Reaction performance study on denitration in aqueous solution of the dual oxidant (H 2 O 2 /S 2 O 8 2 − )

The reaction performance study on NO removal by using the dual oxidant (H 2 O 2 /S 2O 8 2 − ) solution was carried out in self‐designed bubbling reactor. The experimental results showed that NO removal efficiency was up to 92.9% at pH 11. The results of the thermodynamics calculation verified that NO removal by using strong alkaline dual oxidant (H 2 O 2 /S 2O 8 2 − ) solution was feasible. The results of the kinetic study showed that the reaction between NO and dual oxidant (H 2 O 2 /S 2O 8 2 − ) in strong alkaline condition was found to be 1.5‐order with respect to NO, and the average activation energy of this reaction was 26.32 kJ mol −1 in the quick‐reaction zone. The ion chromatography (IC) analysis results in strong alkaline condition showed thatNO 3 −andSO 4 2 −were the final ionic product in spent reaction solution. This dual oxidant (H 2 O 2 /S 2O 8 2 − ) was a promising oxidant for the simultaneous wet removal of NO and SO 2 with high efficiency, no secondary pollution and low cost. © 2016 American Institute of Chemical Engineers Environ Prog, 35: 1361–1366, 2016