in the process resistances. The experiments were performed in a crossflow microfiltration system with multitubular membrane with nominal pore size of 0.44 µm and feed flow of 1.0 m³ h-1. Pectin retention coefficients and process resistances were obtained following the resistances in series model. It was observed that the highest values of permeate flux for concentration solution of 1.0 and 2.0 g L-1 were at pressure of 1.2 and 0.8 bar, respectively, however, the lowest obtained permeate flux were at 1.6 bar. The permeate flux and the polarization resistance increased, respectively, with increasing temperature and concentration. The results showed that the lowest value of the retention coefficient was 93.4% and the most significant resistance was due to fouling. The highest value of resistance was 4.13 x 109 m² kg-1 at temperature of 30°C and concentration of 2.0 g L-1. |
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Study of aqueous pectin solutions microfiltration process by ceramic membrane - doi: 10.4025/actascitechnol.v33i2.7000Estudo do processamento por microfiltração de soluções aquosas de pectina em membranas cerâmicas - doi: 10.4025/actascitechnol.v33i2.7000crossflow microfiltrationpectinfoulingresistances in series modelmicrofiltração tangencialpectinafoulingmodelo das resistências em sérieIn this work, pressure effects, separation efficiency and resistive effects of microfiltration of pectin solution were investigated. Stabilized permeate flux values were obtained for solutions concentrations of 1.0 and 2.0 g L-1 under different pressure conditions of 0.4, 0.8, 1.2 and 1.6 bar. A full factorial design with two levels was applied to evaluate the effects of the pressure, temperature and concentration in the process resistances. The experiments were performed in a crossflow microfiltration system with multitubular membrane with nominal pore size of 0.44 µm and feed flow of 1.0 m³ h-1. Pectin retention coefficients and process resistances were obtained following the resistances in series model. It was observed that the highest values of permeate flux for concentration solution of 1.0 and 2.0 g L-1 were at pressure of 1.2 and 0.8 bar, respectively, however, the lowest obtained permeate flux were at 1.6 bar. The permeate flux and the polarization resistance increased, respectively, with increasing temperature and concentration. The results showed that the lowest value of the retention coefficient was 93.4% and the most significant resistance was due to fouling. The highest value of resistance was 4.13 x 109 m² kg-1 at temperature of 30°C and concentration of 2.0 g L-1.Neste trabalho foram avaliados os efeitos da pressão, a eficiência de separação e os efeitos resistivos na microfiltração de soluções aquosas de pectina. O valor do fluxo de permeado estabilizado foi determinado para soluções com concentrações de 1,0 e 2,0 g L-1 submetidas a pressões de 0,4; 0,8; 1,2 e 1,6 bar. Um delineamento fatorial completo com dois níveis foi realizado para se avaliar os efeitos da pressão, temperatura e concentração nas resistências do processo. Os ensaios foram conduzidos em um sistema de microfiltração tangencial com membranas multitubulares com tamanho nominal de poro de 0,44 µm e vazão de alimentação de 1,0 m³ h-1. Determinaram-se os coeficientes de retenção de pectina e as resistências seguindo o modelo das resistências em série. Os maiores fluxos de permeados para soluções com 1,0 e 2,0 g L-1 foram observados, respectivamente, à pressão de 1,2 e 0,8 bar, enquanto os menores fluxos foram observados a 1,6 bar. O fluxo de permeado e a resistência por polarização elevam-se com o aumento da temperatura e da concentração, respectivamente. O coeficiente de retenção mínimo observado foi de 93,4 % e a resistência mais significativa foi a do fouling. A maior resistência foi de 4,13 x 109 m² kg-1 para temperatura de 30°C e concentração de 2,0 g L-1.Universidade Estadual De Maringá2011-02-23info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/700010.4025/actascitechnol.v33i2.7000Acta Scientiarum. Technology; Vol 33 No 2 (2011); 215-220Acta Scientiarum. Technology; v. 33 n. 2 (2011); 215-2201806-25631807-8664reponame:Acta scientiarum. Technology (Online)instname:Universidade Estadual de Maringá (UEM)instacron:UEMporhttp://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/7000/7000Silva, Vitor Renan daScheer, Agnes de Paulainfo:eu-repo/semantics/openAccess2024-05-17T13:03:07Zoai:periodicos.uem.br/ojs:article/7000Revistahttps://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/indexPUBhttps://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/oai||actatech@uem.br1807-86641806-2563opendoar:2024-05-17T13:03:07Acta scientiarum. Technology (Online) - Universidade Estadual de Maringá (UEM)false |
