Thomas Wietsma

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

The PNNL Scientific Focus Area (SFA) will resolve critical Hanford and basic subsurface science issues through integrated, multi-disciplinary, science-theme focused research on the role of…

Role of Microenvironments and Transition Zones in Subsurface Reactive Contaminant Transport

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

James McKinley

This is a renewal proposal for a previous collaborative effort between the PNNL Scientific Focus Area (SFA) and EMSL. The research proposed will resolve critical Hanford and basic subsurface science…

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

The attached proposal has recently been funded after an extensive peer review. The unique capabilities of the Subsurface Flow and Transport Experimental Laboratory in the EMSL are needed to complete…

Micromodel Pore-Scale Displacement Studies of Brine and Supercritical CO2

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

Mart Oostrom

Project type

Exploratory Research

Supercritical carbon dioxide (scCO2) sequestration in deep saline aquifers or reservoirs is, to a large extent, affected by porous medium properties, fluid properties, and interfacial interactions…

Hydro-Biogeochemical Process Dynamics in the Groundwater-Surface Water Interaction Zone

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

John Zachara

This is a renewal proposal for a previous collaborative effort between the PNNL Scientific Focus Area (SFA) and EMSL.PNNL Scientific Focus Area. The PNNL SFA will develop a predictive understanding…

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

Parameter values for saturation-pressure models are either obtained from the literature or determined experimentally. The experimental apparati used to determine data for systems involving NAPL are…

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

This is a renewal proposal for a previous collaborative effort between the PNNL Scientific Focus Area (SFA) and EMSL. The research proposed will resolve critical Hanford and basic subsurface science…

Hydro-Biogeochemical Process Dynamics in the Groundwater-Surface Water Interaction Zone

Lead Institution

Pacific Northwest National Laboratory

Principal Investigator

John Zachara

This is a renewal proposal for a previous collaborative effort between the PNNL Scientific Focus Area (SFA) and EMSL.PNNL Scientific Focus Area. The PNNL SFA will develop a predictive understanding…

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

Operations related to nuclear energy and weapons production have resulted in numerous areas, worldwide, exhibiting surface and subsurface uranium contamination of geologic media. Within the United…

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

This is a renewal proposal for a previous collaborative effort between the PNNL Scientific Focus Area (SFA) and EMSL. The research proposed will resolve critical Hanford and basic subsurface science…

Rhizosphere processes at molecular to core scale

Lead Institution

Environmental Molecular Sciences Laboratory

Principal Investigator

Nancy Hess

The amount of C in soil far exceeds the C content of atmosphere as well as the amount C stored above ground as plant biomass. The C fluxes between atmosphere and biomass are huge, many orders of…

EMSL Science Overview

Thomas Wietsma

Projects

Role of Microenvironments and Transition Zones in Subsurface Reactive Contaminant Transport

Role of Microenvironments and Transition Zones in Subsurface Reactive Contaminant Transport

Intermediate-scale experiments to investigate subsurface flow and transport of an apataite solution in support of Sr-90 sequestration at the Hanford 100N Area

Micromodel Pore-Scale Displacement Studies of Brine and Supercritical CO2

Hydro-Biogeochemical Process Dynamics in the Groundwater-Surface Water Interaction Zone

Demonstration of the Multiple-Location Saturation-Pressure Apparatus for Multiphase Porous Media Systems

Role of Microenvironments and Transition Zones in Field scale microbial ecology and biogeochemistry

Hydro-Biogeochemical Process Dynamics in the Groundwater-Surface Water Interaction Zone

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

Role of Microenvironments and Transition Zones in Field Scale Microbial Ecology and Biogeochemistry

Rhizosphere processes at molecular to core scale