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OHGAKI,SHINICHIRO

Professor, Department of Urban Engineering
School of Engineering, The University of Tokyo

7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan

Fax : +81-3-5841-8534  
E-mail : ohgaki@env.t.u-tokyo.ac.jp

Click here for Japanese version

Last updated on July 11, 2007

Back to Environmental Engineering Course

Professional Experience

1969 Bachelor of Engineering (The University of Tokyo)
1971 Master of Engineering (The University of Tokyo)
1974 Docter of Engineering (The University of Tokyo)
1974-1976 Research Associate of Dept. of Civil Eng., Tohoku University, Sendai, Japan
1977-1983 Associate Professor of Department of Urban Engineering, The University of Tokyo, Tokyo, Japan
1983-1985 Associate Professor of Environmental Engineering Division, Asian Institute of Technology, Bangkok, Thailand
1985-1989 Associate Professor of Department of Urban Engineering, The University of Tokyo

1989-

　　present

 Professor of Department of Urban Engineering, The University of Tokyo
2000-2002 Director of Research Center for Water Environment Technology
2002-2004 Dean, School of Engineering, The University of Tokyo

2005 Oct.-

　　2006 Oct.

 Vice President, Science Council of Japan

2005 Sep.-

　　present

 Vice President, International Water Association (IWA)

Publications

（Papers written in English from 1996. Last update on July 11, 2007)

