Terasaka, Koichi

写真a

Affiliation

Faculty of Science and Technology, Department of Applied Chemistry (Yagami)

Position

Professor

Related Websites

External Links

Profile Summary 【 Display / hide

  • マイクロバブルおよびウルトラファインバブルの化学反応器への応用

Career 【 Display / hide

  • 1986.04
    -
    1987.05

    旭硝子株式会社, 鹿島工場化学品製造部有機課

  • 1991.04
    -
    1992.03

    鐘淵化学工業株式会社, 生産技術研究所, 研究員

  • 1992.04
    -
    1995.03

    慶應義塾大学理工学部, 応用化学科, 助手

  • 1995.04
    -
    2000.03

    慶應義塾大学理工学部, 応用化学科, 専任講師

  • 1995.09
    -
    1996.08

    Technical University Braunschweig(ドイツ), Guest Professor

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Academic Background 【 Display / hide

  • 1984.03

    Keio University, Faculty of Engineering, 応用化学科

    University, Graduated

  • 1986.03

    Keio University, Graduate School, Division of Engineering, 応用化学専攻

    Graduate School, Completed, Master's course

  • 1991.03

    Keio University, Graduate School, Division of Science and Engineeri, 応用化学専攻

    Graduate School, Completed, Doctoral course

Academic Degrees 【 Display / hide

  • 工学修士, Keio University, Coursework, 1986.03

  • 工学博士, Keio University, Coursework, 1991.03

Matters concerning Career Achievements 【 Display / hide

  • 2011.12

    マイクロバブルの食品工学への応用

  • 2014.11

    第6回ファインバブル技術講習会 オーガナイザー

     View Details

    「ファインバブル技術の最新動向と計測技術の実演」

 

Research Areas 【 Display / hide

  • Properties in chemical engineering process/Transfer operation/Unit operation (Chemical Engineering in General)

Research Keywords 【 Display / hide

  • ファインバブルサイエンス

  • 気泡・液滴分散工学

Research Themes 【 Display / hide

  • Application of microbubbles for chemical process and reactors, 

    2001
    -
    Present

Proposed Theme of Joint Research 【 Display / hide

  • マイクロバブルの化学反応装置への応用・性能評価・実用化

    Interested in joint research with industry (including private organizations, etc.),  Desired form: Technical Consultation, Funded Research, Cooperative Research

 

Books 【 Display / hide

  • ファインバブル入門

    Koichi Terasaka Shozo Himuro, Keita Ando, Takashi Hata, 日刊工業新聞社, 2016.11

  • 気泡・分散系現象の基礎と応用

    Terasaka Koichi, 三恵社, 2016.10

    Scope: 58-76

  • 流体移動解析

    Koichi Terasaka, 朝倉書店, 2011.10

    Scope: 71-74

  • マイクロバブル・ナノバブルの最新技術II

    Koichi Terasaka, シーエムシー出版, 2010.05

    Scope: 145-150

  • 「マイクロ・ナノバブルとソノプロセス」 -いろいろ使える「微細泡」の驚異の作用-

    Koichi Terasaka, (株)ティー・アイ・シィー, 2010.05

    Scope: 265-274

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Papers 【 Display / hide

  • Microbubble generation with rapid dissolution of ammonia (NH3)-hydrogen (H2) mixed gas fed from a nozzle into water

    T. Kobayashi, S. Fujioka, S. Tanaka, K. Terasaka

    Chemical Engineering Science 248 2022.02

  • Unique properties of fine bubbles in the electrochemical reduction of carbon dioxide using boron-doped diamond electrodes

    Tomisaki M., Natsui K., Fujioka S., Terasaka K., Einaga Y.

    Electrochimica Acta (Electrochimica Acta)  389 2021.09

    ISSN  00134686

     View Summary

    The electrochemical CO2 reduction on boron-doped diamond (BDD) electrodes in an aqueous solution with fine bubbles was studied. The overpotential decreased and the production of carbon monoxide was promoted in the CO2 reduction with fine bubbles compared to that without fine bubbles. It is suggested that fine bubbles in solution could facilitate the mass transport and also act as the catalyst for producing carbon monoxide. Potential-dependent in-situ attenuated total reflectance-infrared (ATR-IR) measurements confirmed the catalytic activity, showing that in solutions with CO2 fine bubbles the CO2•– intermediate or the CO2 molecules themselves become stabilized near the electrode and these can be adsorbed on the electrode surface more easily compared to using solutions without CO2 fine bubbles. The reported work is a first step in understanding the effects of fine bubbles in CO2 reduction reactions.

  • Destabilization of ultrafine bubbles in water using indirect ultrasonic irradiation

    Tanaka S., Kobayashi H., Ohuchi S., Terasaka K., Fujioka S.

