302 水中プラズマによる染料液の脱色とその機構の検討(水域環境保全技術,大気・水環境保全技術)

概要

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In recent years, the new technology on pulse power has been developed. It is based on the method to generate a very high voltage easily by impressing the voltage of the pulse in ultra short time. As a result, the pulse power can induce the plasma state in one-pressure air, which is called pulsed corona. The decompositions of greenhouse gases and exhaust gases have been tried by the pulse power. On the other hand, it is also possible to induce the discharge in water by the direct current pulse power supply and to obtain steady plasma. In the present study, we have attempted the decoloration of dyestuff liquid, and have examined transformation of water by the discharge with electronic spin resonance measurement (ESR). The authors have found that there has not been hydroxyl radical so soon as the plasma has disappeared. But, after plasma treatment in water, the generation of hydrogen peroxide has been found because hydroxyl radical has been detected at added iron (II) sulfate. When dye solution has been treated by plasma in water, hydroxyl radical have been formed and then have been decolored in the presence of iron (II) sulfate.
一般社団法人日本機械学会の論文
2007-07-18