  • Sakai, H., K. Oguma, H. Katayama and S. Ohgaki, Effects of low or medium-pressure UV irradiation on the release of intracellular microcystin, Water Research, 41, 3458-3464, 2007.
  • Edited by H. Furumai, H. Katayama, F. Kurisu, H. Satoh, S. Ohgaki and N.C. Thanh, Southeast Asian Water Environment 2, IWA Publishing, 2007.
  • Haramoto, E., M. Kitajima, H. Katayama, and S. Ohgaki, Detection of koi herpesvirus DNA in river water in Japan, Journal of Fish Diseases, 30(1), 59-61, 2007.
  • Sakai, H., K. Oguma, H. Katayama and S. Ohgaki, Effects of low- or medium-pressure ultraviolet lamp irradiation on Microcystis aeruginosa and Anabaena variabilis, Water Research, 41, 11-18, 2007.
  • Edited by Shinichiro Ohgaki with Kensuke Fukushi, Hiroyuki Katayama, Satoshi Takizawa and Chongrak Polprasert, Southeast Asian Water Environment 1, IWA Publishing, 2006.
  • Masago, Y., H. Katayama, T. Watanabe, E. Haramoto, A. Hashimoto, T.Omura, T. Hirata and S. Ohgaki, Quantitative Risk Assessment of Noroviruses in Drinking Water Based on Qualitative Data in Japan, Environ. Sci. Technol., 40, 7428-7433, 2006.
  • Hwang, M.G., H. Katayama and S. Ohgaki, Effect of Intracellular Resuscitation of Legionella pneumophila in Acanthamoeba polyphage Cellson the Antimicrobial Properties of Silver and Copper, Environ. Sci. Technol., 40, 7434-7439, 2006.
  • Oh, H.K., S. Takizawa, S. Ohgaki, H. Katayama, K. Oguma and Yu,M.J., Removal of organics and viruses using hybrid ceramic MF system without draining PAC, Desalination, 202, 191-198, 2006.
  • Haramoto, E., H. Katayama, K. Oguma, H. Yamashita, A. Tajima, H. Nakajima, and S. Ohgaki, Seasonal profiles of human noroviruses and indicator bacteria in wastewater treatment plant in Tokyo, Japan. Water Science and Technology. 54(11-12), 301-308, 2006.
  • Haramoto, E., H. Katayama, K. Oguma, Y. Koibuchi, H. Furumai and S. Ohgaki, Effects of rainfall on the occurrence of human adenoviruses, total coliforms, and Escherichia coli in seawater, Water Science and Technology 54(3), 225-230, 2006.
  • Hwang, M.G., H. Katayama and S. Ohgaki, Accumulation of copper and silver onto cell body and its effect on the inactivation of Pseudomonas aeruginosa, Water Science and Technology 54(3),29-34, 2006.
  • Phanuwan, C., S. Takizawa, K. Oguma, H. Katayama, A. Yunika and S. Ohgaki, Monitoring of human enteric viruses and coliform bacteria in waters after urban flood in Jakarta, Indonesia, Water Science and Technology 54(3), 203-210, 2006.
  • Masago, Y., K. Oguma, H. Katayama and S. Ohgaki, Quantification and genotyping of Cryptosporidium spp. in river water by quenching probe PCR and denaturing gradient gel electrophoresis,Water Science and Technology 54(3), 119-126, 2006.
  • Oh, H.K., M.J. Yu, S. Takizawa and S. Ohgaki, Evaluation of PAC behavior and fouling formation in an integrated PAC−UF membrane for surface water treatment, Desalination 192, 54-62, 2006.
  • Kim, H.S., H. Katayama, S. Takizawa and S. Ohgaki, Development of a microfilter separation system coupled with a high dose of powered activated carbon for advanced water treatment, Desalination vol.186 no.3, 215-226, 2006.
  • Haramoto, E., H. Katayama, K. Oguma, and S. Ohgaki, Application of cation-coated filter method to detection of noroviruses, enteroviruses, adenoviruses, and torque teno viruses in Tamagawa River in Japan, Appl. Environ. Microbiol.71, 2403-2411, 2005.
  • Haramoto, E., H. Katayama, K. Oguma, H. Yamashita, E. Nakajima and S. Ohgaki, One-year monthly monitoring of Torque teno virus (TTV) in wastewater treatment plants in Japan, Water Reseach, in press., 2005.
  • Zhao, P., S. Takizawa, H. Katayama and S. Ohgaki, Factors causing PAC cake fouling in PAC-MF (powered activated carbon-microfiltration) water treatment system，Water Science & Technology，Vol 51 No 6-7 , 231-240, 2005.
  • Sakai, H., K. Oguma, H. Katayama and S. Ohgaki, Low- or Medium-pressure UV Lamp Inactivation of Microcystis aeruginosa, Journal of Water and Environment Technology Vol.3 No.1, 55-61, 2005.
  • Oguma, K., H. Katayama, and S. Ohgaki, Spectral impact of inactivating light on photoreactivation of Escherichia coli, Journal of Environmental Engineering and Science, Suppl. 1: S1-S6., 2005.