dc.title.none.fl_str_mv |
Study of aqueous pectin solutions microfiltration process by ceramic membrane - doi: 10.4025/actascitechnol.v33i2.7000 Estudo do processamento por microfiltração de soluções aquosas de pectina em membranas cerâmicas - doi: 10.4025/actascitechnol.v33i2.7000 |
title |
Study of aqueous pectin solutions microfiltration process by ceramic membrane - doi: 10.4025/actascitechnol.v33i2.7000 |
spellingShingle |
Study of aqueous pectin solutions microfiltration process by ceramic membrane - doi: 10.4025/actascitechnol.v33i2.7000 Silva, Vitor Renan da crossflow microfiltration pectin fouling resistances in series model microfiltração tangencial pectina fouling modelo das resistências em série |
title_short |
Study of aqueous pectin solutions microfiltration process by ceramic membrane - doi: 10.4025/actascitechnol.v33i2.7000 |
title_full |
Study of aqueous pectin solutions microfiltration process by ceramic membrane - doi: 10.4025/actascitechnol.v33i2.7000 |
title_fullStr |
Study of aqueous pectin solutions microfiltration process by ceramic membrane - doi: 10.4025/actascitechnol.v33i2.7000 |
title_full_unstemmed |
Study of aqueous pectin solutions microfiltration process by ceramic membrane - doi: 10.4025/actascitechnol.v33i2.7000 |
title_sort |
Study of aqueous pectin solutions microfiltration process by ceramic membrane - doi: 10.4025/actascitechnol.v33i2.7000 |
author |
Silva, Vitor Renan da |
author_facet |
Silva, Vitor Renan da Scheer, Agnes de Paula |
author_role |
author |
author2 |
Scheer, Agnes de Paula |
author2_role |
author |
dc.contributor.author.fl_str_mv |
Silva, Vitor Renan da Scheer, Agnes de Paula |
dc.subject.por.fl_str_mv |
crossflow microfiltration pectin fouling resistances in series model microfiltração tangencial pectina fouling modelo das resistências em série |
topic |
crossflow microfiltration pectin fouling resistances in series model microfiltração tangencial pectina fouling modelo das resistências em série |
description |
In this work, pressure effects, separation efficiency and resistive effects of microfiltration of pectin solution were investigated. Stabilized permeate flux values were obtained for solutions concentrations of 1.0 and 2.0 g L-1 under different pressure conditions of 0.4, 0.8, 1.2 and 1.6 bar. A full factorial design with two levels was applied to evaluate the effects of the pressure, temperature and concentration in the process resistances. The experiments were performed in a crossflow microfiltration system with multitubular membrane with nominal pore size of 0.44 µm and feed flow of 1.0 m³ h-1. Pectin retention coefficients and process resistances were obtained following the resistances in series model. It was observed that the highest values of permeate flux for concentration solution of 1.0 and 2.0 g L-1 were at pressure of 1.2 and 0.8 bar, respectively, however, the lowest obtained permeate flux were at 1.6 bar. The permeate flux and the polarization resistance increased, respectively, with increasing temperature and concentration. The results showed that the lowest value of the retention coefficient was 93.4% and the most significant resistance was due to fouling. The highest value of resistance was 4.13 x 109 m² kg-1 at temperature of 30°C and concentration of 2.0 g L-1. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-02-23 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/7000 10.4025/actascitechnol.v33i2.7000 |
url |
http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/7000 |
identifier_str_mv |
10.4025/actascitechnol.v33i2.7000 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/7000/7000 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Estadual De Maringá |
publisher.none.fl_str_mv |
Universidade Estadual De Maringá |
dc.source.none.fl_str_mv |
Acta Scientiarum. Technology; Vol 33 No 2 (2011); 215-220 Acta Scientiarum. Technology; v. 33 n. 2 (2011); 215-220 1806-2563 1807-8664 reponame:Acta scientiarum. Technology (Online) instname:Universidade Estadual de Maringá (UEM) instacron:UEM |
instname_str |
Universidade Estadual de Maringá (UEM) |
instacron_str |
UEM |
institution |
UEM |
reponame_str |
Acta scientiarum. Technology (Online) |
collection |
Acta scientiarum. Technology (Online) |
repository.name.fl_str_mv |
Acta scientiarum. Technology (Online) - Universidade Estadual de Maringá (UEM) |
repository.mail.fl_str_mv |
||actatech@uem.br |
_version_ |
1799315333699338240 |