Membrane Journal (멤브레인)

The Membrane Society of Korea (한국막학회)
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Hybrid Water Treatment of Tubular Ceramic MF and Photocatalyst Loaded Polyethersulfone Beads : Effect of Organic Matters, Adsorption and Photo-oxidation at Nitrogen Back-flushing

관형 세라믹 정밀여과와 광촉매 첨가 PES 구의 혼성 수처리 : 질소 역세척 시 유기물 및 흡착, 광산화의 영향

  • Hong, Sung Taek (Department of Environmental Sciences & Biotechnology, Hallym University) ;
  • Park, Jin Yong (Department of Environmental Sciences & Biotechnology, Hallym University)
  • 홍성택 (한림대학교 환경생명공학과) ;
  • 박진용 (한림대학교 환경생명공학과)
  • Received : 2013.02.14
  • Accepted : 2013.02.25
  • Published : 2013.02.28
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Abstract

The effect of humic acid (HA), and the roles of microfiltration (MF), PES (polyethersulfone) beads adsorption, and photo-oxidation were investigated in hybrid process of ceramic MF and PES beads loaded with titanium dioxide ($TiO_2$) photocatalyst for advanced drinking water treatment. Those were compared and studied in viewpoints of membrane fouling resistance ($R_f$), permeate flux (J), and total permeate volume ($V_T$). Because membrane fouling increased dramatically as decreasing HA, $R_f$ increased and J decreased, and finally $V_T$ was the highest at 2 mg/L HA. In the experiment to investigate the roles of photo-oxidation and adsorption at humic acid 4 mg/L and 6 mg/L. In both conditions, $R_f$ was the lowest and $V_T$ was the highest in MF + $TiO_2$ + UV process. The average treatment efficiencies of turbidity and dissolved organic matters were the highest in MF + $TiO_2$ + UV process, too.

고도정수처리를 위한 관형 세라믹 정밀여과와 이산화티타늄($TiO_2$) 광촉매 첨가 PES (polyethersulfone) 구의 혼성공정에서 유기물질의 영향 및 정밀여과(MF), PES 구 흡착, 광산화의 역할을 막오염에 의한 저항($R_f$) 및 투과선속(J), 총여과부피($V_T$)를 통해서 비교 및 고찰하였다. 휴믹산의 농도가 증가함에 따라 급격한 막오염으로 인해 $R_f$는 증가하고 J는 감소하였으며, $V_T$는 휴믹산의 농도가 2 mg/L인 조건에서 가장 높았다. 광산화와 흡착의 영향을 알아보기 위해 휴믹산의 농도 4 mg/L와 6 mg/L에서의 결과를 비교하였다. 두 가지 조건에서 공통적으로 정밀여과(MF)만의 단독공정에서 막오염이 급격하게 진행되어 $R_f$값이 가장 높게 나타났고, 총여과부피($V_T$)는 광촉매와 자외선의 혼성공정(MF + $TiO_2$ + UV)에서 가장 높은 값을 나타내었다. 탁도와 유기물질의 평균처리효율은 MF + $TiO_2$ + UV 공정에서 가장 높은 값을 나타내었다.

Keywords

References

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