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

Authors

  • Vitor Renan da Silva Universidade Federal do Paraná
  • Agnes de Paula Scheer Universidade Federal do Paraná

DOI:

https://doi.org/10.4025/actascitechnol.v33i2.7000

Keywords:

crossflow microfiltration, pectin, fouling, resistances in series model

Abstract

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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Author Biographies

Vitor Renan da Silva, Universidade Federal do Paraná

Programa de Pós-Graduação em Tecnologia de Alimentos da Universidade Federal do Paraná

Agnes de Paula Scheer, Universidade Federal do Paraná

Departamento de Engenharia Quí­mica da Universidade Federal do Paraná

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Published

2011-02-23

How to Cite

Silva, V. R. da, & Scheer, A. de P. (2011). <b>Study of aqueous pectin solutions microfiltration process by ceramic membrane</b> - doi: 10.4025/actascitechnol.v33i2.7000. Acta Scientiarum. Technology, 33(2), 215–220. https://doi.org/10.4025/actascitechnol.v33i2.7000

Issue

Vol. 33 No. 2 (2011)

Section

Food Technology

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