Research Activities at U.S. Government Agencies in Subsurface Reactive Transport Modeling

The fate of contaminants in the environment is controlled by both chemical reactions and transport phenomena in the subsurface. Our ability to understand the significance of these processes over time requires an accurate conceptual model that incorporates the various mechanisms of coupled chemical and physical processes. Adsorption, desorption, ion exchange, precipitation, dissolution, growth, solid solution, redox, microbial activity, and other processes are often incorporated into reactive transport models for the prediction of contaminant fate and transport. U.S. federal agencies use such models to evaluate contaminant transport and provide guidance to decision makers and regulators for treatment issues. We provide...

Categories: Publication; Types: Citation; Tags: ARS, Agricultural Research Service, BTEX, CNWRA, Center for Nuclear Waste Regulatory Analyse, All tags... DCE, DO, DST, Drift Scale Test, EDTA, EM, EMSP, ERD, ERDC, ERSP, Ecosystems Research Division, Environmental Management Science Program, Environmental Remediation Science Program, GMS, Groundwater Modeling System, HE, INL, ISCMEM, Idaho National Laboratory, Interagency Steering Committee on Multimed, LBNL, LLNL, Lawrence Berkeley National Laboratory, Lawrence Livermore National Laboratory, NABIR, NTS, Natural and Accelerated Bioremediation Rese, Nevada Test Site, OBER, ORNL, OST, Oak Ridge National Laboratory, Office of Biological and Environmental Resea, Office of Environmental Management, Office of Science and Technology, PNNL, Pacific Northwest National Laboratory, RWMC, Radioactive Waste Management Complex, SCM, TCE, U.S. Army Corps of Engineers, U.S. Army Engineer Research and Development, U.S. Department of Defense, U.S. Department of the Army, U.S. Nuclear Regulatory Commission, USACE, USDOA, USDOD, USNRC, WIPP, Waste Isolation Pilot Plant, and xylene, benzene, dichloroethylene, dissolved oxygen, ethylbenzene, ethylenediaminetetraacetic acid, high explosive, surface complexation model, toluene, trichlorethylene, Fewer tags

Microbial community analyses of groundwater collected during an enhanced bioremediation experiment of trichlorethylene in a fractured rock aquifer, West Trenton, NJ (2008-2015)

These datasets contain microbial community data from groundwater samples collected at an in situ bioremediation site located at the former Naval Air Warfare Center (NAWC), West Trenton, NJ. DNA was extracted from groundwater samples collected from monitoring wells at the NAWC study site from July 2008 through July 2015 and analyzed for microbial community structure. Sample collection coincided with a groundwater bioremediation experiment investigating the microbial degradation of the contaminant trichloroethylene (TCE) prevalent in the targeted region of the aquifer. Nutrient addition and a microbial consortium, commercially developed to stimulate the degradation of TCE and TCE byproducts, was introduced to the...

Categories: Data; Tags: 16S rRNA sequencing, Environmental Health, Genetics, Naval Air Warfare Center, Trichlorethylene, All tags... USGS Science Data Catalog (SDC), Water Quality, Water Resources, West Trenton, NJ, aquifer, bioaugmentation, bioremediation, contamination and pollution, groundwater, microbial analysis, taxonomy, Fewer tags