Abstract
Electron-beam irradiation has been shown to be a clean, efficient, and effective technique for treating a variety of contaminants in a variety of media. In particular, the ionizing radiation produced by an electron beam can effectively decontaminate wastewater and aid in removing harmful chemicals from industrial flue gas. In this paper, we investigate a novel technique for waste treatment using an electron-beam system in which an (approximately) annular beam converges radially into the treatment volume. We provide preliminary system-level analysis of the design of a radial electron gun, and we discuss hypothetical system constructs in which a radial electron gun is used for treatment of flue gas and wastewater. We derive dose uniformity, throughput rates, and other important treatment parameters for each application. Our results suggest that a lower-energy system with a large-radius cylindrical treatment volume is preferable for flue gas treatment, whereas a higher-energy system with an annular treatment volume is better-suited for wastewater treatment.
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