Korean Membrane Journal

The Membrane Society of Korea (한국막학회)
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Lake Water Treatment using Ceramic Ultrafiltration Membrane System with Periodic Water-backflushing

  • Park, Jin-Yong (Department of Environmental Sciences & Biotechnology, Hallym University) ;
  • Kyung, Gee-Yong (Department of Environmental Sciences & Biotechnology, Hallym University) ;
  • Han, Song-Hee (Department of Environmental Sciences & Biotechnology, Hallym University) ;
  • Kim, Hyun-Woo (Department of Environmental Sciences & Biotechnology, Hallym University) ;
  • Lee, Hyuk-Chan (Department of Environmental Sciences & Biotechnology, Hallym University)
  • Published : 2006.12.31
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Abstract

We treated lake water by ceramic ultrafiltration membranes and found the optimal backflushing period and trans-membrane pressure (TMP) of periodic water-backflushing system. The optimal filtration time interval at fixed BT = 3 sec was 30 for A002 membrane in all viewpoints of $J/J_0,\;R_f$, and $V_T$, and we could acquire the highest $V_T$ value in the membranes used here. However, the highest $V_T$ was acquired at FT = 60 sec for M9, and at FT = 90 sec for C005 membrane. Then the lower TMP reduced the membrane fouling during filtration of lake water, and could maintain the higher permeate flux compared with the initial flux. However, the largest value $V_T$ could be obtained at the highest TMP condition for M9 membrane at fixed FT = 60 sec and BT = 3 sec. The quality of treated water in our UF ceramic system was Turbidity = $0.20{\sim}4.88NTU$, $COD_{Mn} = 0.00{\sim}2.58 mg/L$, $TDS = l8{\sim}71 mg/L$, and $NH_3-N = 0.004{\sim}1.689 mg/L$.

Keywords

References

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