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http://dx.doi.org/10.4491/KSEE.2011.33.9.656

Effect of Pre-ozonation on the Trans-membrane Pressure of Ceramic Membrane  

Bae, Byung-Uk (Department of Environmental Engineering, Daejeon University)
Publication Information
Journal of Korean Society of Environmental Engineers / v.33, no.9, 2011 , pp. 656-661 More about this Journal
Abstract
The performance of a domestic ceramic membrane with pore size of $0.1{\mu}m$ was evaluated to produce drinking water. A pilot-scale ceramic membrane filtration plant with a capacity of $1m^3/d$ was operated at the filtration flux of $3.0m^3/m^2{\cdot}d$ to investigate the effect of both backwash interval and pre-ozonation on TMP (trans-membrane pressure) increasing rate. The TMP increased with increasing the backwash interval. However, the application of pre-ozonation reduced the TMP increasing rate remarkably. When 1 mg/L of ozone was dosed with contact time of 5 min, TMP increasing rate at the backwash interval of 1 hr was reduced by 30%. This result indicated that pre-ozonation was very effective in reducing membrane fouling. There was almost no change in TMP increasing rate when the ozone contact time was maintained in the range of 5 to 15 min. Increasing ozone concentration up to 3 mg/L showed beneficial effect on TMP increasing rate.
Keywords
Drinking Water; Ceramic Membrane; Trans Membrane Pressure (TMP); Pre-ozonation; Ozone Dose and Contact Time;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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