  • Katayama H., K. Oguma , H. Furumai and S. Ohgaki, Series of Surveys for Enteric Viruses and Indicator Organisms in Tokyo Bay after an Event of Combined Sewer Overflow Water Science and Technology, Vol 50 No 1, 259-262, 2004.
  • Katayama H., A. Tanaka, M. Otaki and S. Ohgaki, Determination of Naturally Occurring Norwalk viruses in coastal seawater by alkaline elution after acid rinse using negatively charged membrane Water Science and Technology: Water Supply, Vol.4 No.2, 73-77, 2004.
  • Masago Y., K. Oguma, H. Katayama, T.Hirata and S.Ohgaki, Cryptosporidium monitoring system at a water treatment plant based on waterborne risk assessment,Water Science and Technology, Vol.50 No.1, 293-299, 2004.
  • Oguma, K., H. Katayama, and S. Ohgaki, Repressive effects of yeast extract on photoreactivation of Escherichia coli, Water Science and Technology 50 (1), 2004 Vol 40, 221-226 (in Japanese), 2004.
  • Oguma, K., H. Katayama, and S. Ohgaki, Photoreactivation of Legionella pneumophila after inactivation by low- or medium-pressure ultraviolet lamp,Water Research 38, 2757-2763, 2004.
  • Haramoto E.，H. Katayama and S. Ohgaki, Detection of Noroviruses in Tap Water in Japan by Means of a New Method for Concentrating Enteric Viruses in Large Volumes of Fresh Water, Appl. Environ. Microbiol.70, 2154-2160., 2004.
  • Otaki, M., A. Okuda, K. Tajima, T. Iwasaki, S. Kinoshita and S. Ohgaki, Inactivation differences of Microorganisms by Low Pressure UV and Pulsed Xenon Lamps, Water Science and Technology, Vol.47, No.3, 185-190, 2003.
  • Ohgaki, S., M.Z.B. Alam, K. Oguma, UV-disinfection and Photoreactivation: Complex Effects of Light on Microorganisms, Water Resources and Water Supply in the 21st Century, Hokkaido University Press, 167-176, 2003.
  • Seo, G., S. Takizawa, S. Ohgaki, Ammonia Oxidation at Low Temperature in a High concentration Powdered Activated Carbon Membrane Bioreactor, Water Science and Technology: Water Supply, Vol.2, No.2, 169-176, 2002.
  • Oguma, K., H. Katayama and S. Ohgaki, Photoreactivation of Escherichia coli after Low- or Medium-Pressure UV Disinfection Determined by an Endonuclease Sensitive Site Assay, Applied and Environmental Microbiology, Vol.68, 3029-6035, 2002.
  • Masago, Y., H. Katayama, A. Hashimoto, T. Hirata and S. Ohgaki, Assessment of risk of infection due to Cryptosporidium parvum in drinking water, Water Science & Technology, Vol.46, No.11-12, 319-324, 2002.
  • Morita,S., A. Namikoshi, T. Hirata, K. Oguma, H. Katayama, S. Ohgaki, N. Motoyama, and M. Fujiwara, Efficacy of UV Irradiation in Inactivating Cryptosporidium parvum Oocysts, Applied and Environmental Microbiology, Vol.68, No.11, 5387-5393, 2002.
  • Alam, M.Z.B., Ohgaki, S., Role of hydrogen peroxide and hydroxyl radical in producing the residual effect of ultraviolet radiation, Water Environment Research, Vol. 74, No.3, pp248-255, 2002
  • Khan, M.M.T., H.S. Kim, H. Katayama, S. Takizawa and S. Ohgaki, The effect of particulate material and the loading of bacteria on a high dose PAC-MF system, Water Supply, Vol.2, No.5-6, 359-365, 2002.
  • Park, J., S. Takizawa, H. Katayama and S. Ohgaki, Biofilter Pretreatment for the Control of Microfiltration Membrane Fouling, Water Science and Technology: Water Supply, Vol.2, No.2, 193-199, 2002.
  • Wagner, W., J. Gawel, H. Furumai, M. Pereira De Souza, D. Teixeira, L. Rios, S. Ohgaki, A.J.B. Zehnder, and H. Hemond, Sustainable Watershed Management: An International Multi-watershed Case Study, Ambio Vol. 31, No.1, 2002.
  • Katayama, H., A. Shimasaki and S. Ohgaki, Development of a Virus Concentration Method and Its Application to Detection of Enterovirus and Norwalk Virus from Coastal Seawater, Applied and Environmental Microbiology, Vol. 68, No. 3, 1033-1039, 2002.
  • Matsushita, J., M. Ozaki, S. Nishimura and S. Ohgaki, Rainwater drainage management for urban development based on public-private partnership, Water Science & Technology, Vol.44,No.2-3, 295-303, 2001.
  • Seo, G.T. and S. Ohgaki, Evaluation of refractory organic removal in combined biological powdered activated carbon - microfiltration for advanced wastewater treatment, Water Science & Technology, Vol.43, No.11, 67-74, 2001.
