标题：Elaboration and characterization of ceramic membranes made from natural and synthetic phosphates and their application in filtration of chemical pretreated textile effluent
期刊名称：Journal of Materials and Environmental Science
印刷版ISSN：2028-2508
出版年度：2015
卷号：6
期号：8
页码：2190-2197
出版社：University of Mohammed Premier Oujda
摘要：This study is related to the development of microfiltration and ultrafiltration ceramic membranes using natural and synthetic phosphates. Macroporous support was formed by extrusion of a ceramic paste derived from natural Moroccan apatite coming from the mine of Khouribga. The preparation and characterization of support and membranes layers were described in this work. Microfiltration MF membrane from natural Moroccan phosphate and ultrafiltration UF membrane from PTP (Potassium Titanyl Phosphate) were performed respectively by slip casting process and sol-gel route. The support fired at 1000 °C showed a pore diameters centered near 10 μm and a porosity of about 43%. The pore diameters are 0.35 μm and 10 nm for microfiltration and ultrafiltration layers, respectively. The measured water permeability is about 778.6 L.h -1 .m -2 .bar -1 and 80 L.h -1 .m -2 .bar -1 for MF and UF membranes, respectively. Elaborated membranes were successfully applied as a complementary process for decolorizing concentrated textile effluent pretreated by coagulation-flocculation. These membranes present interesting retention properties with regard to residual turbidity and dye remained in the effluent after the chemical pre-treatment
关键词：Natural phosphates; PTP; Ceramic membranes; MF and UF; Textile effluent.
