Register

Abstract

“In-Situ Management of PFAS in Groundwater” by Dr. Paul Hatzinger, Dr. Charles Newell and Dr. David Adamson (ER23-7678) 

The primary focus of this presentation is to provide current information on the in situ management of PFAS in groundwater. The presentation will provide an overview of the most promising PFAS treatment approaches including enhanced attenuation/sequestration using colloidal activated carbon (CAC) and other amendments and engineered in situ treatment systems. It will also present the current state of knowledge related to destructive technologies and discuss whether PFAS Monitored Retention, a variant of Monitored Natural Attenuation, may be a future option in a treatment train approach. The presentation will conclude with a brief discussion on how in situ treatment fits into site management strategies. 

Speaker Biographies

Dr. Paul Hatzinger is the director of the biotechnology development and applications group at APTIM. Throughout his over 27-year career in research and development, his research group has been instrumental in the development and field application of new in situ and ex situ remedial approaches for a variety of compounds including perchlorate, insensitive and traditional explosives, 1,2-dibromoethane, N-nitrosodimethylamine, and 1,4-dioxane. He has served as principal investigator on research grants from the National Science Foundation, Environmental Protection Agency, Department of Energy, Air Force Civil Engineer Center, Navy Environmental Sustainability Development to Integration Program, U.S. Army Corps of Engineers, SERDP and ESTCP. Paul has co-authored more than 90 peer-reviewed papers and book chapters. He earned his doctoral degree in environmental toxicology from Cornell University. 

Dr. Charles Newell is a vice president and principal engineer at GSI Environmental in Houston, Texas and an adjunct professor at Rice University. His professional expertise over the past 35 years includes site characterization, groundwater modeling, non-aqueous phase liquids, risk assessment, natural attenuation, remediation, environmental software development, and long-term monitoring projects. He has been awarded the Hanson Excellence of Presentation Award by the American Association of Petroleum Geologists, the Outstanding Presentation Award by the American Institute of Chemical Engineers, the 2001 Wesley W. Horner Award by the American Society of Civil Engineers, the 2008 Outstanding Alumni Award from Rice University, the SERDP 2014 Project of the Year, and the ITRC Environmental Excellence Award in 2016. He received his doctoral degree in environmental engineering from Rice University.

Dr. David Adamson is a vice president and principal engineer at GSI Environmental in Houston, Texas. He has more than 26 years of experience with a focus on chemical fate and transport, emerging chemicals of concer, and remediation. Dave’s professional experience includes site investigation, characterization, and remediation, with projects in the United States, Europe, Latin America, and the Middle East involving the design, implementation, and management of full‐scale remediation systems. He has served as a principal or co-principal investigator on over 20 DoW-sponsored research projects and has co-authored over 90 publications. Dave received a doctoral degree in civil and environmental engineering from the University of Iowa.