  • Takizawa, S., L.Fu, N.Pradhan, T.Ike, M.Ohtaki and S.Ohgaki, Pretreatment Processes for Membrane Filtration of Raw Water Containing Manganese, Water Science and Technology: Water Supply, Vol.1, No.5/6, 341-348, 2001.
  • Katayama, H., M. Nakamura and S. Ohgaki, PCR determination of inactivated RNA coliphage Qβ, Advances in Water and Wastewater Technology, Edited by Matsuo, T., Hanaki, K., Satoh, H., Elsevier, 101-108, 2001.
  • Takanashi, H., K. Urano, M. Hirata, T. Hano, and S. Ohgaki, Method for Measuring Mutagen Formation Potential (MFP) on Chlorination as a New Water Quality Index, Water Research, Vol. 35, No. 7, 1627-1634, 2001.
  • Ohgaki, S., Y. Masago, H. Katayama, T. Hirata, A. Hashimoto, M.Z.B. Alam, Quantitative risk assessment of cryptosporidium in a watershed, Advances in Water and Wastewater Technology, Edited by Matsuo, T., Hanaki, K., Satoh, H., Elsevier, 91-99, 2001.
  • Alam, M.Z.B., M. Otaki, H. Furumai, S. Ohgaki, Direct and indirect inactivation of Microcystis aeruginosa by UV-radiation, Water Research, Vol. 35, No. 4, 1008-1014, 2001.
  • Alam, M.Z.B., S. Ohgaki, Evaluation of UV-radiation and its residual effect for algal growth control, Advances in Water and Wastewater Technology, Edited by T. Matsuo, K. Hanaki, H. Satoh, Elsevier, 109-117, 2001.
  • Oguma, K., H. Katayama, H. Mitani, S. Morita, T. Hirata and S. Ohgaki, Determination of Pyrimidine Dimern Escherichia coli and Cryptosporidium parvum during UV Light Inactivation, Photoreactivation, and Dark Repair, Appl. Environ. Microbiol. Vol.67, 4630-4637, 2001.
  • Otaki, M., T. Hirata and S. Ohgaki, Aqueous microorganisms inactivation by photocatalytic reaction, Water Science & Technology, Vol.42, No.3-4, 103-108, 2000.Haramoto, E., M. Kitajima, H. Katayama, and S. Ohgaki, Detection of koi herpesvirus DNA in river water in Japan, Journal of Fish Diseases, 30(1), 59-61, 2007.
  • Sakai, H., K. Oguma, H. Katayama and S. Ohgaki, Effects of low- or medium-pressure ultraviolet lamp irradiation on Microcystis aeruginosa and Anabaena variabilis, Water Research, 41(1), 11-18, 2007.
  • Masago, Y., H. Katayama, T. Watanabe, E. Haramoto, A. Hashimoto, T. Omura, T. Hirata and S. Ohgaki, Quantitative Risk Assessment of Noroviruses in Drinking Water Based on Qualitative Data in Japan, Environ. Sci. Technol., 40, 7428-7433, 2006.
  • Hwang, M.G., H. Katayama and S. Ohgaki, Effect of Intracellular Resuscitation of Legionella pneumophila in Acanthamoeba polyphage Cellson the Antimicrobial Properties of Silver and Copper, Environ. Sci. Technol., 40, 7434-7439, 2006.
  • Oh, H.K., S. Takizawa, S. Ohgaki, H. Katayama, K. Oguma and Yu,M.J., Removal of organics and viruses using hybrid ceramic MF system without draining PAC, Desalination, 202, 191-198, 2006.
  • Haramoto, E., H. Katayama, K. Oguma, H. Yamashita, A. Tajima, H. Nakajima, and S. Ohgaki, Seasonal profiles of human noroviruses and indicator bacteria in wastewater treatment plant in Tokyo, Japan. Water Science and Technology. 54(11-12), 301-308, 2006.
  • Haramoto, E., H. Katayama, K. Oguma, Y. Koibuchi, H. Furumai and S. Ohgaki, Effects of rainfall on the occurrence of human adenoviruses, total coliforms, and Escherichia coli in seawater, Water Science and Technology 54(3), 225-230, 2006.
  • Hwang, M.G., H. Katayama and S. Ohgaki, Accumulation of copper and silver onto cell body and its effect on the inactivation of Pseudomonas aeruginosa, Water Science and Technology 54(3),29-34, 2006.
  • Phanuwan, C., S. Takizawa, K. Oguma, H. Katayama, A. Yunika and S. Ohgaki, Monitoring of human enteric viruses and coliform bacteria in waters after urban flood in Jakarta, Indonesia, Water Science and Technology 54(3), 203-210, 2006.
  • Masago, Y., K. Oguma, H. Katayama and S. Ohgaki, Quantification and genotyping of Cryptosporidium spp. in river water by quenching probe PCR and denaturing gradient gel electrophoresis,Water Science and Technology 54(3), 119-126, 2006.
  • Oh, H.K., M.J. Yu, S. Takizawa and S. Ohgaki, Evaluation of PAC behavior and fouling formation in an integrated PAC−UF membrane for surface water treatment, Desalination 192, 54-62, 2006.
