Abstract—This research was carried out to determine the predominant fouling mechanism during the pretreatment of an aqueous pectin solution by cross-flow microfiltration with membrane with nominal size of 0.44 µm, at different values of transmembrane pressure, temperature, and pectin concentration. To evaluate the predominant resistive mechanism was used series resistance and permeate flux model analysis. The rejection coefficient for pectin varied from 93.4 to 97.9%. The maximum flux observed was 238.69 ± 6.48 kg m
-2 h
-1 at transmembrane pressure of 0.12 MPa, temperature of 50 °C and initial pectin of 1.0 g kg
-1. The dominant restrictive mechanism observed was the cake layer formation, for all assay evaluated.
Index Terms—Pectin, microfiltration, permeate flux, fouling.
F. A. Gimenes is with the Chemical Engineering Department, Maringá State University, Maringá, Brazil (e-mail: marcelino@ deq.uem.br).
V. R. Silva, F. Hamerski, and A. P. Scheer are with the Chemical Engineering Department, Federal University of Paraná, Curitiba, Brazil (e-mail: vrenan@ ufpr.br, fabianehamerski@ ufpr.br, agnesps@ ufpr.br).
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Cite:Marcelino L. Gimenes, Vitor R. Silva, Fabiane Hamerski, and Agnes P. Scheer, "Pretreatment of Aqueous Pectin Solution by Cross-Flow Microfiltration: Study on Fouling Mechanism," International Journal of Chemical Engineering and Applications vol. 5, no. 3 pp. 281-286, 2014.
