Charles Werth

Spatial Architecture of Extracellular Electron Shuttle Production for Iron Cycling in a Model Soil Habitat

Lead Institution

University of Texas at Austin

Principal Investigator

Charles Werth

Project type

Exploratory Research

Iron minerals are some of the most reactive and ubiquitous components of soils, sediments, and groundwater. They contribute to the oxidation and reduction of many pollutants and natural organic…

Fracking Optimization and In-Situ Characterization of Rock and Other Materials Permeability, Chemistry and Fracture Distributions

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Carlos Fernandez

Through this proposal EMSL will provide experimental resources for enhanced energy production and subsurface science discovery that supports the needs of DOE and the nation. These proposed…

Microbial Adaptation in Response to Environmental Stress in Polluted Groundwater Aquifers

Lead Institution

University of Texas at Austin

Principal Investigator

Charles Werth

Project type

Exploratory Research

Steep gradients in chemical concentration, redox potential, pH, and temperature are common in the environment. They are often "hotspots" of microbial activity and diversity. For example,…

Evaluation of Pore scale porous media effects on reactive transport in groundwater

Lead Institution

University of Texas at Austin

Principal Investigator

Charles Werth

Project type

Exploratory Research

We request use of the EMSL Subsurface Flow and Transport Laboratory?s syringe pumps and work space in order for Thomas Willingham to complete the experimental phase of his Doctoral Research…

Determining the Effects of Organic Chemical Mixtures and Wastewater on DNAPL Migration

Lead Institution

Sandia National Laboratory

Principal Investigator

Hongkyu Yoon

Project type

Large-Scale EMSL Research

DNAPL spill and water discharge scenarios at the ground surface may significantly impact DNAPL migration, entrapment, and subsequent effects on groundwater quality. A notable example is the Hanford…

Wettability and mass transfer effects on flow and transport of mixed DNAPL in Hanford Site sediments

Lead Institution

University of Texas at Austin

Principal Investigator

Charles Werth

Project type

Large-Scale EMSL Research

Approximately 750,000 kg of DNAPL containing carbon tetrachloride (CCl4) was discharged to the vadose zone at the Hanford site. Assuming equilibrium partitioning among phases, an estimated 64%…

Development of a Microfluidics Flow and Transport Laboratory

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Mart Oostrom

Project type

Large-Scale EMSL Research

The Environmental Spectroscopy and Biogeochemistry (ESB) Facility, in collaboration with the University of Illinois at Champaign/Urbana, proposes to develop a microfluidics capability to investigate…

Pore-Scale Evaluation of the Effect of Bioavailable Iron on U(Vi) Reduction Kinetics and U(Iv) Re-Oxidation of Relevance to Bioremediation Efforts at the Hanford Site

Lead Institution

University of Texas at Austin

Principal Investigator

Charles Werth

Project type

Large-Scale EMSL Research

Scores of hazardous waste sites are contaminated with uranium, primarily due to uranium mining and processing by the Department of Energy over a 40-year period between 1940 and 1980 (Wolbarst et al.,…

Pore-Scale Investigation of the Impacts of Transverse Mixing and Solution Chemistry on Mineral Precipitation Relevant to CO2 Sequestration

Lead Institution

ExxonMobil Research and Engineering

Principal Investigator

Changyong Zhang

Project type

Exploratory Research

Transverse mixing limited reactive transport resulting in mineral precipitation impact groundwater remediation and geological sequestration of CO2, due to reductions in effective porosity and…

Projects