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http://dx.doi.org/10.5762/KAIS.2017.18.6.558

Development and Performance Evaluation of Hydroxyl Radical Generator using Electron Emission Type High Voltage and Low Current Discharger  

Kang, Hyung-Sub (Department of Pharmacology, College of Veterinary Medicine, Chonbuk National University)
Hong, Young-Pyo (Groon Co.,Ltd.)
Lee, In-Ho (Groon Co.,Ltd.)
Kim, Gi-Beum (Institute of Jinan Red Ginseng)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.18, no.6, 2017 , pp. 558-566 More about this Journal
Abstract
In this study, we developed an electron-emission OH radical generator for waste water treatment. The stability of the circuitry was ensured by implementing stable pulse waves with a MOSFET and reducing the momentary current rise. The OH radical generator uses a high-voltage and low-current discharger. The performance of the device was evaluated experimentally, which showed that it is possible to produce a stable and uniform pulse waveform for the drain current of the power MOSFET, which is connected to the input side of an AC multiplying converter through negative feedback circuitry with CR-snubber architecture. It was also possible to reduce the excitation current of the converter and improve the stability of the oscillation circuit. In addition, the generator can generate hydroxyl radicals stably. The bactericidal activities were also evaluated, and the germicidal power for E. coli, S. aureus, and S. flexneriwas improved by 99.9% or more after 60 minutes.
Keywords
evaluating bactericidal activities; high voltage and low current discharger; MOSFET; OH radical; pulse wave;
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