Membrane Journal (멤브레인)

The Membrane Society of Korea (한국막학회)
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Ceramic Based Photocatalytic Membrane for Wastewater Treatment: A Review

폐수처리를 위한 세라믹 기반 광촉매 분리막: 총설

  • Kwak, Yeonsoo (Energy and Environmental Science and Engineering, Integrated Science and Engineering Division, Underwood International College, Yonsei University) ;
  • Patel, Rajkumar (Energy and Environmental Science and Engineering, Integrated Science and Engineering Division, Underwood International College, Yonsei University)
  • 곽연수 (연세대학교 언더우드학부 융합과학공학부 에너지환경융합전공) ;
  • 라즈쿠마 파텔 (연세대학교 언더우드학부 융합과학공학부 에너지환경융합전공)
  • Received : 2022.05.30
  • Accepted : 2022.06.23
  • Published : 2022.06.30
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Abstract

Membrane separation provides various advantages including cost effectiveness and high efficiency over traditional wastewater treatment methods such as flocculation and adsorption. However, the effectiveness of membrane separation greatly declines due to membrane fouling, where pollutants are accumulated on the membrane surface. Among different groups of membranes, ceramic membranes can provide good antifouling properties due to its hydrophilicity and chemical stability. In addition, composite membranes such as graphene oxide modified membranes can help prevent membrane fouling. Recently, hybrid photocatalytic membranes have been proposed as a solution to prevent membrane fouling and provide synergetic effects. Membrane separation can solve the disadvantages of photocatalytic oxidation such as low reutilization rate, while photocatalytic oxidation can help reduce membrane fouling.

막여과는 흡착, 응집 등의 폐수 처리 방법에 비교해 경제적이며, 높은 효율을 보인다는 장점을 가지고 있다. 하지만, 막의 표면에 오염물질이 흡착하여 발생하는 막오염 현상으로 인해 막여과의 효율이 크게 줄어들게 된다. 다양한 종류의 막 중에서 세라믹 분리막은 친수성을 띄며, 화학적으로 안정되었기 때문에 오염방지에 효과적이다. 또한, 산화 그래핀 등을 활용한 복합막도 막오염을 예방하는 데 도움이 될 수 있다. 최근에는 막오염을 방지하고 시너지 효과를 얻기 위해 광촉매 분리막이 해결책으로 제시되었다. 막 분리는 광촉매의 단점인 촉매의 낮은 재사용률을 보완할 수 있으며, 광촉매 반응은 오염을 막을 수 있다.

Keywords

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