Chittaranjan Ray

Professor of Civil and Environmental Engineering
Office: POST 203H
Phone: (808) 956-9652
E-mail: ray@wiliki.eng.hawaii.edu
Personal Homepage: click here

Areas of Specialty and Research Interest:

Water quality engineering, water quality assessment with special emphasis on groundwater, pesticides, flow and transport processes in variably-saturated media, surface and groundwater interaction.

Education:

  • Ph.D., Civil Engineering, University of Illinois, Urbana, 1994
  • M.S., Civil Engineering, Texas Tech University, Lubbock, 1984
  • M.Sc., Agricultural Engineering, University of Manitoba, Canada, 1982
  • B.S., Agricultural Engineering, Orissa University of Agriculture and Technology, India 1980

Professional Registration:

  • Registered Professional Engineer (PE), Civil Engineering, Illinois, since 1993.

Experience:

  • Professor, Department of Civil and Environmental Engineering and Researcher, Water Resources Research Center, University of Hawaii at Manoa, 8/2006
  • Associate Professor, Department of Civil and Environmental Engineering and Associate Researcher, Water Resources Research Center, University of Hawaii at Manoa, 8/2001 – 7/2006.
  • Assistant Professor, Department of Civil and Environmental Engineering, University of Hawaii at Manoa, 8/1997 – 6/2001.
  • Associate Professional Scientist, Illinois State Water Survey, Champaign, 1994 – 1997.
  • Research Associate, Illinois State Water Survey, Champaign, 1989 - 1994.
  • Staff Engineer, Geraghty & Miller, Inc., Hackensack, 1985 - 1988.

Courses Taught:

  • CEE 270: Applied Mechanics I: Statics
  • CEE 320: Fluid Mechanics
  • CEE 330: Introduction to Environmental Engineering
  • CEE 424: Applied Hydrology
  • CEE 625: Soil Hydrologic Processes (Vadose Zone Hydrology)
  • CEE630: Water Resources Systems Planning and Management (20% contribution)
  • CEE 635/PH 689: Environmental Chemistry
  • CEE 627: Ground-Water Hydrology
  • CEE 643: Ground-Water Remediation

Professional Activities:

  • Associate Editor, Journal of Irrigation and Drainage Engineering, 2003 - present.
  • Publications Committee, Journal of Irrigation and Drainage Engineering, ASCE, 1998–present.
  • Water Supply Committee, Environmental and Water Resources Institute, ASCE, 2004-present.
  • Groundwater Hydrology Committee, Environmental and Water Resources Institute, ASCE, 2004-present.
  • Member, Project Advisory Committee, American Water Works Association, 2005-present
  • Chair, Task Committee on Riverbank Filtration, Water Supply Committee, EWRI, ASCE, 2004-present.
  • Member, USDA W-82 Committee (Evaluating the Physical and Biological Availability of Pesticides and Pharmaceuticals in Agricultural Contexts), 10/05-09/10.
  • Workplace Safety Committee, University of Hawaii, 2003-present.
  • Universities Council on Water Resources (UCOWR), representative, University of Hawaii (2003-date).
  • Member, University of Hawaii at Manoa Faculty Senate, 2006-
  • Member, ASCE, AGU, NGWA, AEESP, AWWA, and ASAE

Awards and Honors:

  • Fulbright Senior Scholarship, Nepal/India/Bangladesh, 5.5 mo, 2003-2004.
  • Japan Society for the Promotion of Science Fellowship, 2003.
  • OECD faculty fellowship, Czech Technical University, Prague, 2003.
  • OECD Faculty Fellowship, Muncheberg, Germany, July 1-31, 1998.

Recent Research Grants:

  1. US-Korea workshop on riverbank filtration under extreme environmental conditions, National Science Foundation, 9/05-8/07 (PI).
  2. Evaluation of riverbank filtration performance under extreme environmental conditions: An international collaboration, (Ray), National Water Research Institute and match from National Institute of Hydrology (India), IIT Roorkee, India, and the WRRIP program of the US Geological Survey, 6/06-5/09.
  3. Research instrumentation to enhance corrosion studies in tropical soils, (Ray and Hihara), DURIP program of DoD, 4/05-5/06.
  4. Assessment of veterinary antibiotics, hormones, and pathogens in animal wastes and their fate and transport in tropical soils, (Ray, Nerurkar, Li, and Fujioka), T-STAR program of the USDA, 3 years, 10/05-9/08.
  5. Evaluation of soil factors affecting the corrosion of unexploded ordnances, supported by the Pacific Corrosion Center (PI L. Hihara), 10/04-3/07.
  6. Effect of soluble organic matter on the transport of Cryptosporidium in variable charge soils, USDA NRI/CGP, 10/06-9/08.

