Abstract
In this work, the porous ceramic multilayer ultrafiltration membrane is developed. Macroporous support was formed by extrusion of ceramic paste derived from natural Moroccan Sahara Clay. The microporous interlayer was then performed by slip casting from zirconia commercial powders and finally the active ultrafiltration toplayer was obtained by solgel route using TiO2 sol. The performance of TiO2 ultrafiltration membrane was evaluated by pores diameter, thickness of the top layer, water flux, and molecular weight cut off (MWCO). The water permeability measured for this composite membrane is 9.051 l/(m2·h·bar), the thickness is around 900nm, the pore diameter is centered near 7nm and the MWCO was about 5000Da.
Highlights
Membranes have occupied an important position in chemical technology and is widely used
Tangential filtration processes appear to be one of the most important advancements for liquid depollution processes due to their advantage compared to other modules like minimum membrane fouling thanks to high feed flowrate [2]. This is why membranes processes are widely used in water industries for desalination, water purification and wastewater treatment by biomembrane reactors
The support and the ultrafiltration membrane were characterized by means of different techniques
Summary
Membranes have occupied an important position in chemical technology and is widely used. Tangential filtration processes appear to be one of the most important advancements for liquid depollution processes due to their advantage compared to other modules like minimum membrane fouling thanks to high feed flowrate [2]. This is why membranes processes are widely used in water industries for desalination (reverse osmosis), water purification (ultra and nanofiltration) and wastewater treatment by biomembrane reactors. Due to its high thermal resistance, excellent mechanical and chemical stability, and most importantly, high permeability and selectivity as performance parameters, many researchers have begun to show interest in new ceramic materials in the field of separation process. A series of pH dependent filtration experiments is carried out with NaCl, Na2SO4, CaCl2 and CaSO4
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