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Effect of Water Treatment for Nakdong River Raw Water by Continuous Ozone Process
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 Title & Authors
Effect of Water Treatment for Nakdong River Raw Water by Continuous Ozone Process
Lim, Young-Sung; Kang, Gwan-Ho; Lee, Hong-Jae; Seo, Dong-Cheol; Park, Moon-Su; Heo, Jong-Soo; Cho, Ju-Sik;
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 Abstract
This study was carried out to evaluate the pollutant removal efficiencies of the advanced drinking water treatment using ozonation process. For raw water, Nakdong River was used. By conducting continuous ozonation experiments, the following results were obtained. Efficiency of water treatment was enhanced with increase in ozone dosage. When ozone dosage of 3 mg/L was used, preozonation ot raw water reduced TDOC, ADOC, A &BDOC and NRDOC as much as 0.6 mg/L, 0.2 mg/L, 0.1 mg/L and 1.0 mg/L, respectively. On the other hand, content of BDOC increased at the level of 0.8 mg/L. Ratio of UV254 absorbance to DOC content by the preozonation with 1, 3 and 5 mg/L dosage were 0.048, 0.044 and 0.037, respectively. In case of postozonation, it were 0.018, 0.015 and 0.012, respectively. When the ratios of consumpted ozone content to 1 mg of initial DOC were 1.5 and 2.3 in preozonation and postozonation treatment, respectively, the highest DOC removal rates of 25% and 32% were obtained by the continuous ozonation.
 Keywords
ozonation process;TDOC;ADOC;A&BDOC;NRDOC;BDOC;UV 254 absorbance;
 Language
Korean
 Cited by
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