| Literature DB >> 28993221 |
Hossein Salehizadeh1, Ning Yan2, Ramin Farnood3.
Abstract
Natural polysaccharides, derived from biomass feedstocks, marine resources, and microorganisms, have been attracting considerable attention as benign and environmentally friendly substitutes for synthetic polymeric products. Besides many other applications, these biopolymers are rapidly emerging as viable alternatives to harmful synthetic flocculating agents for the removal of contaminants from water and wastewater. In recent years, a great deal of effort has been devoted to improve the production and performance of polysaccharide bio-based flocculants. In this review, current trends in preparation and chemical modification of polysaccharide bio-based flocculants and their flocculation performance are discussed. Aspects including mechanisms of flocculation, biosynthesis, classification, purification and characterization, chemical modification, the effect of physicochemical factors on flocculating activity, and recent applications of polysaccharide bio-based flocculants are summarized and presented.Entities:
Keywords: Bio-based; Bioflocculant; Biopolymer; Colloids; Flocculant; Flocculation; Grafting; Polymerization; Polysaccharide; Wastewater treatment
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Year: 2017 PMID： 28993221 DOI： 10.1016/j.biotechadv.2017.10.002
Source DB: PubMed Journal: Biotechnol Adv ISSN： 0734-9750 Impact factor: 14.227