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Environmental Engineering Research 2010;15(1): 9-14. DOI: https://doi.org/10.4491/eer.2010.15.1.009
Formation of Assimilable Organic Carbon from Algogenic Organic Matter
Ji Hoon Kim1, Soon-Hyung Chung2, Jing-Yeon Lee2, In-Hwan Kim2, Tae-Ho Lee2, and Young Ju Kim1
1Department of Environmental Engineering, Kyungpook National University, Sangyeok-dong 3-ga, Buk-gu, Daegu 702-701, Korea
2Department of Health Environment, Daegu Health College, Taejeon-dong 1-ga, Bukgu, Daegu 702-722, Korea
Corresponding Author: Ji Hoon Kim ,Tel: +82-53-950-7896, Fax: +82-53-950-7897, Email: kimjihoon@knu.ac.kr
Received: March 1, 2010;  Accepted: March 15, 2010.
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The objective of this study was to assess the variation in the concentration of assimilable organic carbon (AOC) in a drinking water resource, and investigate the characteristics of AOC derived from algae. The seasonal change in AOC at the Kamafusa dam corresponded to changes in the algal cell number. In order to understand the relationship between AOC and algae in a water resource and water purification plant, two kinds of laboratory experiment were performed. The algal culture experiment showed that extracellular organic matter (EOM) that was released during the growth of Phormidium tenue with M-11 medium led to significant increases in the AOC concentration, but no significant variation in the AOC concentration was observed with CT medium containing a high dissolved organic carbon concentration. The chlorination experiment showed that the AOC included in EOM was not easily removed by chlorination, although the AOC included in intercellular organic matter released from the algal cells by chlorination was removed under conditions where residual chlorine was detected.
Keywords: Assimilable organic carbon | Chlorination | Extracellular organic matter | Intercellular organic matter
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