Journal of Powder Materials (한국분말재료학회지)

The Korean Powder Metallurgy & Materials Institute (한국분말재료학회 (*구 분말야금학회))
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Characterization of the Silica Coated Diatomite Based Ceramic Filter for Water Treatment

실리카 분말이 코팅된 수처리용 규조토계 세라믹 필터의 특성평가

  • Bae, Byung-Seo (Engineering Ceramics Department, Korea Institute of Materials Science) ;
  • Ha, Jang-Hoon (Engineering Ceramics Department, Korea Institute of Materials Science) ;
  • Song, In-Hyuck (Engineering Ceramics Department, Korea Institute of Materials Science) ;
  • Hahn, Yoo-Dong (Engineering Ceramics Department, Korea Institute of Materials Science)
  • 배병서 (한국기계연구원 부설 재료연구소 엔지니어링세라믹스연구실) ;
  • 하장훈 (한국기계연구원 부설 재료연구소 엔지니어링세라믹스연구실) ;
  • 송인혁 (한국기계연구원 부설 재료연구소 엔지니어링세라믹스연구실) ;
  • 한유동 (한국기계연구원 부설 재료연구소 엔지니어링세라믹스연구실)
  • Received : 2013.12.18
  • Accepted : 2014.02.04
  • Published : 2014.02.28
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Abstract

In this study, diatomite based materials were investigated as a support filter for silica particle coating. The silica sol for coating was synthesized by a st$\ddot{o}$ber process. The diatomite support was dry-pressed at 10 MPa and sintered at $1200^{\circ}C$ for 1 hour. The coating sol was prepared as a mixture of EtOH and silica sol. The diatomite support was coated by a dip-coating process. Silica coated diatomite filter was sintered at $1000{\sim}1200^{\circ}C$ for 1 hour. The largest pore size was decreased with increasing concentration ratio of coating sol. The gas and water permeability of silica coated diatomite decreased with increasing of concentration ratio of the coating sol.

Keywords

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