    Ultrasonics Sonochemistry (Ultrasonics Sonochemistry)  71 2021.03

    ISSN  13504177

     View Summary

    © 2020 The Authors Ultrafine bubble (UFB) is a bubble with a diameter of less than 1 μm. Little attention has been paid to the defoaming and removal of UFBs. This study proposes a method to destabilize UFBs by using indirect ultrasonic irradiation. Besides, the destabilization mechanism of UFB was investigated. The ultrasonic frequency was 1.6 MHz and the dissipated power was 30 W. UFB dispersions were prepared using two different types of bubble generators: pressurized dissolution method and swirling liquid flow method. The effects of ultrasonic irradiation on the stability of UFBs were evaluated by particle tracking analysis (PTA) and electrophoretic zeta potential measurement. Results showed that the indirect ultrasonic irradiation for 30 min reduced the number concentration of UFBs by 90% regardless of the generation method. This destabilization was attributed to a decrease in the magnitude of zeta potential of UFBs due to the changes in pH and electrical conductivity. These changes in the electrochemical properties were caused by the formation of nitric acid. To study the destabilization mechanism, the pH of the UFB dispersions were modified by titration; the chemical and mechanical effects of ultrasound were separately examined. It was found that not only the chemical effect caused by the formation of nitric acid but also the mechanical effect contributed to the destabilization of UFB. Feasibility studies were also performed for UFBs in an aqueous surfactant solution and UFBs in a solid particle dispersion. The proposed method selectively destabilized UFBs in the solutions.

  • Microbubble enhanced mass transfer efficiency of CO<inf>2</inf>capture utilizing aqueous triethanolamine for enzymatic resorcinol carboxylation

    Ohde D., Thomas B., Matthes S., Tanaka S., Bubenheim P., Terasaka K., Schlüter M., Liese A.

    RSC Advances (RSC Advances)  11 ( 7 ) 4087 - 4096 2021.01

    Research paper (scientific journal)

     View Summary

    The present study focuses on the aeration of aqueous triethanolamine acting as reaction medium for biocatalytic carboxylations. For enhancing mass transfer in a bubble column reactor, microbubble aeration is applied and compared to conventional macrobubble aeration. Application of a 0.5 μm porous sparger enables microbubble CO2 aeration with bubble size distributions below 150 μm in Sauter mean diameter, correlating with the highest measured mass transfer rates. During CO2 saturation of the aqueous triethanolamine, bubble size distributions changed according to the level of CO2 saturation. For microbubbles, less foaming was observed compared to macrobubble aeration by a 10 μm porous sparger. This microbubble effect is attributed to their accelerated dissolution assisted by the Laplace pressure lowering the amount of bubbles reaching the surface of the liquid. The experiments reveal that the rate of interfacial area generation, which is calculated based on measured bubble size distributions, influences the biocatalyst activity.

  • Comparative investigation of fine bubble and macrobubbleaeration on gas utility and biotransformation productivity

    B, Thomas, D. Ohde, S, Matthes, C. Engelmann, P. Budenheim, K. Terasaka, M. Schlueter, A. Liese

    Biotechnology and Bioengineering (Biotechnology and Bioengineering)  118 ( 1 ) 130 - 141 2021

    Research paper (scientific journal), Joint Work,  ISSN  00063592

     View Summary

    The sufficient provision of oxygen is mandatory for enzymatic oxidations in aqueoussolution, however, in process optimization this still is a bottleneck that cannot beovercome with the established methods of macrobubble aeration. Providing highermass transfer performance through microbubble aerators, inefficient aeration canbe overcome or improved. Investigating the mass transport performance in a modelprotein solution, the microbubble aeration results in higher kLa values related to theapplied airstream in comparison with macrobubble aeration. Comparing the aera-tors at identical kLa of 160 and 60 1/h, the microbubble aeration is resulting in 25and 44 times enhanced gas utility compared with aeration with macrobubbles. Toprove the feasibility of microbubbles in biocatalysis, the productivity of a glucoseoxidase catalyzed biotransformation is compared with macrobubble aeration as wellas the gassaving potential. In contrast to the expectation that the same pro-ductivities are achieved at identically applied kLa, microbubble aeration increasedthe gluconic acid productivity by 32% and resulted in 41.6 times higher oxygenutilization. The observed advantages of microbubble aeration are based on the largevolumespecific interfacial area combined with a prolonged residence time, whichresults in a high mass transfer performance, less enzyme deactivation by foamformation, and reduced gas consumption. This makes microbubble aerators favor-able for application in biocatalysis.

