الفهرس 
INTRODUCTIONOnly 14 pages are availabe for public view
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Abstract
Industrial wastewater especially textile effluents (dyes) are very harmful to humans, animals and water life. The presence of these dyes in water reduces light penetration and has a derogatory effect on photosynthesis; lethal levels may be reached affecting aquatic systems and associated flora and fauna. Because of these harmful impacts and environmental hazardous of dyes on human, plant and aquatic life, several physical, chemical and biological decolorization methods have been reported during the past three decades. Nanotechnology is the engineering and art of manipulating matter at the nano scale (1–100 nm). As particle size decreases, the proportion of atoms located at the surface increases, which raises its tendency to adsorb, interact and react with other atoms, molecules and complexes to achieve charge stabilisation. Amongst the promising class of nanomaterials, nanopolymeric materials such as poly acrylonitrile (PAN) has received the most attention and has been shown to effectively degrade a wide spectrum of water contaminants, such as azo dyes. PAN is an important engineering polymer with commercial importance due to its unique thermal properties, good solvent resistance and as the experimental results proved that the prepared PAN has high adsorption capacity to the dye reached to 96.3% at pH of 13. The improvement in the prepared material dosage has positive impact on the percentage dye removal, as with increasing material dosage from (0.01-0.5 g), the removal percentage increased from (43.6%-85%). Meanwhile, the increment in initial dye concentrations has negative impact on the dye sorption process onto the prepared material, its relatively higher hydrophilicity compared to other commercial polymers. The other form of the prepared composite beside particles was the fabrication of a membrane from the prepared poly (AN –co –py)/Zro2 nanoparticles, but there was a problem with its fabrication, so, there was a must to use a polymer additive in order to improve its mechanical properties. As the experimental results proved that the fabricated membrane has high adsorption capacity to the dye reached to 98.867%by using dye concentration of 100 ppm. The improvement in the fabricated membrane thickness has negative impact on the percentage dye removal, as with increasing from membrane thickness (1.033, 1.408 and 1.543µm), and the removal percentage increased from (90.887% and 77.252%). Meanwhile, the increment in adding amount of the polymer additive (PVP) (0.25-1 wt %) concentrations has positive impact on the dye sorption process onto the fabricated membrane (1.381-76.98%).