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RemTEC Summit

Paul Hatzinger
Dr. Paul Hatzinger,

Director
APTIM

Dr. Paul Hatzinger is the Director of the Biotechnology Development and Applications Group at APTIM. Paul holds a BS degree from St. Lawrence University and both MS and PhD degrees from Cornell University. Cometabolism of traditional and emerging DoD contaminants has been an area of interest throughout his 25-year career in R&D. Paul’s research group at APTIM has been instrumental in improving our understanding of cometabolic degradation processes and developing field approaches to utilize these processes for contaminant remediation. He has authored 92 peer-reviewed papers and book chapters and has served as the Principal Investigator on research grants from NSF, EPA, DOE, AFCEC, SERDP, ESTCP, NESDI, and USACE


KEYNOTE PRESENTATION
Cometabolism Revisited

Aerobic cometabolism of organic pollutants has been studied for more than 50 years, yet this process is rarely considered by practitioners as a primary remediation approach or as a critical component of natural attenuation. However, recent laboratory and field studies suggest that aerobic cometabolism can be highly effective for a broad suite of traditional and emerging contaminants, including many chlorinated volatile organic compounds (cVOCs), 1,4-dioxane (1,4-D), 1,2-dibromoethane (EDB), 1,2,3-trichloropropane (TCP), and N-nitrosodimethylamine (NDMA) alone or in mixtures. In addition, new evidence indicates that cometabolism may be an important yet largely unrecognized component natural attenuation for cVOCs.  This approach is particularly attractive at sites in which initial contaminant concentrations are low and/or where the production of secondary products from anaerobic treatment approaches (e.g., sulfide, methane, dissolved metals) is undesirable. This presentation will provide an overview of the fundamentals of cometabolic processes and examples of successful field applications of this technology for treating traditional and emerging contaminants.  



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