In this work, anion exchange membranes (AEMs) were prepared from double quatemization and sol-gel reaction of synthesized anion exchange precursor and polyvinyl alcohol (PVA). The anion exchange precursor was the result of alkylation reaction of 1,6-Dibromohexane on 1,4-Diazabicyclo [2.2.2] octane (DABCO) and ring opening reaction by 3-glycidoxypropyltrimethoxysilane. The prepared membranes showed good physicochemical properties. The water uptakes were in the range of 82.6-148.5% while the ion exchange capacities (IECs) were in the range of 0.61-0.86 mmol/g. The membranes demonstrated high mechanical strengths and thermal stabilities. Tensile strengths (TS) were in the range of 15.4-22.7 MPa while E-b values were in the range of 441.2-541.0%. Those membranes were tested in diffusion dialysis (DD) for recovery of acid by using a simulated waste solution of HCl/FeCl2 mixture (1 M HCl + 0.25 M FeCl2). The results reveal higher acid dialysis coefficients (U-H) between 30:0 and 44.9 m/h x 10(-3) and separation factor (S) ranges of 20.9-32.3 which are greater than commercial membranes DF-120 (U-H = 9 x m/h x 10(-3) and S = 18.5).