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Membrane and Desalination Technologies - TCE Moodle Website

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CONTENTS<br />

6<br />

Treatment of Food Industry Foods <strong>and</strong> Wastes<br />

by <strong>Membrane</strong> Filtration<br />

Lawrence K. Wang, Nazih K. Shammas, Munir Cheryan,<br />

Yu-Ming Zheng, <strong>and</strong> Shuai-Wen Zou<br />

INTRODUCTION<br />

MEMBRANE PROCESSES, MODULES, AND EQUIPMENT<br />

OPERATIONAL PROBLEMS AND ENGINEERING SOLUTIONS<br />

MEMBRANE FILTRATION SYSTEM<br />

APPLICATIONS OF MEMBRANE TECHNOLOGY IN<br />

THE FOOD INDUSTRY<br />

NONFOOD APPLICATIONS OF MEMBRANE TECHNOLOGY IN THE FOOD INDUSTRY<br />

NOMENCLATURE<br />

REFERENCES<br />

Abstract <strong>Membrane</strong> separation processes are based on the ability of semipermeable membranes<br />

of the appropriate physical <strong>and</strong> chemical nature to discriminate between molecules<br />

primarily on the basis of size <strong>and</strong> to a certain extent, on shape <strong>and</strong> chemical composition. A<br />

membrane’s role is to act as a selective barrier, enriching certain components in a feedstream,<br />

<strong>and</strong> depleting the others. One of the chief attractions of membrane technology is the<br />

low energy requirement compared to other food processing technologies. Since membrane<br />

processes are nonthermal <strong>and</strong> do not involve a change of phases, they are energy-efficient <strong>and</strong><br />

do not change the nature of the foods during their process operation. This chapter presents the<br />

membrane process theory <strong>and</strong> case histories of various production applications in the food<br />

industry. Operational problems <strong>and</strong> recommended engineering solutions for membrane<br />

process optimization are presented <strong>and</strong> discussed.<br />

Key Words <strong>Membrane</strong> filtration food industry food processing energy conservation<br />

waste minimization recycle waste treatment<br />

From: H<strong>and</strong>book of Environmental Engineering, Volume 13: <strong>Membrane</strong> <strong>and</strong> <strong>Desalination</strong> <strong>Technologies</strong><br />

Edited by: L.K. Wang et al., DOI: 10.1007/978-1-59745-278-6_6 # Springer ScienceþBusiness Media, LLC 2011<br />

237

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