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Papers, etc., Registered in KOARA 【 Display / hide

Reviews, Commentaries, etc. 【 Display / hide

  • 次代を拓く!産業イノベーションセミナーを開催

    Terasaka Koichi

    神戸商工だより (神戸商工会議所)   ( 725 ) 13 - 13 2015.10

    Introduction and explanation (commerce magazine), Single Work

  • Leading Edge in Fine Bubble Technology

    Terasaka Koichi

    Journal of the Japan Institute of Energy (The Japan Institute of Energy)  93 ( 11 ) 1022 - 1024 2014.11

    Introduction and explanation (scientific journal), Single Work

  • ファインバブル技術のトレンドと課題

    Terasaka Koichi

    化学工学 (化学工学会)  78 ( 9 ) 580 - 584 2014.09

    Introduction and explanation (scientific journal), Single Work

Presentations 【 Display / hide

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Research Projects of Competitive Funds, etc. 【 Display / hide

  • International R&D of innovative measurement and purification technology that accelerate the development of fine bubble science

    2020.04
    -
    2023.03

    MEXT,JSPS, Grant-in-Aid for Scientific Research, 寺坂 宏一, Grant-in-Aid for Scientific Research (B), Principal Investigator

  • International R & D on Innovative Measurement Technology to Build Fine Bubble Science

    2017.04
    -
    2020.03

    MEXT,JSPS, Grant-in-Aid for Scientific Research, 寺坂 宏一, Grant-in-Aid for Scientific Research (B), Principal Investigator

  • 第2回マルチスケール多相プロセス工学国際シンポジウム

    2014.09

    慶応義塾大学, Keio Gijuku Koizumi Memorial Fund for the Advancement of Education and Research, 寺坂宏一, Research grant, Principal Investigator

  • ファインバブルの機能性解明と産業基盤技術の構築

    2014.04
    -
    2017.03

    日本学術振興会, Grant-in-Aid for Scientific Research, 寺坂宏一, Research grant, Principal Investigator

  • 気泡塔を利用したスマートグリット装置の開発

    2014.04
    -
    2015.03

    Grant-in-Aid for Scientific Research, Research grant

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Works 【 Display / hide

  • 「ザワつく!金曜日」

    寺坂宏一

    テレビ朝日, 

    2021.04

    Other, Single

  • 電子情報技術部会 エレクトロニクス交流会

    寺坂宏一

    新化学技術推進協会, 

    2019.09

    Other, Single

     View Details

    講演会「ファインバブルの基礎と展望」

  • 洗浄総合展

    寺坂宏一

    パシフィコ横浜, 

    2019.09

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    基調講演「ウルトラファインバブル水を用いた床洗浄」

  • ファインバブル技術講習会

    寺坂宏一

    名古屋市工業研究所, 

    2019.08

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    基調講演「ファインバブル技術の進歩と課題」

  • 日本油化学会若手の会 

    寺坂宏一

    ライオン伊豆高原研修センター, 

    2019.08

    Other

     View Details

    講演 「ファインバブルの基礎と応用および研究課題」

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Intellectual Property Rights, etc. 【 Display / hide

  • 2塩化エタンの製法およびそれに用いる装置

    Application No.:   1992.04 

    Announcement No.: 特開平5-262680  1993.10 

    Registration No.: 5-262680 

    Patent, Joint, National application

  • Preparation of dichloroethane and apparatus therefor

    Application No.:   1992.06 

    Announcement No.: EP 0 521 382  1993.01 

    Registration No.: 92110648.0 

    Patent, Joint, PCT international application

  • 単一上昇気泡の3次元形状及び上昇速度の測定法及び測定装置

    Application No.: 特願2003-331836  2003.09 

    Announcement No.: 特開2005-098797  2005.04 

    Registration No.: 特許第4144748  2008.06

    Patent, Single, National application

  • 高粘性液体用気泡分散装置

    Application No.: 特願2004-212836  2004.07 

    Announcement No.: 特開2006-026601  2006.02 

    Registration No.: 特許第3719681号  2005.09

    Patent, Single, National application

  • 炭酸ガス吸収・脱離ベッド

    Application No.: 特願2005-019112  2005.01 

    Announcement No.: 特開2006-205023  2006.08 

    Patent, Single, National application

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Awards 【 Display / hide

  • 日本ソノケミストリー学会第29回特別賞

    田中俊也,小林弘奈,大内静香,寺坂宏一,藤岡 沙都子, 2020.09, 日本ソノケミストリー学会, 超音波間接照射による水中および界面活性剤水溶液中のウルト ラファインバブルの不安定化

    Type of Award: Awards of National Conference, Council and Symposium.  Country: 日本

  • 化学工学会 粒子・流体プロセス部会シンポジウム賞(プレゼンテーション賞)

    澁谷 愛理,寺坂 宏一,藤岡 沙都子, 2020.09, 化学工学会, 超音波刺激を付与したウルトラファインバブル水流によるガラス壁面付着微粒子の除去

    Type of Award: Awards of National Conference, Council and Symposium.  Country: 日本

