水中酸素気泡内直流プラズマによる有機フッ素化合物の分解

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: 2012/09/01

タイトル(英語): Decomposition of Perfluorinated Compounds in Water by DC Plasma within Oxygen Bubbles

著者名: 林　竜一（東京工業大学 電気電子工学専攻），大保　勇人（東京工業大学 電気電子工学専攻），竹内　希（東京工業大学 電気電子工学専攻），安岡　康一（東京工業大学 電気電子工学専攻）

著者名(英語): Ryuichi Hayashi (Department of Electrical and Electronic engineering, Tokyo Institute of Technology), Hayato Obo (Department of Electrical and Electronic engineering, Tokyo Institute of Technology), Nozomi Takeuchi (Department of Electrical and Electronic engineering, Tokyo Institute of Technology), Koichi Yasuoka (Department of Electrical and Electronic engineering, Tokyo Institute of Technology)

キーワード: 気泡内直流プラズマ，ペルフルオロオクタン酸，ペルフルオロオクタンスルホン酸　　DC plasma within bubbles，PFOA，PFOS

要約(英語): Complete decomposition of perfluorooctanoic acid (PFOA) at a concentration of 41.4mg/L and perfluorooctane sulfonate (PFOS) at a concentration of 60mg/L in water was successfully demonstrated by DC plasma within oxygen bubbles. PFOA and PFOS were decomposed completely after 3-hour operation and 8-hour operation, respectively. The decomposition efficiency was evaluated by measuring the amounts of fluorine ions which were detached from PFOA or PFOS in the solution. From the measurement of LC/MS, the main by-products generated during the plasma treatment turned out to be perfluorocarboxylic acids. For the practical application, 2-parallel operation of DC plasma was also demonstrated as a basic technology for a large capacity reactor. The decomposition efficiency of 2-parallel operation was at the same level as that of single operation.

本誌: 電気学会論文誌A（基礎・材料・共通部門誌） Vol.132 No.9 （2012） 特集：テラヘルツ波

本誌掲載ページ: 767-772 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/132/9/132_767/_article/-char/ja/