Abstract: Devices suitable for use in an advanced oxidation method for organic and inorganic pollutants deploying OH* radicals and ozone is disclosed. Optionally, a first discharge device, providing OH* radicals and second discharge device providing ozone, are combined to provide desirable chemical and biocidal characteristics. Further, efficient mixing systems for transferring the radicals to the target fluid are disclosed.

Abstract: Devices suitable for use in an advanced oxidation method for organic and inorganic pollutants deploying OH* radicals and ozone is disclosed. Optionally, a first discharge device, providing OH* radicals and second discharge device providing ozone, are combined to provide desirable chemical and biocidal characteristics. Further, efficient mixing systems for transferring the radicals to the target fluid are disclosed.

Abstract: A barrierless device and method for generating streamer discharge is provided including solid/liquid electrodes for free radical generation at high efficiency. A first electrode, including periodically positioned discharge ignition tips is deposed in proximity to a second electrode, creating a discharge gap with no dielectric barrier layer in between. The discharge gap includes an inlet and an outlet. Streamers with proximity constraints emerge from the first electrode and propagate through the discharge gap towards the second electrode by supplying either positive or negative pulse voltage to the first electrode, resulting in interaction of the streamer heads with the discharge gas and generation of radicals. Optionally, the second electrode is a liquid which interacts with the streamer head to generate additional radicals. The device can either be used to cause fast chemical reaction within the discharge gap or the generated radical gas can be removed for utilization outside the discharge gap.

Abstract: Ozone is generated by directing ambient air through a co-axially oriented cathode and anode. In a preferred embodiment, the outer electrode is a tubular cathode, with the anode disposed about a longitudinal axis therein. The anode is provided with a plurality of vane assemblies, with each individual vane canted at an angle of from about 15° to about 70°, and preferably about 45°, to the planar body of the vane assembly. Air flow is provided either coincident with the longitudinal axis, or tangentially thereto.

Abstract: Ozone is generated by directing ambient air through a co-axially oriented cathode and anode. In a preferred embodiment, the outer electrode is a tubular cathode, with the anode disposed about a longitudinal axis therein. The anode is provided with a plurality of vane assemblies, with each individual vane canted at an angle of from about 15° to about 70°, and preferably about 45°, to the planar body of the vane assembly. Air flow is provided either coincident with the longitudinal axis, or tangentially thereto.