  • TOP DOWNLOADED PAPER 2018-2019 in Chemie Ingenieur Technik

    Ohde D., Thomas B., Matthes S., Percin Z., Engelmann C., Bubenheim P., Terasaka K., Schlüter M., Liese A. , 2020.05, John Wiley & Sons Pte Ltd, Fine Bubble-based CO2 Capture Mediated by Triethanolamine Coupled to Whole Cell Biotransformation

    Type of Award: Celebration by Official journal of a scientific society or Academic Journal.  Country: Singapore

  • 日本食品工学会優秀ポスター発表賞

    藤岡沙都子、栗山志緒里、寺坂宏一、川口勇太郎、竹内秀和、後藤雅広, 2015.08, 日本食品工学会, CFDシミュレーションを用いた乳化用スタティックミキサーの開発

    Type of Award: Awards of National Conference, Council and Symposium.  Country: 日本

  • 日本食品工学会第16回年次大会優秀ポスター発表賞

    藤岡沙都子, 栗山志緒里, 寺坂宏一, 川口勇太郎, 竹内秀和, 後藤雅広, 2015.08, 日本食品工学会, CFDシミュレーションを用いた乳化用スタティックミキサーの開発

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Courses Taught 【 Display / hide

  • SEMINAR IN APPLIED CHEMISTRY

    2021

  • LABORATORIES IN APPLIED CHEMISTRY A

    2021

  • INDEPENDENT STUDY ON SCIENCE FOR OPEN AND ENVIRONMENTAL SYSTEMS

    2021

  • GRADUATE RESEARCH ON SCIENCE FOR OPEN AND ENVIRONMENTAL SYSTEMS 2

    2021

  • GRADUATE RESEARCH ON SCIENCE FOR OPEN AND ENVIRONMENTAL SYSTEMS 1

    2021

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Courses Previously Taught 【 Display / hide

  • 反応装置工学

    Keio University, 2015, Autumn Semester, Major subject, Lecture, Within own faculty, 1h, 13people

  • 応用化学計算基礎

    Keio University, 2015, Autumn Semester, Major subject, Laboratory work/practical work/exercise, Within own faculty, 1h, 60people

  • 応用化学実験A

    Keio University, 2015, Spring Semester, Major subject, Laboratory work/practical work/exercise, Within own faculty, 3h, 160people

  • 化学工学演習

    Keio University, 2015, Spring Semester, Major subject, Seminar, Within own faculty, 1h, 160people

  • 化学工学

    Keio University, 2015, Spring Semester, Major subject, Lecture, Within own faculty, 1h, 160people

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Educational Activities and Special Notes 【 Display / hide

  • 慶応大・応化短期海外派遣プログラム TU-HHサマースクール(ドイツ・ハンブルク)

    2015.09

    , Special Affairs

  • オープンキャンパス

    2015.08
    -
    Present

    , Special Affairs

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    寺坂研究室が慶應義塾大学理工学部のオープンキャンパスで、「マイクロバブルゲルを使ったケミカルデリバリー」のテーマで高校生むけに研究室公開

  • 慶応大・応化短期海外派遣プログラム TU-HHサマースクール(ドイツ・ハンブルク)

    2014.06

    , Special Affairs

 

Social Activities 【 Display / hide

  • DFG

    2017.02
    -
    Present
  • The Union of Fine Bubble Scientists and Engineers

    2015.04
    -
    Present

     View Summary

    「ファインバブル」に関連する学協会内の専門家組織(部会、分科会、研究会、工業会など)を横断的に提携し、それぞれの科学技術研究開発活動に関する情報交換を密接に行う拠点およびコミュニティを担う

  • ファインバブル産業会

    2013.03
    -
    Present
  • Fine Bubble Association

    2012.09
    -
    2012.11
  • Fine Bubble Association

    2012.07
    -
    Present

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Memberships in Academic Societies 【 Display / hide

  • The Union of Fine Bubbles, 

    2015.04
    -
    Present
  • 日本混相流学会 混相流技術リエゾン専門委員会 マイクロバブル・ナノバブルの標準化への道筋を検討するWG, 

    2011.09
    -
    2013.02
  • 日本混相流学会, 

    2010.12
  • 化学工学会リエゾン委員会 学情報リエゾンチーム, 

    2010.04
    -
    Present
  • 日本ソノケミストリー学会, 

    2009.10
    -
    Present

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Committee Experiences 【 Display / hide

  • 2021.04
    -
    Present

    総務委員会委員, ファインバブル産業会

  • 2021.04
    -
    Present

    戦略企画委員会委員, ファインバブル産業会

  • 2021.04
    -
    Present

    技術委員会委員, ファインバブル産業会

  • 2021.04
    -
    Present

    ブランド確立委員会委員, ファインバブル産業会

  • 2020.05
    -
    2023.04

    理事長, ファインバブル学会連合

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