    Kim, H.S., H. Katayama, S. Takizawa and S. Ohgaki, Development of a microfilter separation system coupled with a high dose of powered activated carbon for advanced water treatment, Desalination vol.186 no.3, 215-226, 2006.
  • Haramoto, E., H. Katayama, K. Oguma, and S. Ohgaki, Application of cation-coated filter method to detection of noroviruses, enteroviruses, adenoviruses, and torque teno viruses in Tamagawa River in Japan, Appl. Environ. Microbiol.71, 2403-2411, 2005.
  • Haramoto, E., H. Katayama, K. Oguma, H. Yamashita, E. Nakajima and S. Ohgaki, One-year monthly monitoring of Torque teno virus (TTV) in wastewater treatment plants in Japan, Water Reseach, in press., 2005.
  • Zhao, P., S. Takizawa, H. Katayama and S. Ohgaki, Factors causing PAC cake fouling in PAC-MF (powered activated carbon-microfiltration) water treatment system，Water Science & Technology，Vol 51 No 6-7 , 231-240, 2005.
  • Oguma, K., H. Katayama, and S. Ohgaki, Spectral impact of inactivating light on photoreactivation of Escherichia coli, Journal of Environmental Engineering and Science, Suppl. 1: S1-S6., 2005.
  • Katayama, H., K. Oguma , H. Furumai and S. Ohgaki, Series of Surveys for Enteric Viruses and Indicator Organisms in Tokyo Bay after an Event of Combined Sewer Overflow Water Science and Technology, Vol.50 No 1, 259-262, 2004.
  • Katayama, H., A. Tanaka, M. Otaki and S. Ohgaki, Determination of Naturally Occurring Norwalk viruses in coastal seawater by alkaline elution after acid rinse using negatively charged membrane Water Science and Technology: Water Supply, Vol.4 No.2, 73-77, 2004.
  • Masago, Y., K. Oguma, H. Katayama, T. Hirata and S. Ohgaki, Cryptosporidium monitoring system at a water treatment plant based on waterborne risk assessment, Water Science and Technology, Vol.50 No.1, 293-299, 2004.
  • Oguma, K., H. Katayama, and S. Ohgaki, Repressive effects of yeast extract on photoreactivation of Escherichia coli,Water Science and Technology 50 (1), 2004 Vol 40, 221-226 (in Japanese), 2004.
  • Oguma, K., H. Katayama, and S. Ohgaki, Photoreactivation of Legionella pneumophila after inactivation by low- or medium-pressure ultraviolet lamp,Water Research 38, 2757-2763, 2004.
  • Haramoto, E.，H. Katayama and S. Ohgaki, Detection of Noroviruses in Tap Water in Japan by Means of a New Method for Concentrating Enteric Viruses in Large Volumes of Fresh Water, Appl. Environ. Microbiol.70, 2154-2160., 2004.
  • Otaki, M., A. Okuda, K. Tajima, T. Iwasaki, S. Kinoshita and S. Ohgaki, Inactivation differences of Microorganisms by Low Pressure UV and Pulsed Xenon Lamps, Water Science and Technology, Vol.47, No.3, 185-190, 2003.
  • Ohgaki, S., M.Z.B. Alam, K. Oguma, UV-disinfection and Photoreactivation: Complex Effects of Light on Microorganisms, Water Resources and Water Supply in the 21st Century, Hokkaido University Press, 167-176, 2003.
  • G. Seo, S. Takizawa and S. Ohgaki, Ammonia Oxidation at Low Temperature in a High concentration Powdered Activated Carbon Membrane Bioreactor, Water Science and Technology: Water Supply, Vol.2, No.2, 169-176, 2002.
  • Oguma, K., H. Katayama and S. Ohgaki, Photoreactivation of Escherichia coli after Low- or Medium-Pressure UV Disinfection Determined by an Endonuclease Sensitive Site Assay, Applied and Environmental Microbiology, Vol.68, 3029-6035, 2002.
  • Masago, Y., H. Katayama, A. Hashimoto, T. Hirata and S. Ohgaki, Assessment of risk of infection due to Cryptosporidium parvum in drinking water, Water Science & Technology, Vol.46, No.11-12, 319-324, 2002.
  • Morita, S., A. Namikoshi, T. Hirata, K. Oguma, H. Katayama, S. Ohgaki, N. Motoyama, and M. Fujiwara, Efficacy of UV Irradiation in Inactivating Cryptosporidium parvum Oocysts, Applied and Environmental Microbiology, Vol.68, No.11, 5387-5393, 2002.
  • Alam, M.Z.B. and S. Ohgaki, Role of hydrogen peroxide and hydroxyl radical in producing the residual effect of ultraviolet radiation, Water Environment Research, Vol.74, No.3, 248-255, 2002.
  • Khan, M.M.T., H.S. Kim, H. Katayama, S. Takizawa and S. Ohgaki, The effect of particulate material and the loading of bacteria on a high dose PAC-MF system, Water Supply, Vol.2, No.5-6, 359-365, 2002.
