B.S., Case Institute of Technology, Civil Engineering, 1953
M.S., Case Institute of Technology, Civil Engineering, 1956
Ph.D., University of Wisconsin, Environmental Engineering, 1961

Dr. Loehr's teaching and research interests emphasize hazardous and industrial waste management, land as a waste management alternative, and aerobic and anaerobic waste treatment processes.  Current research activities relate to development and use of hazardous waste management technologies-primarily bioremediation processes for contaminated liquids, slurries, solids and soils-and sludge stabilization and management.   Specific research involves the transformations, transport and fate of constituents when wastes are treated by hazardous and industrial waste management processes and when wastes are disposed on land.  A member of the National Academy of Engineering and past Chairman of the EPA Science Advisory Board, Dr. Loehr has many peer-reviewed publications and has authored or edited nine books.

Representative Publications

Loehr, R.C. and Webster, M.T., "Decreased Release of PAHs from Soils as a Result of Field Bioremediation," Practice Periodical of Hazardous, Toxic, and Radioactive Waste Management, pp.118-125, July 2000.

Loehr, R.C., Webster, M.T. and Smith, J.R., "Fate of Treated and Weathered Hydrocarbons in Soil - Long-Term Changes," Practice Periodical of Hazardous, Toxic, and Radioactive Waste Management, pp.53-59, April 2000.

Loehr, R.C., "Environmentally Protective Endpoints: An Important Component of Risk-Based Site Remediation Decisions," Environmental Regulation and Permitting, 9, 45-50, Winter 1999.

Poppendieck, D.G., Loehr, R.C. and Webster, M.T., "Predicting Hydrocarbon Removal from Thermally Enhanced Soil Vapor Extraction Systems-Field Studies," Journal of Hazardous Materials, 69, 95-110, October 1999.

Swanson, W.J. and Loehr, R.C., "Biofiltration: Fundamentals, Design and Operations Principles, and Applications of Biological APC Technology," Journal of Environmental Engineering, Vol. 123, No. 6, pp. 538-546, June 1997.