(Chemical Engineering)
(Chemical Engineering)
(b.1934), B.S.(1958,Waseda), M.Engr.(1960,Waseda), Ph.D. (1963,Waseda),
Res.Assoc.(1963,Waseda), Assist.Prof.(1966,Waseda), Assoc.Prof. (1968,Waseda),
Post Doc.(1970-1972,Toronto), Prof.(1973,Waseda), Visiting Prof.(1976,British
Columbia).
Director of the Environmental Safety Center (1990-1995,Waseda), President
of the Council for Environmental Protection in Private University (1995-1996),
Vice President of the Society of Chemical Engineers, Japan (1996), Vice
President of the Japan Petroleum Institute (1996-1999).
The Paper Award of the Society of Chemical Engineers, Japan (1973),
The Society Award of the Society of Chemical Engineers, Japan (1996), The
Institute Award of the Japan Petroleum Institute (1997).
keywords
Space Utilization / Interfacial Tension Gradient Driven Flow / Single Crystal Growth / Biological Wastewater Treatment / Bioreactor
Room 65-2-3B
3-4-1 Ohkubo, Shinjuku-ku, Tokyo 169-8555, Japan
Tel:+81-3-5286-3213
Fax:+81-3-3232-7083
E-mail:hirata@waseda.jp
URL: http://faculty.web.waseda.ac.jp/hirata/
Research Interests
Based on the mechanism of momentum, heat and mass transfer phenomena, and chemical and biochemical reaction process, the following studies have been done to solve the problems which have to be solved in the field of new material, global environment and bioprocess, and to contribute to human welfare.
1)Transport Phenomena in Solid-Fluid Interface
The effects of gaseous compresibiliy and high mass flux on mass transfer rate were made clear and the analogy theory for the transport phenomena in compressible fluid under supersonic flow has been laid the foundation.
2)Transport Phenomena in Liquid-Fluid Interface
The unified theory on the interphase momentum, heat and mass transfer has been proposed with the interface mobility taken notice of. The interphase tranport phenomena with interfacial contamination and with interfacial turbulence were well explained respectively by the suppression and by the enhancement of the interfacial velocity based on the interfacial tension gradient at the interface. The transport phenomena on solid spheres, liquid drops and gas bubbles were also unified with taking into account of the interfacial velocity based on the interfacial tension gradient.
3)Transport Phenomena in Single Crystal Growth
The transport phenomena in crystal-melt interface and in melt-fluid interface
were elucidated, and important knowledge were obtained for high quality
single crystal growth from melt. Based on the knowledge, high quality single
crystal of chemical compound semiconductors: In-Ga-Sb and LiNbO„x was obtained.
The room temperature deep UV current injection emission from InAlGaN multi-quantum
well light emitting by MOVDE was also demonstrated .
4)Transport Phenomena under Microgravity
The mechanism of Matangoni convection(interfacial tension gradient driven
convection) phenomena under gravity and microgravity conditions has been
elucidated with drop shaft, parabolic flight, sounding rocket and space
shuttle,and applied to high quality single crystal growth.
5)Application based on Transport Phenomena
a) Application to New Bioprocess:
The novel process for continuous synthesis of artificial sweetener: Aspartame with high yield has been newly developed with simultaneous enzymatic reaction in water phase and product separation by liquid extraction. Polymer-Enzyme complex has been developed as a novel biocatalyst for nonaqueous enzymology.
b) Application to Water environment:
Industrial wastewater treatment process has
been developed particularly with three-phase fluidized bed bioreactor concentrating biological water purification mechanism in nature. Direct detection method by in situ PCR of amoA gene in biofilm have also been developing to find effective microorganism for nitrogen removal.
Representative Publications
1)In Situ PCR for Visualizing of Distribution of a Functional Gene "amoA"
in a Biofilm Regardless of Activity", J.Biotechnology ,105(1-2),33-40,(2003)
2)"Characterization of Polymer-Enzyme Complex as a Novel Biocatalyst
for Nonaqueous Enzymology",J.MolecularCatalysis B:Enzymatic,22(1-2),79-88(2003)
3)"340-nm-band bright UV-LEDs using quaternary InAlGaN active region", Inst.Phys.Conf.Ser, 170, 195-200(2002)
4)"Experimental and numerical investigations on dissolution and recrystallization
processes of GaSb/InSb/GaSb under microgravity and terrestrial conditions",
J.Crystal Growth, 213(1-2),40-50(2000)
5)"Microbial ecology of nitrifying bacteria in wastewater treatment process examined by fluorescence in situ hybridization", Biosci.and Bioeng .,90(3),234-240(2000)
6)"Development of Novel Method for Enzymatic Peptide Synthesis Utilizing Extractive Reaction", J.Chem.Eng.Jpn., 30(3),467-477(1997)
7)"Marangoni Convection in a Liquid Bridge under Microgravity Conditions during Parabolic Flight", J.Chem.Eng.Jpn. ,27(1),65-71(1994)
8)"Control of Crystal-Melt Interface Shape during Growth of Lithium Niobate Single Crystal", J.Crystal Growth,131,145-152(1993)
9)"Oscillatory Marangoni Convection in a Silicone Oil Liquid Bridge
under Microgravity by Utilizing TR-IA Sounding Rocket",J.Japan Soc.Microgravity
Application,10(4),241-250(1993)
10)"Biological Treatment of Wastewater from the Washing of Oil and
Chemical Drums in a Three-Phase Fluidized Bed", Int.Chem.Eng.,32(3),578-584(1992)
11)"Effect of Interfacial Tension Gradient on Momentum and Mass Transfer through a Moving Interface of Single Drops", Proc.Int.Solvent Extraction Conf.(ISEC'90),
Part A,841-846,Elsevier Sci.Pub.(1992)
12)"Effect of Interfacial Velocity and Interfacial Tension Gradient
on Momentum Heat and Mass Transfer", Can.J.Chem.Eng.,67(10),777-786(1989)
13)"Transport Phenomena",1-346,Ohm(1966)
14)"Mass Transfer through Compressible Turbulent Boundary Layers on
a Cylinder and a Tube", Kagaku Kougaku(Abridged edition),2(2),254-258(1964)
Back to: