What is a fine bubble？
"Fine bubble" is the scientific terminology of tiny bubble officially defined by the International Organization for Standardization (ISO). There are two types of fine bubbles, which are classified into "microbubble" with a diameter of 1 micron or more and less than 100 microns and "ultrafine bubble" smaller than the microbubbles. Since both the microbubbles and the ultrafine bubbles have different characteristics, we are being used all over the world depending on the unique application.
What's New
Autumn Seminar by K. Nakajima(M1), Kayo Kuchta(TUHH) and Florian Roloff (TU Dresden) was held at Discussion Room 4 in Yagami Campus of Keio University.
International Conference Nanobubble2024 held at Uji Ohbaku Plaza in Uji Campus of Kyoto University, Prof. Dr. Terasaka gave a keynote lecture "Generation, concentration and separation of ultrafine bubbles in water."
Note that "Nanobubble" is not an officially recognized term by ISO. The official international standard is "Ultrafine bubble."
GLS-16 held in Dresden, Germany,
Prof. Dr. Terasaka presented "Removal and concentration of air ultra-fine bubbles in ultra-pure water by filtration."
Prof. Ph.D. Adam Donaldson(Guest Professor(International)) presented "Concurrent 2-phase flow within a "bubble-can" geometry."
Lotta Kursula (TUHH) (coauthor:Prof. Dr. Terasaka, S. Takagi(TUHH), Prof. Dr.-Ing. Michael Schlueter(Guest Professor (International))) presented "Experimental study of microscopic mass transfer phenomena of single fine bubbles."
H. Hirase (M2) and Jan Maarten Braack (TUHH) presented "Generation of ultra-fine bubbles by poor-solvating air-dissolved ethanol with high-speed shaking" as a poster.
A. Hirata (M2) presented "Synthesis of silica fine particles using liquid-liquid slug flow in a mini channel" as a poster.
R. Shindo (M2) presented "Effects of Storage Temperature and Solute Composition on Temporal Change of Number Concentration of Ultra-fine Bubbles in Aqueous Solution" as a poster.
D. Funayama (M2) presented "Development of compact device to measure the rheological properties of non-Newtonian fluids by using a pressure difference" as a poster.
Y. Yagi (M2) presented "Optimization of oscillation conditions when using the Oscillatory Baffled Reactor for mixing in highly viscous fluids or gas absorption" as a poster.
Lotta Kursula and S. Takagi (TUHH) presented "Novel experimental set-up for studies of microscopic transport phenomena at gas-liquid interfaces" as a poster.
Prof. Dr. Terasaka and Assoc. Prof. Dr. Fujioka visited Prof. Dr.-Ing. Schuebert of the Dresden University of Technology in Germany to plan international collaborative research and student exchanges.
The website for "The 5th International Symposium on Multiscale Multiphase Process Engineering (MMPE2025)" chaired by Prof. Dr. Terasaka and Prof. Dr.-Ing. Schlueter, has been released.
Prof. Dr. Terasaka and Prof. Ph.D. Adam Donaldson (Guest Professor(International)) gave lectures, K. Nakajima (M1) gave a presentation on international collaborative research at Dalhousie University in Halifax, NS, Canada.
8th International Symposium on Plasmas & Fine Bubbles（ISPFB2024) held at Tongji University in Shanghai, Prof. Dr. Terasaka gave a remote invited keynote lecture "Generation mechanism of ultrafine bubbles in water, and the development of transport, concentration and removal technologies."
Summer Seminar 2024 by Jan Maarten Braack(TUHH） was held at Discussion Room 3 in Yagami Campus of Keio University.
Spring Lecture by S. Takagi(M1) was held at Seminar Room 3 in Yagami Campus of Keio University.
CRC Project "SMART Reactors" Monthly Meeting held at TUHH, Prof. Dr. Terasaka presented "Intoroduction to Fine Bubble Technology."
The WG3 committee of the 19th ISO/TC 281 Meeting held in Hawaii, USA, Prof. Dr. Terasaka proposed the ISO standard.
The 19th International Symposium on Fine Bubble Technology held at University of Hawaii in Manoa, Hawaii, USA, Prof. Dr. Terasaka presented "Useful Handling Technology of Fine Bubbles for Industrial Use."
