Dr. Glen T. Daigger, PE, DEE

Dr. Glen Daigger has more than 30 years of experience in wastewater treatment plant evaluation, troubleshooting, and process design. His areas of expertise include biological wastewater treatment and treatment process design, in particular biological nutrient removal (both nitrogen and phosphorus), combined trickling filter and activated sludge systems, the use of biological selectors to control activated sludge bulking, and oxygen transfer. He has served as a process engineer, project engineer, and project consultant on a variety of municipal wastewater treatment projects. He has contributed to all phases of facility development, from pilot studies to startup and troubleshooting. Between 1994 and 1996 he served as professor and head of the Environmental Systems Engineering Department at Clemson University.

In his role as CH2M HILL’s Chief Wastewater Process Engineer, Dr. Glen Daigger was responsible for wastewater process engineering on both municipal and industrial wastewater treatment projects. He was also the first Technical Fellow for the firm, an honor which recognizes the leadership that he provides for CH2M HILL and for the profession in the development and implementation of new wastewater treatment technology.

He is the author of numerous reports, articles, and conference presentations on wastewater treatment and sustainable wastewater infrastructure. Among the numerous topics he has written on are bioreactors, nutrient removal, water quality, optimization, chemically-enhanced treatment, and activated sludge. His texts including Biological Wastewater Treatment, Upgrading Wastewater Treatment Plants, and Principles and Practice of Phosphorus and Nitrogen Removal from Municipal Wastewater, are used in engineering classrooms across the country. Glen has also held the position of President of the International Water Association for two consecutive terms.

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