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DOI : , Vol.19, No.2, 37 ~ 45, 2011
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| Title |
| Bromate Behaviour in Nakdong River and Advanced Water Treatment System |
| 김영진 Young Jin Kim , 송미정 Mi Jeong Song , 빈재훈 Jae Hun Bin , 현길수 Kil Soo Hyun |
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| Abstract |
| In this study, a bromate behaviour was investigated in the basin of Nakdong river from Andong dam to Hagueun (total sampling site, 29: main stream, 14 and side stream, 15) and the processes of advanced water treatment system (AWTS), which consisted of preozonation, cross-flow settler, rapid sand filter, postozonation, biological activated carbon (BAC) beds. As a result, the bromide concentration in the river water was in the range of 20-148㎍/L in the main stream and 17-298㎍/L in side stream. In particular, the bromide level in Mulgum (83㎍/L) located at the low region was relatively lower than that in USA(100㎍/L). During May to November, the bromate was not detected in the influents of 6 water treatment plants (WTP) located at low region of the river, while the bromate concentration of <5㎍/L was detected in the effluent from two WTP (HM and DS) during August to November. For bromate behaviour in the processes of three WTPs, the bromate concentration of 1.2-9.4㎍/L was detected in postozonation and BAC processes. This phenomenon was particularly observed during September to November. These results indicate that influent quality and ozonations has affects bromate formation. |
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| Key Words |
| Bromate, Nakdong river, advanced water treatment system, influent quality, ozonation |
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