The 12th International Conference on Separation Science and Technology held at Okinawa Shichoson Jichikaikan in Japan,
E. Omata (M1) presented "Membrane Separation of Air Ultra-fine Bubbles in Ultrapure Water."
H. Hirase (M1) presented "Separation of dissolved air in ethanol as ultra-fine bubbles by poor-solvating with high-speed shaking."
Autumn Mini-lecture held in Yagami Campus of Keio University, Dr. Daniel Ohde of University of Hamburg(Institute of Technical Biocatalysis) in Germany who is visiting Japan had lectures “Reaction Sequences for Future Bioprocesses."
Benjamin Rahimian (Hamburg University of Technology, Institute of Multiphase Flows) presented the results of his research over the four months.
The 1st Chemical Engineering Summer Workshop in Yagami Campus of Keio University, Prof. Donaldson of Dalhousie University in Canada who is visiting Japan as an overseas Associate Professor at Keio University, had lectures.
The 7th International Symposium on Plasma & Fine Bubbles to Agriculture and Aquaculture held at Iwate University in Japan, K. Nakajima (M1) presented "Supply of ultrafine bubble water through long pipelines to vast agricultural areas."
The 11th International Conference on Multiphase Flow held at Kobe International Conference Center in Japan,
Prof. Dr. Terasaka presented "Ultrafine bubble generation in condensate of steam accompanying with gas."
N. Ikeda (D3) presented "An in-situ method for determining rheological properties of non-Newtonian fluids flowing in a circular cylinder by measuring pressure drop."
Assoc. Prof. Dr. Fujioka presented "P13 Hydrodynamics of liquid-liquid slug flow in circular channels: The effects of fluid properties and channel geometries"as a poster.
K. Nakajima (M1) presented "P2 Ultrafine bubble loss in water passing through a long plastic tube"in collaboration with Prof. Donaldson as a poster.
Spring Lecture by Prof. Michael Schlueter of Hamburg University of Technology, Germany, was held at Seminar Room 3 in the Yagami Campus.
The 7th International Conference on the Characterization and Control of Interfaces for High Quality Advanced Materials held at Highland Resort Hotel & Spa in Japan,
Assoc. Prof. Dr. Fujioka presented "Hydrodynamics of liquid-liquid slug flow in mini-channels and its application for fine particle production."
N. Ikeda (D2) presented "Development of in-line measuring method of rheological properties for non-Newtonian fluids."
4th International Symposium on Multiscale Multiphase Process Engineering was held at H4 Hotel Berlin Alexanderplatz in Germany.
Prof. Dr. Terasaka presented "Batch generation of ultrafine bubbles in water by rapid condensation of steam and gas mixture."
Assoc. Prof. Dr. Fujioka presented "Effect of various operating conditions on the internal circulation of liquid-liquid slug flows."
N. Ikeda (D2) presented "Continuous measurement of rheological properties of non-Newtonian food fluids by using a pressure difference."
R. Asada (M2) presented "Effect of Viscosity on Microbubble Generation from a Horizontally Vibrating Nozzle."
M. Iwasaki (M2) presented "Synthesis of silica fine particles using liquid-liquid slug flow in a mini channel."
D. Nomoto (M2) presented "Continuous crystallization of glycine using milli-scale gas liquid slug flow."
E. Fujita (M1) presented "Optical evaluation for ultrafine bubble cleaning of contamination in a flow channel."
M. Ishimaru (M1) presented "Ultrafine bubble concentrating in residual water by evaporation or slow-progressive freezing."
K. Taguchi (M1) presented "Continuous generation of ultrafine bubble water by rapid condensation of steam and non-condensable gas mixture."
The Asian Pacific Confederation of Chemical Engineering 2022 held at Kuala Lumpur Convention Centre in Malaysia,
Assoc. Prof. Dr. Fujioka presented "SCEJ’s actions in line with the Sapporo Declaration for achieving the SDGs."
And Sustainable Development Goal (SDG) Special Symposium, S. Takagi (B4)'s group received Best Proposal Award -Gold prize .
15th International Conference on Gas–Liquid and Gas–Liquid–Solid Reactor Engineering held at University of Ottawa in Canada,
Prof. Dr. Terasaka presented "Ultrafine bubble generation by rapid condensation of mixed vapor of non-condensable gas and steam."
