Possibility of micro bubbles as a chemical reactor and its applications

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K05781
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Fluid engineering
• Research Institution: University of Tsukuba
• Principal Investigator: KANEKO AKIKO 筑波大学, システム情報系, 准教授 (40396940)
• Co-Investigator(Kenkyū-buntansha): 阿部 豊 筑波大学, システム情報系, 教授 (10241720)
• Co-Investigator(Renkei-kenkyūsha): TAKEMURA FUMIO 産業技術総合研究所, エネルギー環境部門省エネルギー研究部門, 研究部門長 (20313041)
• Research Collaborator: ARAI YOSHIHIRO 筑波大学, 大学院システム情報工学研究科 ; INOUE YUZO 筑波大学, 大学院システム情報工学研究科 ; FUJII KEITA 筑波大学, 大学院システム情報工学研究科
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: マイクロバブル / ベンチュリ管 / 環境負荷低減 / レジスト除去技術 / 濁水除去技術 / ゼータ電位

Outline of Final Research Achievements

In order to remove photoresist using ozone, research on cleaning effect of Venturi tube ozone microbubbles was carried out. It was strongly influenced by flow velocity and ozone water concentration. This system has about 2 to 4 times higher washing rate than existing method.
The atomization of the coagulant and the effect of the turbid water treatment when flowing water, air and coagulant in the Venturi tube was investigated. By passing through the Venturi tube, atomization of the coagulant was realized. Transport of coagulant showed the effect of bubbles generated by the Venturi tube. Furthermore, the possibility that the zeta potential between bubbles, flocculants, and earth and sand acts properly may have an effect on the treatment of turbid water.

Free Research Field

混相流工学