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Title: Development and characterization of tubular composite ceramic membranes using natural alumino-silicates for microfiltration applications
Authors: Ghouil, Boudjemaa
Harabi, Abdelhamid
Bouzerara, Ferhat
Boudaira, Boukhemis
Guechi, Abdelkrim
Demir, Mustafa Muammer
Figoli, Alberto
Keywords: Ceramic tubular membrane
Membrane preparation
Porous materials
Water permeability
Issue Date: May-2015
Publisher: Elsevier Ltd.
Source: Ghouil, B., Harabi, A., Bouzerara, F., Boudaira, B., Guechi, A., Demir, M. M., and Figoli, A. (2015). Development and characterization of tubular composite ceramic membranes using natural alumino-silicates for microfiltration applications. Materials Characterization, 103, 18-27. doi:10.1016/j.matchar.2015.03.009
Abstract: Abstract The preparation and characterization of porous tubular ceramic composite microfiltration membranes, using kaolins and calcium carbonates, were reported. The porous gehlenite (2CaO·Al2O3·SiO2) and anorthite (CaO·Al2O3·2SiO2) based ceramics were obtained by a solid state reaction. A ceramic support, sintered at 1250 C, within an average pore size of about 8 μm, a porosity of about 47% and a compression strength around 40 MPa, was prepared. The microfiltration active top layer was added on the support by a slip casting from clay powder suspensions. The novel microfiltration membrane layer has a thickness of 40 μm and an APS value of about 0.2 μm. This average pore size value was improved and considerably lower than those reported in the literature (0.5 μm). The performance of the novel microfiltration ceramic membrane was determined for evaluating both the water permeability and rejection. This proved the potentiality of the membrane produced in the microfiltration field. Moreover, the good adhesion, between the support and the active microfiltration layer membranes, was also proved. A correlation between microstructures of used powders and physicochemical properties was discussed. Finally, the origin of the unique two powder order membrane depositions was also proposed.
ISSN: 1044-5803
Appears in Collections:Chemistry / Kimya
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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