Faculty Profiles

Colleges and Departments

Dr. Keisuke Ikehata

  • Associate Professor - Ingram School of Engineering
Portrait of Dr. Keisuke Ikehata

Biography and education

Dr. Keisuke Ikehata is an Assistant Professor of Civil Engineering in the Ingram School of Engineering, Texas State University, San Marcos, Texas. Dr. Ikehata received his Ph.D. in Civil and Environmental Engineering from the University of Alberta, Edmonton, Alberta, Canada in 2003. In July 2019, he joined Texas State University as one of four founding members of the new Civil Engineering Program. Prior to joining Texas State University, Dr. Ikehata worked for more than eight years as a technical specialist/R&D manager at a water resources engineering firm in Orange County, California and eight years in academia in California, Alberta, and Kansas. Dr. Ikehata is a registered professional engineer (Environmental Engineer) in Arizona (PE) and Alberta (PEng) for more than 10 years.

Teaching Interests

Research Interests

  • Ikehata, Keisuke (Principal). Pilot Photobioreactor Development for Scalant Removal and Enhanced Water Recovery from Brackish Reverse Osmosis Concentrate, U.S. Bureau of Reclamation, Federal, $250000. (Submitted: November 15, 2023, Funded: September 2024 - September 2027). Grant.
  • Ikehata, Keisuke (Principal). Strategies for Gaining Pathogen Removal Credit for Reverse Osmosis in Potable Reuse in Texas (and Beyond), Freese and Nichols / Bureau of Reclamation, Private / Foundation / Corporate, $19949. (Submitted: November 16, 2022, Funded: January 5, 2024 - November 2024). Grant.
  • Ikehata, Keisuke (Principal). Development of Multi-parameter Direct Water Quality Monitoring System to Achieve the Circular Society for Water, US Bureau of Reclamation, Federal, $149999. (Submitted: June 16, 2020, Funded: July 1, 2021 - September 30, 2024). Grant.
  • Ikehata, Keisuke (Principal). Enhanced Water Recovery by a Combination of Photobiological Process and Secondary Reverse Osmosis – Lifecycle Cost Analysis and Mini-Pilot Study, U.S. Bureau of Reclamation, Federal, $250000. (Funded: January 1, 2021 - December 31, 2023). Grant.
  • Ikehata, Keisuke (Principal). Dual-Purpose Water Purification System for Direct Potable Use of Stormwater and Reclaimed Water – Feasibility Study, Texas State University, Texas State University, $8000. (Submitted: October 2019, Funded: January 2020 - Present). Grant.
View all grants
  • Adams, J. H., Fulton, C. S., Southard, M., Shao, J., Reeder, S., Price, J., … Ikehata, K. (2025). Academia-Industry Collaboration: Water Chemistry and Environmental Education. Journal of Chemical Education, 102(8), 3408–3415. https://doi.org/https://doi.org/10.1021/acs.jchemed.5c00246
  • Gao, H., Roy, E., Underwood, M. S., Adams, H., Kulkarni, H. V., Datta, S., … Ikehata, K. (2025). Diatom-Based Photobiological Treatment of Reverse Osmosis Concentrate: Optimization of Light and Temperature and Biomass Analysis. Phycology, 5(1), 3. https://doi.org/10.3390/phycology5010003
  • Ikehata, K., Espindola, C. A., Ashraf, A., & Adams, H. (2024). Augmentation of Reclaimed Water with Excess Urban Stormwater for Direct Potable Use. Sustainability, 16(18), 7917. https://doi.org/10.3390/su16187917
  • Gao, H., Sato, S., Kodamatani, H., Fujioka, T., Ishida, K. P., & Ikehata, K. (2024). Optimization of Dissolved Silica Removal from Reverse Osmosis Concentrate by Gedaniella flavovirens for Enhanced Water Recovery. Sustainability, 16, 4052. https://doi.org/https://doi.org/10.3390/su16104052
  • Adams, J. H., Pochiraju, S., Ikehata, K., Southard, M., Reeder, S., Appleton, E., & Nix, D. (2023). New Production Pathway of Musty 2,4,6-Tribromoanisole During Raw Water Disinfection Processes at a Surface Water Treatment Plant. Water Supply, 23(11), 4416–4424. https://doi.org/https://doi.org/10.2166/ws.2023.264
View all scholarly/creative works
  • Award / Honor Recipient: Division Best Article Award, American Water Works Association. June 2024
  • Award / Honor Recipient: Reuse Impact Award, WateReuse Texas. September 2023
  • Award / Honor Recipient: Service Recognition Award, Western Regional Meeting, American Chemical Society. November 2015
  • Award / Honor Recipient: Certificate of Merit Award, American Chemical Society, Division of Environmental Chemistry. August 2002
  • Award / Honor Recipient: Certification of Appreciation, Virginia Department of Environmental Quality - Commonwealth of Virginia. September 2024
View all awards
  1. Member

    CoSE 60th Anniversary Planning Committee

  2. Vice President

    International Ozone Association-Pan American Group

  3. Other

    Water Quality and Technology Division, American Water Works Association

  4. Member

    Subcommittes 1 and 3, ISO/TC 282 Water Reuse, International Organization for Standardization (ISO)

  5. Member

    Committee on Environmental and Sustainability, American Chemical Society

  6. Editorial Review Board Member

    Ozone: Science and Engineering

  7. View all activities