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Microfiltration of kiwifruit juice and fouling mechanism using fly-ash-based ceramic membranes

Paper ID Volume ID Publish Year Pages File Format Full-Text
18844 43035 2015 7 PDF Available
Title
Microfiltration of kiwifruit juice and fouling mechanism using fly-ash-based ceramic membranes
Abstract

•We prepared low-cost ceramic membranes from spherical fly ash particles.•The low-cost membrane was used in microfiltration of kiwifruit juice.•The membrane showed low resistance and satisfied clarification of juice.•The membrane fouling mechanism was investigated.

Three different low-cost inorganic membranes prepared from fly-ash precursor have been used for the clarification of centrifuged kiwifruit juice. The prepared membranes have been characterized by SEM analysis, average pore diameter and porosity determinations, and pure water permeation experiments. Dead-end microfiltration experiments have been performed on centrifuged kiwifruit juice to evaluate the effect of pore diameters (dm) and porosities (ɛ) on the permeation characteristics (permeate flux and juice quality). A membrane of pore diameter 1.25 μm proved to be optimal for the clarification of kiwifruit juice. Different membrane pore blocking models have been used to analyze the observed decline in permeate flux. Analysis of the fouling mechanism results has revealed that the three membranes were controlled by different filtration mechanisms.

Keywords
Kiwifruit juice; Low-cost inorganic membrane; Microfiltration; Pore blocking model
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Publisher
Database: Elsevier - ScienceDirect
Journal: Food and Bioproducts Processing - Volume 96, October 2015, Pages 278–284
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us