Journal of Environmental Health Sciences (한국환경보건학회지)

Korean Society of Environmental Health (한국환경보건학회)
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A Study on the Characteristics of Chloramination as an Alternative Disinfectant in Drinking Water

클로라민의 소독특성에 관한 연구

  • Kim, Pung-Chung (Department of Environmental Engineering, Kon-Kuk University) ;
  • Woo, Dal-Sik (Department of Environmental Engineering, Kon-Kuk University) ;
  • Nam, Sang-Ho (Department of Environmental Engineering, Kon-Kuk University)
  • Published : 1999.09.01
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Abstract

This study was carried to investigate the characteristics of chloramination as a disinfection in drinking water distribution system. The raw water comes from midstream of Han river. In the range of pH 6~8, preformed chloramine of $Cl_2/NH_3-N$ ratio 5:1 had the HPC inactivation of more than 99% with lower pH and shorter contact time and available chloramine residual was decreased a little. In the chloramines of $Cl_2/NH_3-N$ ratio 3:1~5:1, the higher $Cl_2/NH_3-N$ ratio, the much inactivation of HPC was increased, but as contact time was longer, HPC inactivation of $Cl_2/NH_3-N$ ratio 3:1~5:1 were equaled. Bactericidal activity of three chlorine and postammoniation was influenced by free available chlorine completely and that of preammoniation was as follows : free chlorine ${\fallingdotseq}$ postammoniation>preammoniation>preformed chloramine.

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