A chemical absorption-biofilm electrode reactor (CABER) integrated system was used for removal of nitrogen monoxide (NO) from flue gas. Effects of the electric current on NO removal efficiency, concentration of Fe(II)EDTA, and consumption rate of glucose in the stabilization phase were investigated. Results indicate that the optimum impressed current was 0.04 A [i.e., 66.7 A m(-3) net cathodic compartment (NCC) of the current density]. Under this condition, the consumption rate of glucose was 0.462 g h(-1) Performance evaluation of this new approach was investigated under optimum conditions as well. It is noted that minimum residence time was only 20 s, maximum oxygen tolerability was 10%, and maximum elimination capacity of NO was 104.2 g of NO m(-3)h(-1). The contribution of H-2 and glucose in reduction of Fe(III)EDTA was also studied. The results indicated that increasing the H-2 supply appropriately could reduce the consumption of glucose. This new approach showed a better performance on NO removal and a larger processing load than those of the chemical absorption-biological reduction (CABR) integrated system.