Assistant Professor Fujioka was promoted to Associate Professor in Keio University.
The 10th International Symposium on Mixing in Industrial Process held as a virtual conference, Asst. Prof. Fujioka presented "Prediction of the Bubble Size Distribution and the Mass Transfer Coefficient for an Aerated Stirred Tank" as poster.
Prof. Dr. Terasaka wrote a book entiled "Ultrafine Bubbles" with Dr. Yausi, Dr. Kanematsu and Dr. Aya from Jenny Stanford Publishing.
5th International Symposium on Application of High-voltage Plasma Micro/Nano (Fine) Bubbles to Agriculture, Aquaculture and Food Safety held on the web, Prof. Dr. Terasaka presented "Advances in basic treatment technology for ultrafine bubble water - Storage, transportation, concentration, dilution and removal -" as the Plenary Speaker.
S. Harada(M2) gave a Webex lecture on his study abroad experience at Dalhousie University in Canada.
Y. Yamamoto (M2) gave a Webex lecture on her study abroad experience at Hamburg University of Technology in Germany.
Co-authored paper by the DFG Fine Bubble Project Team (TUHH and Terasaka Lab.) ｗas selected for "TOP DOWNLOADED PAPER 2018-2019" by Chimie Ingenieur Technik of Wiley.
D. Ohde, B, Thomas, S, Matthes, Z. Percin, C. Engelmann, P. Budenheim, K. Terasaka, M. Schlueter, A. Liese:
"Fine Bubble-based CO2 Capture Mediated by Trithanoamine Coupled to Whole Cell Biotransformation"
10th Anniversasty of Institute of Multiphase Flows held in TUHH, Prof. Dr. Terasaka presented "Japanese-German Joint Research on MMPE."
Okinawa Colloids2019 held in Okinawa, Japan,S. Tanaka (D2) presented "Effect of storage temperature on the colloidal stability of ultrafine bubbles in pure water."
Second International Workshop on the Applications of Fine and Ultrafine Bubbles held in Halifax, NS, Canada, Prof. Dr. Terasaka presented "An Intoroduction to Fine Bubble Applcations," K, Yamazaki (M2) presented "Ultrafine bubble formation by spray injection from pressurized container," Y. Naruse (M1) presented "Separation, dilution and concentration of ultrafine bubbles in water," S. Harada (M2) presented "Ultrafine Bubble Stability During Aquaculture Nutrient Distribution."
69th Canadian Chemical Engineering Conference held in Halifax, NS, Canada, S. Harada（M2) presented "Ultrafine Bubble Stability During Aquaculture Nutrient Distribution."
18th Asian Pacific Confederation of Chemical Engineerin Congress(APCChE2019) held in Sapporo, Japan, R. Aoki (M2) presented "Flow pattern analysis of self-induced sloshing due to bubble flow in a rectangular vessel." Y. Noguchi(M2) presented "Experimental investigation of gas slug shrinking behaviourinside a microchannel," R. Nishio(M2) presented "Inhibitory effect on oxygen diffusion in hydrogel including microbeads."
Matthes Simon（TUHH) presented "Influence of Microbubble Aeration on Hydrodynamics and Mass Transfer in a Lab Scaled Stirred Tank Reactor."
14th International Conference on Gas-Liquid and Gas-Solid-Liquid Reactor Engineering (GLS-14) was held in Guilin on 2nd June 2019, China.
At Session 4A: Heat and Mass Transfer in Multiphase Systems, S. Tanaka（D2) presented "(Paper 167) Mass Transfer from Freely Rising Microbubbles in Aqueous Solutions of Surfactant or Salt."
6th International Workshop on Process Intensification was held at National Taiwan University in Taipei.
K. Mizuno(M2) presented "Dissolution Behavior of a Single MicrobubbleAccumulating Dissolved Gas Around Its Surface," M. Nakamura(M2) presented "Generation of Ultrafine Bubbles by Ultrasonic Irradiation into Water Dissolving Air," M. Baba(M2) presented "Hydrogen Microbubble Generation by Fast Dissolution of Accompanying Ammonia Gas."
