Membrane and Water Treatment

  • 제14권1호
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  • Pages.11-18
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  • 2023
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  • 2005-8624(pISSN)
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  • 2092-7037(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Characteristic of alumina-based microfiltration ceramic membrane

  • Hyunsoo, Kim (Department of Energy and Resource Engineering, Chosun University) ;
  • Oyunbileg, Purev (Department of Energy and Resource Engineering, Chosun University) ;
  • Eunji, Myung (Green-bio Research Facility Center, Seoul National University) ;
  • Kanghee, Cho (Research Institute of Agriculture and Life Sciences, Seoul National University) ;
  • Nagchoul, Choi (Research Institute of Agriculture and Life Sciences, Seoul National University)
  • 투고 : 2022.09.13
  • 심사 : 2023.01.03
  • 발행 : 2023.01.25
⟨ 이전 논문 다음 논문 ⟩

초록

This work addresses the development of microfiltration ceramic membrane from alumina using extrusion method. The membranes were sintered at different temperatures ranging between 1000 and 1300℃. The alumina was characterized with thermogravimetric analysis, particle size distribution, X-ray diffraction, Fourier transform infrared spectrometer and scanning electron microscope analysis. Subsequently, the effect of sintering temperature on the membrane properties such as porosity, flexural strength, and pure water permeability was investigated and optimized for the sintering temperature. It is observed that with increasing sintering temperature, the porosity of the membranes decreases and the flexural strength, and pure water permeability of the membranes increase. The uncoated and coated membranes were compared at constant flux mode of filtration. Under the turbidity solution recirculation alone at 100 NTU, trans-membrane pressure (TMP) of uncoated membrane remained constant when the filtration flux was below 121 Lm-2 h -1 , while the coated membrane was 111 Lm-2 h -1 . Although suction pressure increased more rapidly at higher turbidity, coated membrane filtration showed better removal efficiency of the turbidity.

키워드

과제정보

This study was supported by Korea Environmental Industry & Technology Institute (Grant numbers 2020002870001).

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