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Title: The efficiency of chitosan as a coagulant in the treatment of the effluents from the Sugar Industry
Authors: Pambi, Ritha-Lorette Luti 
Musonge, Paul 
Keywords: Chitosan;Coagulation;Resin effluent;Sugar wastewater;Polymer
Issue Date: 2015
Source: Pambi, R.L.L. and Musonge, P. 2015. The efficiency of chitosan as a coagulant in the treatment of the effluents from the Sugar Industry. Journal of Polymer Materials. 32(1): 57-63.
Journal: Journal of Polymer Materials (New Delhi) 
Chitosan has been used as a coagulant for industrial wastewater treatment. However, no attention has been given to the coagulation of sugar effluents using this polymer. Two effluent streams from a local sugar refinery, namely the final effluent (FE) and the resin effluent (RE) were treated using chitosan prepared by dissolution in aqueous hydrochloric acid. The optimum chitosan dosage was found to be 138 mg/l and 7.41 mg/l for RE and FE respectively, beyond which, the efficiency of the coagulant decreased. The efficiency of the chitosan was higher under acidic conditions and using sodium hydroxide to adjust the pH negatively affected the performance of the chitosan. The treatment of FE yielded better removal efficiency (97% total suspended solids, 61% colour and 35% chemical oxygen demand) than RE (68% total suspended solids, 30% colour and 15% chemical oxygen demand). This coagulant can be used to pre-treat turbid water for further treatment.
ISSN: 0973-8622
Appears in Collections:Research Publications (Engineering and Built Environment)

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