| Reducing the concentrations of odorous and greenhouse gases produced by biological treatment system is a challenging task. In this research an effective barrier discharge non-thermal plasma reactor was studied and developed for destroying dilute gases and odors generated by such biological degradation.; By a series basic experimental and theoretical study, epoxy was shown to be the most suitable dielectric material for the discharge barrier and the special wire-to-plate geometry of the electrodes were determined to be a highly effective structure of the reactor. A theoretical analysis of the wire-to-plate barrier discharge reactor is presented. By conducting the optimization experiments, the 1.15 mm thickness of epoxy, a 15 mm distance of the wire electrodes, and a 2.38 mm gap space were obtained as a group of optimum structural parameters in the lab. Ozone production of the reactor was used to optimize operating and structural parameters. This was then correlated with destruction of two pollutants, ammonia and hydrogen sulfide.; A prototype reactor with wire-to-plate geometry was designed to utilize highly effective structural parameters to achieve the desired pollutant removal efficiency. Removal efficiencies of 97% were obtained from hydrogen sulfide at a flow rate of 5.7 m3/min using 10 kV applied voltage generated by 110 V 60 Hz power supply. The dilute gases normally exiting a biological reaction of stored manure were reduced by 95% with some residual ozone in the air stream. |