Prof. Dr. Terasaka presented "Measurement of Fine Bubbles and Progress of Fine Bubble Applications" as a prenery lecture at Keio University on Oct 26 2018.
First Workshop on the Applications of Fine and Ultrafine Bubbles was held at Dalhousie University in NS, Canada.
Prof. Dr. Terasaka, Asst. Prof. Fujioka , S. Tanaka(D1), K. Mizuno(M2)、R. Hiroi(M2), S. Harada(M2), Y. Noguchi(M2/TUHH) and T. Shomura(M1/DAL) presented.
3rd International symposium on Application of High-voltage, Plasma & Micro/Nano Bubble (Fine Bubble) to Agriculture and Aquaculture (3rd ISHPMNB) held in Iwate University, Riho Sekimizu Hiroi(M2) presented "Promotion of Barley Germination for German Beer Brewing with Ultrafine Bubble Wate."
Prof .Dr. Terasaka presented a prenery lecture "Fine Bubble Science Consortium of Universities in Japan, Germany and Canada" at the 10th International Fine Bubble Symposium held in Tokyo University
10th World Congress of Chemical Engineering (WCCE2017) held in Barcelona, Spain, Mt. T. Tsuji presented "Predicting bubble size distributions in gas-liquid stirred tank by using breakage model for single bubble" as a poster.
Mr. Y. Noguchi presented "Development of large-capacity DDS carriers releasing by heat for industrial process" as an oral.
14th International Conference on Multiphase Flow in Industrial Plant (MFIP2017) held at Desenzano del Garda in Italy, Mr. K. Sudo presented "Contribution of Oxygen Absorption from Free Surface in Aeration Tank" and Dr. K. Shibata (Sanki Industry) presented "Oxygen Transfer and Gas Holdup of an Aeration Tank."
13th International Conference on Gas–Liquid and Gas–Liquid–Solid Reactor Engineering (GLS-13) held at Crawne Plaza Hotel La Palace, Brussels, Belguim, Mr. H. Yoda presented "Separation of ultrafine bubbles from water by slow freezing-melting" as a poster.
Mr. S. Tanaka presented "Mass transfer from a fast shrinking microbubble containing N2 and/or O2 into water" as an oral session.
Mr. T. Shigehisa presented "Mass transfer during a gas dissolution process around a stationary single microbubble" as an oral session.
The news of MMPE2017 in Toyama, Japan, was released in the web news of DFG Tokyo Office.
Prof. Dr. Terasaka became a Visiting Professor on Dalhousie University in Halifax, NS, Canada
Japanese-German Mini-Seminar held in Yagami Campus of Keio University, Prof. Schlueter of TUHH in Hamburg and Prof. Krull of TUBS in Braunschweig had lectures.
3rd Internatoinal Symposium on Multiscale Multiphase Process Engineering held in Toyama, Japan, Prof. Dr. Terasaka organized as a Chair.
Asst. Prof. Fujioka had a lecture "Prediction of Pressure Drop of Liquid-Liquid Slug Flow in Milli-channels." Mr. S. Tanaka presented "Fast mass transfer from a single shrinking microbubble into water" as a poster, and then he received The Outstanding Poster Award.
Prof .Dr. Terasaka had a seminar as "Introducion to fine bubble technology" in Institute of Biocatalytic Engineering in TUHH.
Prof .Dr. Terasaka presented a prenery lecture at the 8th International Fine Bubble Symposium held at the North Building in Mita Campus of Keio University, sponsored by FBIA and the Terasaka Laboratory
Prof. Dr. Terasaka had a seminar as "Introducion to fine bubble technology" in Institute of Multiphase Flows in TUHH.
Prof. Dr. Terasaka had a seminar hosted by Prof. Schumpe as "What is fine bubble technology?" in Department of Chemical Engineering, Technical University of Braunschweig, Germany.
2016.10/25 Prof. Dr. Terasaka visited Prof. Krull at the Department of Biotechnology, Technical University of Braunschweig and Prof. Bonjes at the Department of Pharmaceutical Engineering.