  • Park, J., S. Takizawa, H. Katayama and S. Ohgaki, Biofilter Pretreatment for the Control of Microfiltration Membrane Fouling, Water Science and Technology: Water Supply, Vol.2, No.2, 193-199, 2002.
  • Wagner, W., J. Gawel, H. Furumai, M. Pereira De Souza, D. Teixeira, L. Rios, S. Ohgaki, A.J.B. Zehnder, and H. Hemond, Sustainable Watershed Management: An International Multi-watershed Case Study, Ambio Vol. 31, No.1, 2002.
  • Katayama, H., A. Shimasaki and S. Ohgaki, Development of a Virus Concentration Method and Its Application to Detection of Enterovirus and Norwalk Virus from Coastal Seawater, Applied and Environmental Microbiology, Vol. 68, No. 3, 1033-1039, 2002.
  • Matsushita, J., M. Ozaki, S. Nishimura and S. Ohgaki, Rainwater drainage management for urban development based on public-private partnership, Water Science & Technology, Vol.44,No.2-3, 295-303, 2001.
  • Seo, G.T. and S. Ohgaki, Evaluation of refractory organic removal in combined biological powdered activated carbon - microfiltration for advanced wastewater treatment, Water Science & Technology, Vol.43, No.11, 67-74, 2001.
  • Takizawa, S., L. Fu, N. Pradhan, T. Ike, M. Ohtaki and S. Ohgaki, Pretreatment Processes for Membrane Filtration of Raw Water Containing Manganese, Water Science and Technology: Water Supply, Vol.1, No.5/6, 341-348, 2001.
  • Katayama, H., M. Nakamura and S. Ohgaki, PCR determination of inactivated RNA coliphage Qβ, Advances in Water and Wastewater Technology, Edited by Matsuo, T., Hanaki, K., Satoh, H., Elsevier, 101-108, 2001.
  • Takanashi, H., K. Urano, M. Hirata, T. Hano, and S. Ohgaki, Method for Measuring Mutagen Formation Potential (MFP) on Chlorination as a New Water Quality Index, Water Research, Vol. 35, No. 7, 1627-1634, 2001.
  • Ohgaki, S., Y. Masago, H. Katayama, T. Hirata, A. Hashimoto, M.Z.B. Alam, Quantitative risk assessment of cryptosporidium in a watershed, Advances in Water and Wastewater Technology, Edited by Matsuo, T., Hanaki, K., Satoh, H., Elsevier, 91-99, 2001.
  • M.Z.B. Alam, S. Ohgaki, Evaluation of UV-radiation and its residual effect for algal growth control, Advances in Water and Wastewater Technology, Edited by T.Matsuo, K.Hanaki, H.Satoh, Elsevier, 109-117, 2001.
  • Oguma, K., H. Katayama, H. Mitani, S. Morita, T. Hirata, and S. Ohgaki, Determination of Pyrimidine Dimers in Escherichia coli and Cryptosporidium parvum during UV Light Inactivation, Photoreactivation, and Dark Repair, Appl. Environ. Microbiol. Vol.67, 4630-4637, 2001.
  • Otaki, M., T. Hirata and S. Ohgaki, Aqueous microorganisms inactivation by photocatalytic reaction, Water Science & Technology, Vol.42, No.3-4, 103-108, 2000.
  • Alam, M.Z.B., M.Otaki, H. Furumai and S. Ohgaki, Direct and indirect inactivation of Microcystis aeruginosa by UV-radiation, Water Research, Vol. 35, No. 4, 1008-1014, 2000.
  • Lee, S.H. and S. Ohgaki, Oxidative degradation of TOC and THMFP by Fluidized Bed Photocatalysis Reactor, Journal of Environmental Science and Health, A34(10), 1933-1944, 1999.
  • Kuyama, T., H. Katayama and S. Ohgaki, F-Specific Coliphages and Bacteria as Viral Indicators for Monitoring Viral Pollution in Oyster Harvesting Marine Water, 7th IAWQ Asia-Pacific Regional Conference, 364-369 Oct. 18-20, 1999.
  • Oguma, K., M. Otaki and S. Ohgaki, Photoreactivation of E. coli Following Photocatalytic Disinfection, 7th IAWQ Asia-Pacific Regional Conference, 352-357, Oct. 18-20, 1999.
  • Alam, M. Z. B., M. Otaki, H. Furumai and S. Ohgaki, A Study on Residual Effect of UV-Radiation, 7th IAWQ Asia-Pacific Regional Conference, 298-303, Oct. 18-20, 1999.
  • Katayama, H. and S. Ohgaki, Concentration and Detection by RT-PCR for RNA coliphage in Water, Proc. of the International Workshop of the COE, Dept. of Urban Eng., Univ. of Tokyo, 104-112, 1999.
  • Nakamura, M,. H. Katayama and S. Ohgaki, Protein Detection of RNA Coliphage Disinfected by Chlorine, Proc. of the International Workshop of the COE, Dept. of Urban Eng., Univ. of Tokyo, 121-122, 1999.
  • Otaki, M., T. Hirata, and S. Ohgaki, A Study on Aqueous Microorganisms Inactivated by Photocatalytic Reaction, 7th IAWQ Asia-Pacific Regional Conference, 281-286, Oct. 18-20, 1999.