Selected Publications:

Books and Monographs

  1. Ray, C. 2003. Pesticides in Domestic Wells, Monograph series, American Society of Agricultural Engineers, St. Joseph, MI, ISBN 1-892769-29-8.
  2. Ray, C., G. Melin, and R. Linsky (eds), 2002. Riverbank Filtration: Improving Source Water Quality, Kluwer Academic Publishers, Dordrech, The Netherlands, ISBN 1-4020-1133-4.
  3. Ray, C. and R. Linsky (editors). 2002. Riverbank Filtration for Water Supply, Kluwer Academic Publishers, ISBN 1-4020-0954-2.

Book Chapters

  1. Ray, C. and H. Prommer. 2006. Clogging-induced flow and chemical transport simulation in riverbank filtration systems, in S. Hubbs (ed) Riverbank Filtration Hydrology:  Impacts on system capacity and water quality, Chap. 7, p: 155-177, Kluwer Acad. Publ. (Springer), Dordrecht and Boston.

Journal Articles (2006 only)

  1. Stenemo, F., C. Ray, R.S. Yost, and S.Y. Matsuda. 2006. An updated tool for groundwater vulnerability assessment of pesticide leaching for the islands of Hawaii, USA (accepted, Pesticide Management Science)
  2. Chen, J. J. Lichwa, C. Ray, M. Snehota, and S. Mohanty. 2006. Determination of hormones and non-ionic surfactants in aqueous samples using LS-ESI-MS-MS and GC-MS (in press, DOI: 10.1365/s10337-006-0036-2)
  3. Chen, J. J. Lichwa, C. Ray. 2006. Essential oils of selected Hawaii plants and associated litters (in press Journal of Essential Oil Research)
  4. Sahoo, G. and C. Ray. 2006. Predicting Flux Decline in Cross-Flow Membranes using Artificial Neural Networks and Genetic Algorithms, J. Membrane Science 283: 147-157.
  5. Sahoo, G.B., C. Ray, E. H. De Carlo. 2006. Predictions of water quality parameter trends of a flashy mountain stream, Hawaii using artificial neural networks, Journal of Hydrology, 327: 525-538.
  6. Sahoo, G.B., C. Ray, E. H. De Carlo. 2006. Calibration and validation of a physically distributed hydrological model, MIKE SHE, to predict stream flow of a flashy flood mountainous stream, Hawaii at higher frequency, Journal of Hydrology, 327: 94-109.
  7. Sahoo, G.B., C. Ray, E. Mehnert, and D. A. Keefer. 2006. Use of Neural Networks to Assess Shallow Ground Water Contamination within the Illinois State Monitoring Well Network for Pesticides, The Science of the Total Environment, 367: 234-251.
  8. Sahoo, G.B. and C. Ray. 2006. Flow forecasting for a Hawaiian stream using rating curves and neural networks, Journal of Hydrology, 317: 63-80.
  9. Teo, J., C. Ray, and S.A. El-Swaify, 2006, Screening of polymers in Hawaii soils for erosion reduction and particle settling, Hydrological Processes, 20:109-125.

Peer-reviewed articles in published proceedings

  1. Sahoo, G.B. and C. Ray. 2005. Evaluation of Filtrate Water Quality of a River Bank Filtration Facility Using Neural Computing Technique, 2nd Indian International Conference on Artificial Intelligence (IICAI-2005), be held Dec 20-22, Pune, India, 17 pages.
  2. Ray, C. 2002. Preferential transport of bromacil in Hawaii Oxisols, 17th World Congress on Soil Science, August 14-21, 2002, Bangkok, Thailand, 10 pages.

High Volume Professional Magazine Articles

  1. Ray, C. 2005. “The Next Best Thing”, Civil Engineering Magazine, 75(7): 58-63, July 2005.

Conference presentations

  1. Mohanty, S., and C. Ray. 2006. Transport of selected contaminants in recycled water through a Hawaii soil. 4th Annual Groundwater Hydrology, Quality, and Management Symposium. ASCE EWRI Congress, Omaha, Nebraska, USA, May 21-25, 2006
  2. Sahoo, G.B. and C. Ray. 2005. Evaluation of Filtrate Water Quality of a River Bank Filtration Facility Using Neural Computing Techniques, 2nd Indian International Conference on Artificial Intelligence, Pune, India, Dec 20-22, 17 p.
  3. Schafer, D. and C. Ray. 2005. Hydraulic analysis and modeling of riverbank filtration systems to serve as intake points for water treatment plants, AWWA Annual conference, San Franciso, Calif., June 12-16, 2005, 6 p.
  4. Sanda, M., C. Ray, J. Dusek, J. Lichwa, M. Sobotkova, H. Pavelkova, and B. Loo. 2005. Field Experiments in Transport of Pesticides in Tropical Soils in Hawaii, World Water and Environmental ResourcesCongress 2005: Impacts of Global Climate Change, (R. Walton, ed.), held in Anchorage, AK, May 15-19, American Society of Civil Engineers, Reston, VA, 10 p, doi:10.1061/40792(173)367.

Home | Admissions & Financial Aid | Undergraduate Study | Graduate Study | Faculty & Staff | Research