International Workshop on Process Intensification 2016 at the Place Aparthotel in Manchester, UK, Mizuha Watanabe (M2) presented "Storage and dilution of ultrafine bubble water," Naoya Yoda (M1) presented "Ultrafine bubble separation from water by slow freezing and melting" and Tomoaki Shigehisa (M1) presented "Generation of High-Concentration Spot by Rapid Gas Dissolution from a Shrinking Single Bubble into Water."
Prof. Dr. Terasaka attended 2nd Symposium on Deep-Sea Oil Spills held at TUHH in Germany.
11th European Fluid Mechanics Conference at Barceló Renacimiento Hotel in Seville, Spain, Motoki Iwakiri (M2) presented a study "Mass Transfer at Shrinking Single Microbubble Rising in Water."
Prof. Dr. Terasaka started a research as a Guest Researcher in Institute of Multiphase Flows in TUHH.
The 9th International Conference on Multiphase Flows in Firenze, Italy, Prof. Dr. Terasaka presented "Microbubble generation from ultrafine bubble water by ultrasonic stimulation" as Poster.
Second International Symposium on Advanced Water Scence and Technology was held in Nagoya University, Japan.
Prof. Dr. Terasaka takled a invited lecture entaitled "Polluted water treatment and cleaning with fine bubble water."
Pacifichem 2015 in Honolulu, Hawaii, at the session of Materials & Nanoscience, Prof. Dr. Terasaka presented a study on "Microbubble generation from gas supersaturated water by ultrasonic stimulation" as a poster.
Asian Pacific Confederation of Chemical Engineering held in Melboure, Australia, Asst. Prof. Fujioka presented a study on "Dissolution and Shrinking Behavior of a Microbubble in a Microchannel," Ami Tanaka (M2) also presented a study on "Separation of Albumin Suspended in Water with Small Bubble Flotation."
Prof. Terasaka and Asst. Prof. Fujioka visited TU-HH with 8 under graduate students.
Crown Crown Plaza City Alster in Hamburg, 2nd International Symposium on Multiscale Multiphase Process Engineering (MMPE2014) was held.
Prof. Terasaka was a Chair ofJapan-side Committee.
Prof. Terasaka spoke a lecture "Applications of Fine Bubble Technology for Industry." Asst. Prof. Fujioka showed "Development of Static Mixer for Emulsification and Dispersion."
Mr. Shibata(D2) showed "Building Up of the CFD Model for Spiral Flow Aeration Tank," Ms. Ooeda(M2) showed "Removal of Egg Yolk Contaminated in Egg White Using Microbubble Flotation," Ms. Kurabe(M2) showed "Reduction of Excess Activated Sludge by Inducing Ozone Microbubbles," Ms Ikeda(M2) showed "Shrinking Microbubble in Microchannel Made of PDMS," Mr. Namai(M2) showed "Development of Bubble Shearing Model to Design Aerated Stirred Tank," Mr. Iwakiri(M1) showed "Production of Hollow Silver Particles Using Microbubbles," Prof. Schlueter showed "Investigation on Defouling of Microfluidic Channels with Ultrafine Bubble Technology" instead of Tzu-Nen.
They presented their studies as posters.
Prof. Dr. Terasaka and Asst. Prof. Fujioka visited TU-HH with 8 under graduate students .
Dr. Fujioka was promoted to Assistant Professor in Keio University.
The 2nd International Symposium on Fine Bubble Technology, Prof. Dr. Terasaka spoke a plenary invited lecture.
Mr. Tzu-Nen Tzeng (TU-HH, Germany) joined as a Visiting Research Student to Terasaka Laboratory in Keio University.
COEX in Korea, at The 11th International Conference on Gas-Liquid &
Gas-Liquid-Solid Reactor Engineering （GLS-11)", Mr. Kanai presented
a lecture as "(C-2) Mass Transfer in Molten Salt and Suspended Molten
Salt in Bubble. Column"
Dr. Fujioka also presented a poster as "Microbubble Formation By Using a Microchannel and Its Shrinking Behavior" at The 19th World Congress of Chemical Engineering.
Internatonal Conference on Multhiphase Flow 2013 in Jeju, Korea, Mr. Shibata presented a poster as "Evaluation of oxygen transfer model in plant scale bubble column."
The International Symposium on Fine Bubble Technology, Prof. Dr. Terasaka spoke a plenary lecture "Fundamentals of Fine Bubble Technology and Its Measuring Techniques and Applications."
