Filtration testing of a ceramic capillary filter produced from a high-silica glaze

San O., Hosten C.

MINERALS ENGINEERING, cilt.15, sa.7, ss.553-556, 2002 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 15 Sayı: 7
  • Basım Tarihi: 2002
  • Doi Numarası: 10.1016/s0892-6875(02)00079-1
  • Dergi Adı: MINERALS ENGINEERING
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.553-556
  • Anahtar Kelimeler: filtration
  • Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

A laboratory procedure for the production of a ceramic capillary filter from a high-silica glaze was described and its filtration response was tested in dead-end and periodic vacuum filtration modes with suspensions containing micron and sub-micron clay particles obtained from a ceramic factory wastewater stream. The same glaze raw material ground to two different levels of fineness was used for the production of the porous ceramic substrate and its surface coating. The coating particulate sol was deposited onto the substrate by the filtration technique. The filter substrate and the coating were sintered at relatively lower temperatures (950-980degreesC) than conventional ceramic sintering. The filter indicated a non-clogging behavior in both of the filtration modes, and proved a potential for filtering large volumes of dilute clay slurries by periodic filtration operations. (C) 2002 Elsevier Science Ltd. All rights reserved.