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Critical flux of gum arabic: Implications for fouling and fractionation performance of membranes

Paper ID Volume ID Publish Year Pages File Format Full-Text
19041 43042 2016 7 PDF Available
Title
Critical flux of gum arabic: Implications for fouling and fractionation performance of membranes
Abstract

•The critical flux of 2 wt% gum arabic measured using 3 pore sizes of polysulfone membrane.•Values were 27, 10 and 22 LMH for 0.1, 0.5 and 0.8 μm PS membranes, respectively.•Critical flux increased with increasing cross flow velocity.•Performance of membranes assessed both above and below the critical flux.

A flux-stepping method was used to determine the critical flux of 2 wt% gum arabic using flat sheet polysulfone membranes. These were found to be 27 L m−2 h−1, 10 L m−2 h−1 and 22 L m−2 h−1 for 0.1, 0.5 and 0.8 μm polysulfone membranes, respectively. Increasing the cross flow velocity was found to raise the critical flux, although the effect diminished at higher velocities. These values were then used to assess the fouling and the fractionation performance of the three membranes above and below their critical fluxes.

Keywords
Microfiltration; Gum arabic; Critical flux; Fouling; Membrane fractionation; Flux-stepping
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Publisher
Database: Elsevier - ScienceDirect
Journal: Food and Bioproducts Processing - Volume 97, January 2016, Pages 41–47
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
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Price was $35.95
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