Thomas Wietsma
Institution
Environmental Molecular Sciences Laboratory
ORCID
Projects
X-Ray Computed Tomography of Sediment Samples
Lead Institution
Pacific Northwest National Laboratory
Principal Investigator
Danielle Saunders
Project type
Contracted Time
X-Ray Computed Tomography of Sediment Samples
Lead Institution
Pacific Northwest National Laboratory
Principal Investigator
Michelle Valenta Snyder
Investigating spatiotemporal monitoring of soil organic matter using spectral induced polarization
Lead Institution
Pacific Northwest National Laboratory
Principal Investigator
Judith Robinson
Chemistry of Aerosols in Mexico City: MILAGRO 2006 study.
Lead Institution
Lawrence Berkeley National Laboratory
Principal Investigator
Mary Gilles
Project type
Large-Scale EMSL Research
Experimental Investigation of Strontium Mass Transfer in a Dynamic Vadose Zone - Aquifer - River System
Lead Institution
Pacific Northwest National Laboratory
Principal Investigator
Steven Yabusaki
Project type
Large-Scale EMSL Research
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
X-Ray Computed Tomography of Sediment Samples
Lead Institution
Pacific Northwest National Laboratory
Principal Investigator
Michelle Valenta Snyder
Protein Interactions and Interfaces
Lead Institution
Rutgers University
Principal Investigator
Gaetano Montelione
Project type
Large-Scale EMSL Research
Reaction Specificity of Nanoparticles in Solution (PNNL Scope # 42184/44076, Baer/Amonette Nano-Fe BES/EMSP project)
Lead Institution
Environmental Molecular Sciences Laboratory
Principal Investigator
Donald Baer
Project type
Exploratory Research
Pore-Scale Research Campaign: Development of Solute Transport Data Sets for Benchmarking Pore-Scale Numerical Simulators
Lead Institution
Pacific Northwest National Laboratory
Principal Investigator
Mart Oostrom
Project type
Research Campaign
1000 Soils Research Campaign
Lead Institution
Environmental Molecular Sciences Laboratory
Principal Investigator
Nancy Hess
Project type
MONet
Determination of hydraulic conductivity and soil moisture retention relations with the EMSL Hydraulic Properties Apparatus
Lead Institution
Pacific Northwest National Laboratory
Principal Investigator
Michael Fayer
Project type
Exploratory Research
Experimental and Theoretical Studies of Reaction Pathways for the Breakdown of Chlorinated Hydrocarbon Molecules by Metal and Metal Oxide Nanoparticles(including PNNL Scope # 42184/44076, Baer/Amonette/Tratnyek Nano-Fe BES/EMSP project)
Lead Institution
Pacific Northwest National Laboratory
Principal Investigator
James Amonette
Project type
Large-Scale EMSL Research
Role of Microenvironments and Transition Zones in Subsurface Reactive Contaminant Transport
Lead Institution
Pacific Northwest National Laboratory
Principal Investigator
James McKinley
Chrome Volatility
Lead Institution
Pacific Northwest National Laboratory
Principal Investigator
Gary Maupin
Project type
Exploratory Research
Column and flow cell experiments to study influence of wetting and mass transfer properties of organic chemical mixtures in vadose zone materials.
Lead Institution
University of Illinois at Urbana-Champaign
Principal Investigator
Albert Valocchi
Project type
Exploratory Research
Role of Microenvironments and Transition Zones in Subsurface Reactive Contaminant Transport
Lead Institution
Pacific Northwest National Laboratory
Principal Investigator
James McKinley
Project type
Exploratory Research
Role of Microenvironments and Transition Zones in Subsurface Reactive Contaminant Transport
Lead Institution
Pacific Northwest National Laboratory
Principal Investigator
James McKinley
Intermediate-scale experiments to investigate subsurface flow and transport of an apataite solution in support of Sr-90 sequestration at the Hanford 100N Area
Lead Institution
Pacific Northwest National Laboratory
Principal Investigator
James Szecsody
Project type
Exploratory Research
Micromodel Pore-Scale Displacement Studies of Brine and Supercritical CO2
Lead Institution
Pacific Northwest National Laboratory
Principal Investigator
Mart Oostrom
Project type
Exploratory Research
Hydro-Biogeochemical Process Dynamics in the Groundwater-Surface Water Interaction Zone
Lead Institution
Pacific Northwest National Laboratory
Principal Investigator
John Zachara
Demonstration of the Multiple-Location Saturation-Pressure Apparatus for Multiphase Porous Media Systems
Lead Institution
Netherlands Organization for Applied Scientific Research TNO-NITG
Principal Investigator
Cornelis Hofstee
Project type
Exploratory Research
Role of Microenvironments and Transition Zones in Field scale microbial ecology and biogeochemistry
Lead Institution
Pacific Northwest National Laboratory
Principal Investigator
James McKinley
Project type
Exploratory Research
Hydro-Biogeochemical Process Dynamics in the Groundwater-Surface Water Interaction Zone
Lead Institution
