水柱電極を用いた誘電体バリア放電による色素の脱色に対する導電率の影響

カテゴリ: 論文誌(論文単位)

グループ名: 【A】基礎・材料・共通部門

発行日: 2023/04/01

タイトル(英語): Effect of Conductivity on Dye Decolorization by Dielectric Barrier Discharge Using a Water Column Electrode

著者名: 高橋　達也（愛媛大学大学院理工学研究科），弓達　新治（愛媛大学大学院理工学研究科），尾崎　良太郎（愛媛大学大学院理工学研究科），門脇　一則（愛媛大学大学院理工学研究科）

著者名(英語): Tatsuya Takahashi (Graduate School of Science and Engineering, Ehime University), Shinji Yudate (Graduate School of Science and Engineering, Ehime University), Ryotaro Ozaki (Graduate School of Science and Engineering, Ehime University), Kazunori Kadowaki (Graduate School of Science and Engineering, Ehime University)

キーワード: 水処理，誘電体バリア放電，インジゴカルミン，水柱電極，導電率　　water treatment，dielectric barrier discharge，indigo-carmine，water column electrode，conductivity

要約(英語): This paper presents a new plasma treatment system for decomposition of organic compounds in polluted water with high conductivity. The polluted water is normally set between two metal electrodes as a dielectric layer, but it is used as a grounded column electrode in the new treatment system. When the water column coming out of a grounded nozzle is close to an aluminum rod electrode covered by a glass tube subjected to an ac high voltage, a dielectric-barrier-discharge (DBD) occurs at the air gap between the water column and the glass. Since the DBD current flows along the water column electrode, the discharge current increase with increasing the conductivity of water. The decomposition of a blue dye in a high-conductive solution including with NaCl or MgSO4 is carried out. Experimental results show that the DBD occurs steadily and can decolorize indigo-carmine even when the conductivity of the solution was varied in the range of 0.1 mS/cm to 30 mS/cm. Simulation of power consumption in an equivalent circuit model also show that the higher-conductive solution over 30 mS/cm is also decolorized by DBD with the water column electrode.

本誌: 電気学会論文誌A（基礎・材料・共通部門誌） Vol.143 No.4 （2023） 特集：2022年基礎・材料・共通部門大会

本誌掲載ページ: 123-128 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejfms/143/4/143_123/_article/-char/ja/