  • Sathasivan A. and S. Ohgaki, Application of New Bacterial Regrowth Potential Method for Water Distribution System-A Clear Evidence of PhoshorusLimitation, Water Research, Vol.33, No.1, 137-144, 1999.
  • Otaki, M., S. Takizawa and S. Ohgaki, Control and Modeling for Membrane Fouling due to Microorganism Growth by UV Pretreatment, Water Science and Technology, Vol.38, No.4-5, 405-412, 1998.
  • Lee, S.H., M. Nakamura and S. Ohgaki, Inactivation of phage Q-beta by 254nm UV light and titanium dioxide photocatalyst,Journal of Environmental Science and Health, Part A, Vol 33, No.8, 1643-1655, 1998.
  • Sathasivan A., S. Ohgaki and M. Otaki, Regrowth control in Tokyo drinking water distribution system: Is phoshorus controle a feasible option ?, Tokyo International Water Supply Symposium '98, 1998.
  • Sathasivan A., S. Ohgaki and M. Otaki, Evaluation of Water Treatment Processes in terms of Bacterial Rgrowth Control, Poster, IAWQ 19th Biennial International Conference, Vancouver, 1998.
  • Otaki, M., Takizawa, S. and Ohgaki, S., Control and Modeling fo Membrane Fouling due to Microorganism Growth by UV Pretreatment, Water Science and Technology(in Press).
  • Otaki, M., Yano, K. and Ohgaki, S., Virus Removal in Membrane Separation Process, Water Science and Technology, Vol.37, No.10, pp.107-116, 1998.
  • Seo G.T., Ohgaki S. and Suzuki Y., Sorption Characteristics of Biological Powdered Activated Carbon in Bpac-mf(Biological Powdered Activated Carbon-Microfiltration)System for Refractory Organic Removal, Wat.Sci.Tech. Vol.35, No.7, pp.163-170, 1997.
  • Limasawat Sunun ,Ohgaki Shinichiro , Fate of Liberated Viral RNA in Wastewater Determined by PCR, Applied and Environmental Microbiology, pp.2932-2933, July 1997.
  • Lee, S., K. Nishida, , Otaki, M., Ohgaki, S., Photocatalytic inactivation of phage Qβby immobilized titanium dioxide mediated photocatalyst, Water Science and Technology, Vol.35, vol.11-12, pp.101-106, 1997.
  • Aravinthan, V., Komatsu, S. Takizawa, S. Ohgaki and M. Otaki, Denitrification of Sludge Hydroysate by Immogilized Microorganisms, Proc.of 6thIAWQ Asia-Pacific Regional Conference, 822-829, 1997.
  • Lee, B., S. Takizawa, S. Ohgaki, M. Otaki and K. Fujita, Concentration Thickening by Hollow-Fiber Microfilter in Membrane Water Treatment Processes, Proc. of 6th IAWQ Asia-Pacific Regional Conference, 1468-1474, 1997.
  • Otaki, M., K. Yano, S. Karasawa and S. Ohgaki, Fate of Indigenous Coliphages in Pilot Scale Membrane Processes, Proc. of 6th IAWQ Asia-Pacific Regional Conference, 1491-1498, 1997.
  • Sathasivan, A., S. Ohgaki, K. Yamamoto and N. Kamiko, Role of Inorganic Phosphorus in Controlling Regrowth in Water Distribution System, Water Science Technology, Vol.35, No.8, 37-44, 1997.
  • Seo, G.T., Y. Suzuki and S. Ohgaki, Biological powdered activated carbon(BPAC)microfiltration for wastewater reclamation and reuse,Desalination 106(1996), 39-45, March and June, 1996.
  • Ratanatamskul, C., K. Yamamoto, T. Urase and S. Ohgaki, Effect of OperatingConditions on Rejection of Anionic Pollutants in Water Environment by Nanofiltration Especially in Very Low Pressure Range,Water Quality International'96, 323-330, June 1996.
  • Kashimada, K., N. Kamiko, K. Yamamotozuo and S. Ohgaki, Assessment of Photoreactivation Following Ultraviolet Light Disinfection,Water Science Technology, Vol.33(10-11), 261-269, 1996.
  • Bally, D., T. Asano, R. Bhamidimarri, K.K. Chin, W.O.K. Grabow, E.R. Hall, S. Ohgaki, D. Orhon, A. Milburn, C.D. Purdon, and P.T. Nagle, (Ed.)　Selected Proceedings of the 18th Biennial Conference of the International Association on the Water Quality, Water Quality International '96, (Singapore), Part 1, Water Science and Technology, June 1996.
  • Otaki, M., K. Yamamoto and S. Ohgaki, Decomposition Ratio of Organohalogenides by Low and Medium Pressure UV Lamps in Considering of Germicidal UV Dose, Proc.of poster presentation, IAWQ 18th Biennial International Conference, 58, 1996.
  • Sathasivan, A., S. Ohgaki and M. Otaki, Is Assimilable Organic Carbon The Only Really Important Nutrient In Bacterial Regrowth Controle?, AWWA 17th Federal Convention, 1996.

