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RemTEC Summit

Daniel Oberle
Daniel Oberle

Vice President, Engineering
TRS Group, Inc.

Mr. Oberle has been involved in the design and review of more than 80 ISTR systems. As VP of Engineering he is responsible for directing TRS technology advancements and managing a team of engineers on projects across the U.S. Mr. Oberle has over 30 years of experience in the environmental remediation industry. He integrates his extensive background experiences and in-depth understandings of chemical engineering, and soil and groundwater investigations. He provides a diversity of environmental management services, ranging from functional remediation system design to unique solutions involving the development of new technologies for each phase of projects.


In Situ Thermal Remediation of PFAS and 1,4-Dioxane

Emerging contaminants, such as 1,4-dioxane and per- and polyfluoroalkyl substances (PFAS), resist in situ treatment by conventional advective flow based technologies. Effective remediation is limited to expensive, ex situ treatment by advanced chemical oxidation or filtration. However, recent laboratory bench testing shows significant concentration reductions in PFAS concentrations in source contamination soil. In addition, concentrations of 1,4-dioxane in groundwater were recently observed at two in situ thermal remediation (ISTR) projects where heating was used for treatment of chlorinated solvents in groundwater. Recent bench testing evaluated the effects of 1,4-dioxane treatment by steam stripping and PFAS treatment by volatilization. Results from the recent PFAS bench tests and lessons learned from full scale field applications using ISTR of 1,4-Dioxane will be shared. The presentation will also include a thorough analysis of ISTR with these difficult emerging contaminants.

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