Pacific Northwest National Laboratory
Principal Investigator
John Zachara
An Integrated Approach to Quantifying the Coupled Biotic and Abiotic Mechanism, Rates and Long-Term Performance of Phosphate Barriers for In Situ Immobilization of Uranium
Lead Institution
Pacific Northwest National Laboratory
Principal Investigator
Dawn Wellman
Project type
Large-Scale EMSL Research
Role of Microenvironments and Transition Zones in Field Scale Microbial Ecology and Biogeochemistry
Lead Institution
Pacific Northwest National Laboratory
Principal Investigator
James McKinley
Project type
Limited Scope
Rhizosphere processes at molecular to core scale
Lead Institution
Environmental Molecular Sciences Laboratory
Principal Investigator
Nancy Hess
Desiccation of Porous Media to Limit Contaminant Migration
Lead Institution
Auburn University
Principal Investigator
Jacob Dane
Project type
Large-Scale EMSL Research
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
Influences of Hydrologic Exchange Flows on River Corridor and Watershed Biogeochemical Function
Lead Institution
Pacific Northwest National Laboratory
Principal Investigator
James Stegen
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
A Novel Experimental Method to Obtain Apparent Viscosity of Shear-Thinning Fluids in Saturated Porous Media
Lead Institution
Pacific Northwest National Laboratory
Principal Investigator
Mart Oostrom
Project type
Exploratory Research
PhenoAccess: Physiological Phenotyping of Brachypodium Accessions
Lead Institution
Environmental Molecular Sciences Laboratory
Principal Investigator
Amir Ahkami
Lab Studies of Phytoremediation & Apatite Sequestration (PNNL Scope #46524
Lead Institution
Pacific Northwest National Laboratory
Principal Investigator
James Szecsody
Project type
Exploratory Research
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
Experimental Determination of Carbon Tetrachloride Mass Fluxes into Groundwater from Vadose Zone Sources
Lead Institution
Pacific Northwest National Laboratory
Principal Investigator
Mart Oostrom
Project type
Exploratory Research
Influences of Hydrologic Exchange Flows on River Corridor and Watershed Biogeochemical Function
Lead Institution
Pacific Northwest National Laboratory
Principal Investigator
James Stegen
Structural Genomics Collaborative Access Team (CAT)
Lead Institution
Miami University
Principal Investigator
Michael Kennedy
Experimental Investigation of Sr-90 Subsurface Contamination Sequestration in Hanford 100N Area Sediments by Surface Infiltration of an Apatite Solution
Lead Institution
Pacific Northwest National Laboratory
Principal Investigator
James Szecsody
Project type
Large-Scale EMSL Research
Subsurface Behavior of Ethanol-Blended Gasoline: Intermediate-Scale Flow Cell Experimentation to Develop a Data Base for Numerical Model Testing and Verification
Lead Institution
Pacific Northwest National Laboratory
Principal Investigator
Mart Oostrom
Project type
Exploratory Research
Influences of Hydrologic Exchange Flows on River Corridor and Watershed Biogeochemical Function
Lead Institution
Pacific Northwest National Laboratory
Principal Investigator
James Stegen
Demonstration of the Capability of Mobility-Controlled-Flooding Technology to Overcome Heterogeneity Induced Bypassing in Subsurface Remediation (PNNL LDRD #90001
Overcoming Heterogeneity Induced Bypassing)
Lead Institution
Pacific Northwest National Laboratory
Principal Investigator
Lirong Zhong
Project type
Exploratory Research
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
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
Imaging and Analysis of Root System Architecture with an Automated Non-invasive Phenotyping System
Lead Institution
Environmental Molecular Sciences Laboratory
Principal Investigator
Amir Ahkami
Thrust 4: Model Hematite Thin Films and Bacterial Iron Reduction (LDRD: Cytochrome and Whole Cell Interactions with Iron Oxides)
Lead Institution
Pacific Northwest National Laboratory
Principal Investigator
Timothy Droubay
Project type
Grand Challenge
Coprecipitation of Aluminum Hydroxides and Calcium Carbonates during Denitrification: A Stabilization Strategy for Oxidized Metals and Radionuclides
Lead Institution
Oregon State University
Principal Investigator
Jonathan Istok
Project type
Large-Scale EMSL Research
S & T Road Mapping for Needs From All Sources (Zachara EM-ST, PNNL Scope #30998)
Lead Institution
Pacific Northwest National Laboratory
Principal Investigator
John Zachara
Project type
Exploratory Research
X Ray Tomography of Intact Hanford Cores
Lead Institution
Pacific Northwest National Laboratory
Principal Investigator
Adam Mangel
Thrust Area 3:Mutagenesis and Functional Characterization of Shewanella oneidensis Genes Involved in Fe(III) and Mn(IV) Oxide Reduction (LDRD #3)
Lead Institution
Environmental Molecular Sciences Laboratory
Principal Investigator
Alex Beliaev
Project type
Grand Challenge