| Abstract |
| We examined the removal efficiency of Geosmin and 2-MIB by Peroxone Process according to water temperature and NaOH concentration. It was found that under the same condition of water temperature, injection of O3 and H2O2 was higher efficient rather than injection of only O3. In addition, It was also found that as mole ratio of H2O2/O3 was getting higher, the removal efficiency was getting higher overall. But having to compare with 5℃ and 15℃ temperature, it was evident that the initial reaction rate was much slower at low temperature 5℃ with much lower efficiency. Based on a 7min(contact time) under 5℃, Geosmin and 2-MIB showed a mole ratio of 1.0 while showing a staggering 50% removal rate from 0.75 mole ratio under 15℃. For well-over 15 minutes, the removal rate went down from 50% to 27% and 20% in Geosmin and 2-MIB, respectively. As NaOH was injected to ramp up efficiency under low temperature, the processing efficiency for Geosmin and 2-MIB went up significantly. It is apparent that the efficiency was more pronounced when handled under increased NaOH injections in 5℃ than in 15℃. This directly translates into a conclusion that processing via NaOH was more efficient under low temperature 5℃ than 15℃. As in the case for pH, it was found that akaline substance reacted faster than acidic/neutral ones whereas the pace was far slower in pH 11 including not only reaction time but also processing efficiency. |
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| Key Words |
| Geosmin, 2-MIB, Peroxone, Water Temperature, NaOH |
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