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Environmental Engineering Research 2004;9(2): 58-65. DOI: https://doi.org/10.4491/eer.2004.9.2.058
POLYAMINE FLOCCULANTS FOR THE ENHANCEMENT OF FLOCCULATION EFFICIENCY IN DRINKING WATER TREATMENT
Seok Hun Lee1, Won Sik Shin1, Jeong Hak Choi1, Sang June Choi1, Lee Soon Park2, Peter Pang3, and Peter Englezos3
1Department of Environmental Engineering Kyungpook National University, Taegu 702-701, Korea
2Department of Polymer Engineering Kyungpook National University, Taegu 702-701, Korea
3Department of Chemical and Biological Engineering and Pulp and Paper Center, University of British Columbia, Vancouver, B.C. V6t 1Z4, Canada
Corresponding Author: Sang June Choi ,Tel: +82-53-950-6582, Fax: +82-53-950-6579, Email: sjchoi@knu.ac.kr
Received: April 14, 2003;  Accepted: April 9, 2004.
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ABSTRACT
Laboratory studies were conducted to evaluate the flocculation efficiency of synthesized poly-amine flocculants used in combination with PAC (polyaluminum chloride) to treat water samples from the Nak-dong River in Korea. The use of polyamine flocculants in combination with PAC improved removal efficiency of turbidity, TOC and UV254. The result of jar lest indicated that addition of polyamine flocculant significantly reduced PAC consumption. The optimal polyamine flocculant concentrations were found to be 0.4 - 0.5 mg/L at lower turbidity (-16.0 NTU) and 0.5 - 1.0 mg/L at high turbidity (-740 NTU), respectively. Results indicated that the combination of PAC and polyamines was effective in reducing PAC dosage, lowering residual aluminum ion concentration in the treated water and improving turbidity removal.
Keywords: Polyamine | flocculant | PDA | turbidity | drinking water
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