The effects of H_2O_2 mass fraction,catalyst concentration and solution p H on H_2O_2 catalytic oxidation for flue gas denitrification were studied. The Box-Behnken response surface methodology was utilized for modeling and optimizing the conditions,and the variance analysis was carried out. The results showed that solution p H,catalyst concentration,H_2O_2 mass fraction and the first level interaction between catalyst concentration and H_2O_2 mass fraction had significant effects on denitrification rate. T...