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2005•Journal of Nanjing University of TechnologyRequires access

Preparation of modified chitosan and its properties of flocculating

Lin JingWen

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Abstract

The modified chitosan (CAM) was made by graft co-polymerization of chitosan and acrylamide using the ammonium persulfate as initiator and the mass ratio of chitosan and acrylamide is 1∶2,reaction temperature is (30℃).The results of flocculating experiments of CAM on kaolin suspension and dyeing waste water indicated that CAM has a typical character of cation high moleculer flocculation and better flocculating ability than chitosan . The removal rate of COD_(Cr) of dyeing waste water enhanced by 30% in flocculant's adding quantity reduced by 80%.

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What this paper is about

The modified chitosan (CAM) was made by graft co-polymerization of chitosan and acrylamide using the ammonium persulfate as initiator and the mass ratio of chitosan and acrylamide is 1∶2,reaction temperature is (30℃).The results of flocculating experiments of CAM on kaolin suspension and dyeing waste water indicated that CAM has a typical character of cation high moleculer flocculation and better flocculating ability than chitosan . The removal rate of COD_(Cr) of dyeing waste water enhanced by 30% in flocculant's adding quantity reduced by 80%.

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Available abstract

The modified chitosan (CAM) was made by graft co-polymerization of chitosan and acrylamide using the ammonium persulfate as initiator and the mass ratio of chitosan and acrylamide is 1∶2,reaction temperature is (30℃).The results of flocculating experiments of CAM on kaolin suspension and dyeing waste water indicated that CAM has a typical character of cation high moleculer flocculation and better flocculating ability than chitosan . The removal rate of COD_(Cr) of dyeing waste water enhanced by 30% in flocculant's adding quantity reduced by 80%.

Key concepts: Flocculation, Chitosan, Ammonium persulfate, Dyeing, Acrylamide, Pulp and paper industry, Chemical engineering, Ammonium

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