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Recent advances in extracellular biopolymer flocculants

Paper ID Volume ID Publish Year Pages File Format Full-Text
14290 1203 2014 17 PDF Available
Title
Recent advances in extracellular biopolymer flocculants
Abstract

Extracellular biopolymer flocculants (EBFs) are flocculating substances, consisting of polysaccharides, proteins, and lipids, which are secreted in the culture broth by many microorganisms. Some of EBFs have attracted much attention as biodegradable and nontoxic substitutes for conventional chemical flocculants. This paper reviews the recent development of EBFs. Aspects discussed include an introduction to conventional chemical flocculants and EBFs, isolation of novel bioflocculant-producing microorganisms, culture conditions, chemical structure and molecular weight of EBFs, the physico-chemical factors affecting flocculating activity, fermentation process design and recent and emerging application fields of EBFs.

Keywords
Bioflocculant; Bioflocculation; Biopolymers; Exopolysaccharides; Flocculant; Flocculation; Wastewater treatment
First Page Preview
Recent advances in extracellular biopolymer flocculants
Publisher
Database: Elsevier - ScienceDirect
Journal: Biotechnology Advances - Volume 32, Issue 8, December 2014, Pages 1506–1522
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering