| Ceramic membrane for water treatment using diatomite based natural materials |
| In-Hyuck SONG |
| Korea Institute of Materials Science |
|
Keywords: Porous ceramics, Diatomite, Porosity, Membrane
Ceramic membranes can be applied under extreme operating conditions such as low pH, high pressure and high temperature. Especially, the inherent limitations of conventional polymer membranes can be overcome by adopting ceramic membranes simply to the existing water treatment systems. Moreover, there are a lot of potential applications of ceramic membranes such as distillation, adsorption and extraction in various industrial areas. Therefore, the ceramic membrane technology is not a mere ceramic processing technology, but a highly influential technology to the overall environment technology.
In this study, we focused that the cost-effective membrane manufacturing process by adopting various kinds of natural materials like diatomite or clays. These low-cost materials offer attractive mechanical resistance and can be used as a filter, filler, or a mild abrasive material due to its highly porous structure. Accordingly, a challenging area among the membrane applications of natural materials is how to consolidate them as a bulk structure that retains its unique, inherent properties or how to coat them properly on any suitable substrate. This presentation consists of three parts: (1) Tailoring pore structures of the substrate of ceramic membrane, (2) Functionalizing the coating layer of ceramic membrane, and (3) Extruding the substrate of ceramic membrane. Also, the aim of this study is to clarify whether natural materials such as diatomite and clays can be applied to water treatment area either as a substrate material or a coating material.
References:
[1] N. van Garderen, F.J. Clemens, M. Mezzomo, C. P. Bergmann, T. Graule, Applied Clay Science, 2011, 52, 115.
[2] P.V. Vasconcelos, J. A. Labrincha, J. M. F. Ferreira, Journal of the European Ceramic Society 2000, 20, 201. |
| Acknowledgements : This study was supported financially by the Research Program of the Korea Institute of Materials Science (KIMS) (PNK3680). |
|
