Reaction-diffusion front in a system with strong quenched disorder

Using the Sinai model, we study the effect imposed by strong quenched disorder on the dynamic properties of the reaction front formed in [Formula Presented] reaction-diffusion systems with initially separated reactants. We confirm that the general scaling ansatz is valid also for disordered systems and find that a single characteristic length controls the asymptotic properties of the entire system. We compare our results with those obtained for different types of disorder as well as with results derived for a translationally invariant space.