HEMATITE BASED ULTRAFILTRATION MEMBRANE PREPARED FROM PYRRHOTITE ASH WASTE FOR TEXTILE WASTEWATER TREATMENT

An Ultrafiltration (UF) inorganic membrane was synthesized based on Pyrrhotite Ash solid waste resulting from mining activity and naturel clay. The α-Fe2O3 UF-Membrane was prepared by spearing out metal-organic complex on microfiltration (MF) ceramic support, while the MF-support was prepared by mixture of pyrrhotite ash and a natural clay. The Pyrrhotite Ash was also deployed in the preparation of the metal-organic complex. The membrane composition, structure, morphology and operating parameters was studied. The MF support show a water permeability of 2.37 10-6 m3/s.m².kPa while the UF membrane exhibits a permeability of 2.49 10-7 m3/s.m².kPa. Other ways, the elaborated MF support and UF membrane was test on the elimination the treatment of tow textile wastewaters of reactive and disperse nature. The results show that the cascade filtration of support and UF membrane lead to the elimination of more 99 and 94% of turbidity and DCO in the case of the tow wastewaters.