The 23rd International Symposium on Transport Phenomena held in University of Auckland, New zealand, Prof. Dr. Terasaka presented a poster "Recovery of Polyphenol in Water Using Microbubble Flotation."
Prof. Dr. Terasaka visited Institute of Multiphase Flow, Technische Universitaet Hamburg-Harburg (Prof. Dr. M. Schlueter).
The 9th International Conference on Separation Science and Technology held in Korea, Dr. Fujioka presented a poster as "Development of multi-slit type submilli-bubbles distributor" and Ms. Orikasa also presented a poster as "Recovery of oil from emulsion using microbubble flotation."
The 20th Annual Meeting of the Japan Society of Sonochemistry & The
International Workshop on Advanced Sonochemistry 2011(IWAS2011), Ms. Mika
Ohata presented her study "Release of the intra-liposomal content
using ultrasaound irradiation and heating" in Poster Session.
Mr. Yusuke Takeuchi also presented his study "Effects of reactor materials on ultrasonic degradation efficiency under indirect irrediation" as a poster.
The 1st International Symposium on Multiscale Multiphase Process Engineering (MMPE2011) held in Kanazawa, Japan, five studies in Terasaka Labo presented as following studies: "Hot CO2 Recovery in Lithium Silicate Slurry Bubble Column" by Mr. Yugo Kanai, "Sucrose Crystallization Utilizing Dissolution and Shrinkage of Microbubbles Generated by Electrolysis" by Mr. Takaaki Murase, "Development of a novel microbubble aerator for waste water treatment using aerobic activated sludge" by Ms. Ai Hirabayashi, "Heat Transfer Characteristics of Gas-liquid Slug Flow in Mini Channel" by Mai Mitsui and "Dynamic Behavior of Microbubbles Irradiated Ultrasound" by Ryota Akutsu.
Ms. Ai Hirabayashi presented "Development of Microbubble Aerator for Waste Water Treatment Using Aerobic Activated Sludge" at The Tenth International Conference on Gas-Liquid and Gas-Liquid-Solid Reactor Engineering (GLS10) in Braga, Portugal.
Dr. Satoko Fujioka presented "Prediction of Hydrodynamics in Bench-Scale Bubble Column Using Commercial CFD Software" as poster.
Prof. Dr. Terasaka presented "Dynamic control of microbubble swarm using ultrasonic irradiation" at The international Chemical Gongress of Pacific Basin Scieties" in Honolulu, USA.
Ms. Hiromi Ninomiya presented her study on "Hydrodynamics in suspended bubble column aerated with highly dense gas" at 2nd Asian Conference on Innovative Energy and Environmental Chemical Engineering in Phuket, Thailand.
Dr. Fujioka visited Technische Universitaet Hamburg-Harburg, Institute of Multiphase Flow supported by Organized Program for Young Researchers to study abroad.
Mr Yoshiyuki Hayashida presented the research "Agglomeration and redistribution of microbubbles using ultrasonic irradiation" at International Conference on Multiphase Flow 2010.
Ms Chiaki Watanabe also presented her study "Generation of microwaterdroplets in oil using condensation of steam bubbles."
Dr. Kobayashi presented "Dynamic Behavior of Microbubbles in Ultrasonic Field" at 8th World Congress of Chemical Engineering in Montreeal, Canada.
In GLS9, alternaive conference of WCCE8, Dr. Kobayashi presented "Dynamic Behavior of Microbubbles in Ultrasonic Field" as well as Mr. Kanai presented "Hot CO2 Recovery Using Lithium Silicate Suspende in Molten Salt" instead of Prof. Dr. Terasaka.
Prof. Dr. Terasaka presented "Mass Transfer from Shrinking Single Microbubble into Electrolytic Aqueous Solution" at 5th International Conference on Diffusion in Solids and Liquids - Mass Transfer, Heat Transfer and Microstructure and Properties in Rome, Italy.
Dr. Kobayashi presented "Agglomeration Mechanism of Microbubbles in Ultrasonic Field" at International Workshop on Process Intensification 2008 in Tokyo Institute of Technology, Oookayama, Japan.
