Journal
CARBOHYDRATE POLYMERS
Volume 95, Issue 2, Pages 753-759Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2013.03.025
Keywords
Amylopectin; Biodegradable; Flocculation; Graft copolymer
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Funding
- Indian School of Mines, Dhanbad
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In recent years, wastewater treatment, especially for wastewaters which are not suitably recycled by conventional or normal biological processes, is getting more importance. Of late, natural biopolymer based flocculants are extensively used for wastewater treatment because of low cost, environment-friendly and easily availablility from reproducible farm and forest resources. This article introduces the development of a natural polymer based flocculant [amylopectin grafted with poly (acrylic acid) - AP-g-PAA] for treatment of synthetic effluent as well as mining industry wastewater. The graft copolymer based flocculants have been developed under optimum conditions and characterized using viscometry, C-13 NMR, SEM, TGA, rheological characteristics, determination of hydrodynamic radius and CHN analysis. The flocculation characteristics of grafted and ungrafted polysaccharide have been evaluated in synthetic effluents (as Fe-ore, kaolin, Mn ore suspensions) as well as in mining industry wastewater. (C) 2013 Elsevier Ltd. All rights reserved.
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