Remediation Technology Summit


Francisco Barajas
Paul Hegele

Environmental Engineer
McMillan-McGee Corp

Paul Hegele is an environmental engineer with McMillan-McGee Corp., where he has led the design and execution of in situ thermal remediation projects at federal and state sites in the United States, Canada, and Brazil. His research interests focus on thermal remediation and gas transport in porous media. He holds B.Sc.(Eng.) and M.A.Sc. degrees from Queen’s University at Kingston and a P.Eng. in Alberta.

 

FLASH POSTER PRESENTATION

Managing Challenges during In Situ Thermal Remediation at the AMCO Superfund Site

The AMCO Superfund Site was a former chemical distribution facility, with over 200 contaminants identified, of which 98 were potential COCs. ERH was applied to reduce the mass of CVOCs in the LNAPL source zone. During operations, the subsurface was heated to 101.6°C and over 37,000 lb of contaminants were recovered, treating vapors to below BAAQMD TAC trigger levels and liquids to below standards developed for the 200+ constituents. Design philosophies to manage risks and reduce costs are discussed. Novel approaches and on-the-fly modifications to manage complicated site conditions are also reviewed. Examples include finite element modeling of a massive cooling system to keep a nearby 105-inch sewer interceptor below 30°C, automated vapor intrusion and effluent monitoring to inform operations, and process reconfigurations to overcome fouling. Lessons learned can be applied at other implementations in sensitive locations or subject to similar operational constraints.

Paul Hegele is an environmental engineer with McMillan-McGee Corp., where he has led the design and execution of in situ thermal remediation projects at federal and state sites in the United States, Canada, and Brazil. His research interests focus on thermal remediation and gas transport in porous media. He holds B.Sc.(Eng.) and M.A.Sc. degrees from Queen’s University at Kingston and a P.Eng. in Alberta.

 


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