Michael Truex

Subsurface Reductive Elimination of Trichloroethylene using Zero-Valent Iron Emplaced by Polymer Solutions

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Michael Truex

Project type

Large-Scale EMSL Research

Zero-valent iron (ZVI) has been used for in situ remediation of inorganic compounds and chlorinated solvents through engineered permeable reactive barriers and injectable ZVI particles. A key aspect…

Flow and Transport of Edible Oil Emulsions for Enhanced Bioremediation

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Michael Truex

Project type

Large-Scale EMSL Research

Recent studies have shown that edible oil emulsions, including soybean oil, can be used to enhance the biodegradation of contaminant. Edible oil emulsions are relatively immobile and biodegrade…

Determination of Water Saturation in Relatively Dry and Desiccated Porous Media using Gas-phase Partitioning Tracer Tests

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Michael Truex

Project type

Exploratory Research

Soil desiccation (drying), involving water evaporation induced by dry air injection and extraction, is a potentially robust remediation process to slow migration of inorganic or radionuclide…

Development of Electrical Resistivity Tomography Techniques for the Determination of Porous Media Water Saturations and Formation Factors in Laboratory Columns

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Mart Oostrom

Recently, DOE-RL has funded a project proposal to develop a laboratory Electrical Resistivity Tomography (ERT) technique to determine water saturations in the subsurface based on conductivity changes…

Determination of vadose zone water content using gas-phase partitioning tracers combined with time-lapse electrical conductivity measurements

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Mart Oostrom

Project type

Large-Scale EMSL Research

Water content is an important indicator of contaminant distribution and plays a governing role in contaminant transport within the vadose zone. Understanding the water content distribution is…

Capillary Fringe Effects on Volatile Organic Compound Transport from the Vadose Zone into Groundwater

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Mart Oostrom

Project type

Large-Scale EMSL Research

Soil vapor extraction (SVE) is the prevalent remediation approach for volatile organic contaminants in the vadose zone in the US, including at Department of Energy contaminated sites. A general, user…

Laboratory Testing of a Novel Unbalanced Recirculation Method for Field Matrix (Back) Diffusion Quantification

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Mart Oostrom

Project type

Exploratory Research

There is a distinct need to develop and validate field-scale methods for estimating matrix (back) diffusion because degradation and diffusion of contaminants at interfaces of low- and high…

EMSL Science Overview

Michael Truex

Projects

Subsurface Reductive Elimination of Trichloroethylene using Zero-Valent Iron Emplaced by Polymer Solutions

Flow and Transport of Edible Oil Emulsions for Enhanced Bioremediation

Determination of Water Saturation in Relatively Dry and Desiccated Porous Media using Gas-phase Partitioning Tracer Tests

Development of Electrical Resistivity Tomography Techniques for the Determination of Porous Media Water Saturations and Formation Factors in Laboratory Columns

Determination of vadose zone water content using gas-phase partitioning tracers combined with time-lapse electrical conductivity measurements

Capillary Fringe Effects on Volatile Organic Compound Transport from the Vadose Zone into Groundwater

Laboratory Testing of a Novel Unbalanced Recirculation Method for Field Matrix (Back) Diffusion Quantification