Study of aqueous pectin solutions microfiltration process by ceramic membrane - doi: 10.4025/actascitechnol.v33i2.7000

Detalhes bibliográficos
Autor(a) principal: Silva, Vitor Renan da
Data de Publicação: 2011
Outros Autores: Scheer, Agnes de Paula
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.
id UEM-6_1906ca921d22b96db35627039929f55b
oai_identifier_str oai:periodicos.uem.br/ojs:article/7000
network_acronym_str UEM-6
network_name_str Acta scientiarum. Technology (Online)
repository_id_str
spelling 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