Mr. Ozaki presented "Chemical Gas Absorption of Hot CO2 into Lithium Silicate Particles Suspended in Molten Salt" at The 8th International Conference on Separation Science and Technology in Karuizawa.
Prof. Dr. Terasaka presented a study of "Mocrobubble Flotation for Iron Oxide Particle Separation from Suspension" at the 1st Asian Conference on Innovative Energy & Environmental Chemical Engineering - A New Paradigm Emerging from Fluidozed-Bed and Three-Phase Reactors in Sappro, Japan.
Dr. Kobayashi presented "Effect of ultrasonic irradiation on behaviour of microbubbles" at the11 th Meeting of the European Society of Sonochemistry in La Grande - Motte, France.
Assoc. Prof. Dr. Terasaka was promoted to Professor in Keio University.
International Conference on Multiphase Flow 2007, Leipzig, Germany, four research papers of our labo were presented.
Assoc. Prof. Dr. Terasaka presented a study on "Recovery of fine carbon particlesfrom water using microbubble flotation." Takashi Goshima also presented a poster "Behavior of bubble formed from a coaxial nozzle in capillary tube into flowing liquid." Yoshihito Sasada presented a poster "Submilli-bubble dispersion from a novel gas distributor into water."
Takashi Goshima presented a poster "Slug Bubble Formation in Liquid in Capillary Tube" at IWPI2006 in Kobe University.
Assoc. Prof. Dr. Terasaka presented the research "Absorption and stripping of CO2 with molten salt slurry in bubble column at high temperature."
Assoc. Prof. Dr. Terasaka presented the research "CO2 gas recovery using slurry bubble column suspended lithium silicate particulates at high temperature" at Pacifichem 2005 Congress in Honolulu, Hawaii.
Assoc. Prof. Dr. Terasaka presented the research "High Temperature CO2 Absorption with Lithium Silicate Particulates Suspended in Molten Salt" at The Seventh International Conference on Separation Science and Technology between Korea and Japan in Dongyang University Yeongju, Korea.
Assoc. Prof. Dr. Terasaka presented the research "Uniform small bubble distribution into highly viscous liquids using spiral liquid flow" at the 7th World Congress of Chemical Engineering in Glasgow, Scotland.
Assoc. Prof. Dr. Terasaka presented the research "Oxygen Transfer into Xanthan Solutions in Partitioned Bubble Columns" at APCChE 2004 in Kitakyushu, Japan.
Assoc. Prof. Dr. Terasaka presented our research "Interfacial Area and Rising Velocity of Single Bubble Measured 3-Dimensionally Using Laser Sensors."
the 6th Japanese/German Symposium on Bubble Columns at Nata New Public Holl, Yousuke Inoue presented a poster entitled "Simultaneous measurement of 3-dimensional shape and behavior of single bubble in liquid using laser sensors."
Assoc. Prof. Dr. Terasaka presented at the 6th International Conference on Gas-liquid and Gas-Liquid-Solid Reactor Engineering (GLS-6) in Vancouver, Canada. The title of the presentation was "Bubble Distribution in Shear Flow of Highly Viscous Liquids."
Assoc. Prof. Dr. Terasaka presented at The 8th Asian Conference on Fluidized-Bed and Three-Phase Reactors (ASCON2002) in Bangkok, Thiland.
The title of the presentation was "Oxygen Transfer in Viscous Non-Newtonian Liquids Having Yield Stress in Bubble Columns Operated under Slug Flow Condition". T. Goshima also presented a poster entitled "Solid particle circulation rate and gas-solid behavior in twin-column circulating fluidized bed" with Assoc. Prof. Dr. Terasaka.
Assoc. Prof. Dr. Terasaka presented "Gas Holdup and Oxygen Transfer in Viscous Non-Newtonian Liquids Having Yield Stress in Bubble Column" at 15th International Conference of Chemical and Process Engineering (CHISA2002) in Praha, Czech.
Assoc. Prof. Dr. Terasaka presented the research entitled "Gas Holdup and Oxygen Transfer in Viscous Liquids Having Yield Stress in Bubble column"at 6th World Congress of Chemical Engineering and Gas-Liquid-Solid Reactor Engineering 2001 in Melbourne, Australia.
Chemical Reaction Engineering Laboratory was established in Department of Applied Chemistry in Keio University.