Invitation Lecture

  • OHGAKI, Shinichiro, ICIST-KAIST 2007 Designs for future ? Promising fields of Sci & Tech, Sustainable Water Resources Management for Mega-cities, Deajeon, Korea, July 25, 2007
  • OHGAKI, Shinichiro, Groundwater Management in Asia, The 7th Science Council of Asia (SCA) Conference SCA/PSA Joint Symposium "Water Resources", Okinawa, Japan, June 16, 2007
  • OHGAKI, Shinichiro, Efficient Water Supply in Cooperation with Science and Technology, 4thIWA Specialist Conference on Efficient Use and Management of Urban Water, Jeju, Korea, May 22, 2007
  • OHGAKI, Shinichiro, Sustainable Water Resources Management for Mega-cities , International Symposium on Food and Water Sustainability in China 2007, Macau, China, January 18, 2007
  • OHGAKI, Shinichiro, Water Resources Management and Environmental Policies for Mega-cities, International Symposium on Sustainable and Safe Water Supplies, The University of Hong Kong, Hong Kong, January 15, 2007
  • OHGAKI, Shinichiro, Ultraviolet light disinfection technologies for water environment, ASI-2006, Leading-Edge Strategies and Technologies for Sustainable Urban Water Management , The Hong Kong University of Science and Technology, Hong Kong, September 17, 2006
  • OHGAKI, Shinichiro, Large-Scale Urban Water Management around Sustainability, IWA World Water Congress 2006 Beijing Workshop, Cities of the Future: Urban Sustainability and Water, Beijing, China, September 13, 2006
  • OHGAKI, Shinichiro, Science for Development and Environment −Science and Technology for Society−, MSA GOLDEN JUBILEE International Symposium on Public Understanding of Science and Technology (PUSAT) 2006 Kuala Lumpur, June 15, 2006
  • OHGAKI, Shinichiro, "Water Resources Management for Mega Cities", OECD-SA workshop on International Scientific and Technological co-operation for Sustainable development, South Africa, November 21-22, 2005
  • OHGAKI, Shinichiro, "Water Resources and Water Environment in Mega-cities" 大都市域における水資源と水環境, 2005, Taiwan-Japan Science and Technology Forum, Taipei, September 16-17, 2005
  • OHGAKI, Shinichiro, "Water Environment and Water Resource in Mega-cities", Plenary Speaker, 1st IWA-ASPIRE(Asia Pacific Regional Group)Conference & Exhibition,Singapore, July 10-15, 2005
  • OHGAKI, Shinichiro, "Water Environment in Urbanized Area -Sustainable or Not?-", UT forum at Stockholm University, Stockholm, August 24, 2004
  • OHGAKI, Shinichiro, Membrane Technology for Water and Wastewater Treatment in Japan, The 2nd Wastewater Reuse Conference, National Central University, Taiwan, September 1996.
  • OHGAKI, Shinichiro, "Urbanization and Water Environment", Seminar on Water Environment Management in LDCs and International Cooperation -Towards Sustainable Development of Big Cities, Co-organised by Thailand　Environment Institute (TEI) and Global Industrial and Social Progress Research Institute (GISPRI), Japan, January 24-25, 1995


Membership and Academic Activity　(Last updated on MAR.15,2007)

　　Member of

　　　・International Water Association

　　　　（Governing Board Member, Vice President)

　　　・Water Environment Federation, U.S.A.

　　　・Association of Environmental Engineering Professors, U.S.A.

　　　・The International Water Academy, Norway

　　　・Japan Society on Water Environment

　　　　（Advisory Board Member, Past President)

　　　・Japan Society of Civil Engineering

　　　・Japan Water Works Association

　　　・Japan Sewage Works Association

　　　・Science Council of Japan, Past Vice President


LINK

◇URL for Center for Sustainable Urban Regeneration,

The University of Tokyo:


http://csur.t.u-tokyo.ac.jp/index.html

◇URL for Freshwater Resources Management Project,

Institute for Global Environmental Strategies:


http://www.iges.or.jp/en/fw/index.html