Chitosan-Silica blended membranes are an attractive choice for the purification process because porous size and morphology which provides higher selectivity. In this study, the synthesis and characterization of chitosan-silica membranes were carried out with a mass variation of Poly Vinyl Alcoholl (PVA) were 1, 2, 3 grams and pressure 1, 2, 3 bars for the waste water treatment hotel. The purpos…