Evaluation of multiple corona reactor modes and the application in odor removal

Effects of multiple corona reactor modes on pulse characteristics, energy transfer efficiency, and odor (H2S and NH3) removal were investigated experimentally by the wire-plate corona reactor(s). The removal efficiency of H2S was only 91% and the energy consumption was 16.1Wh m(-3) by the single mode with a gas-flow rate of 23m(3)h(-1) and an initial concentration of 200mg m(-3). At the same experimental conditions, almost 100% removal efficiency was achieved and the energy consumption was only 12.8 and 14.9 Wh m(-3) by the series and parallel modes. In the case of 50 mg m(-3) NH3 removal at the same gas-flow rate, the removal efficiencies with the single mode, the series and parallel modes were 64, 92 and 70%, respectively. The energy requirement did not increase at the same residence time under the experimental conditions of the single mode with a gas-flow rate of 11.5m(3) h(-1) and the series or parallel mode with a gas-flow rate of 23.0m(3) h(-1). The experimental results indicate that the series and parallel modes are effective in saving energy consumption, improving removal ability and efficiency, especially for the series mode.