Index Catalog // ScholarsArchive@OSU

Groundwater flow and radionuclide transport in fault zones in granitic rock

Creator:: Geier, Joel E.
Abstract:: Fault zones are potential paths for release of radioactive nuclides from radioactive-waste repositories in granitic rock. This research considers detailed maps of en echelon fault zones at two sites in southern Sweden, as a basis for analyses of how their internal geometry can influence groundwater flow and transport of radioactive...
Resource Type:: Dissertation

The Protection of Groundwater - Specifically Oil and Gas Contamination

Creator:: Stash, Karen M.
Abstract:: Groundwater is a vital resource and efforts must be made to protect its quality. In certain areas, its quality has been threatened by the introduction of oil and gasoline, many times originating from underground storage tanks. Massachusetts has directly reacted to this concern about groundwater quality by promulating a Massachusetts...
Resource Type:: Capstone Project
Full Text:: present uses, groundwater and soil quality, and potential neighboring sources of pollution. As an intern

The Effects of Layered Differences in Hydraulic Conductivity of Groundwater : An Estimation of Residence Time for Solute Transport

Creator:: McCarthy, Alexander J.
Abstract:: In order to determine how contaminants from pharmaceutical, agriculture, and industry will move through groundwater systems, it is imperative to further our understanding of the relationship between physical, biological, and chemical properties of aquifers and transport and transformation of these products. Several studies have explored how heterogeneities in groundwater systems...
Resource Type:: Masters Thesis
Full Text:: 18, 2016. Title: The Effects of Layered Differences in Hydraulic Conductivity of Groundwater

Measuring in situ reductive dechlorination rates in trichloroethene-contaminated groundwater

Creator:: Hageman, Kimberly J.
Abstract:: Trichloroethene (TCE) is the most frequently detected organic contaminant in groundwater, is classified as a probable human carcinogen, and exhibits toxicological effects on the human endocrine, immune, developmental, and reproductive systems. While significant research efforts have been devoted to the development of strategies for remediating TCE-contaminated groundwater, their advancement is...
Resource Type:: Dissertation
Full Text:: Dechlorination Rates in Trichloroethene- Contaminated Groundwater. Abstract approved: Jennifer A. Field

In situ transformation of toluene and xylene to benzylsuccinic acid analogs in contaminated groundwater

Creator:: Reusser, Dominik E.
Abstract:: The rate of removal of benzene, toluene, ethylbenzene and the xylene isomers (BTEX) from contaminated groundwater is needed to design remediation processes. Benzylsuccinic acid (BSA) and methyl-benzylsuccinic acid (methyl BSA) are unambiguous metabolites of anaerobic BTEX biodegradation. An analytical method for quantitative determination of BSA in groundwater samples was developed....
Resource Type:: Masters Thesis
Full Text:: contaminated groundwater is needed to design remediation processes. Benzylsuccinic acid (BSA) and methyl

Aerobic biotransformation of chlorinated aliphatic hydrocarbons by a benzyl alcohol grown mixed culture : cometabolism, mechanisms, kinetics and modeling

Creator:: Tejasen, Sarun
Abstract:: The aerobic transformation of TCE and cis-DCE by a tetrabutoxysilane-grown microorganism (Vancheeswaran et al., 1999) led to the investigation of novel substrates, including benzyl alcohol, for promoting cometabolism. The culture grew on carboxylic compounds and alcohols, but did not grow on formate, methanol, methane, propane, butane, ethylene, benzene, toluene, or...
Resource Type:: Dissertation
Full Text:: carcinogen that is one of the most frequently found organic contaminants in groundwater. The Environmental

Kinetic and modeling investigations of the anaerobic reductive dechlorination of chlorinated ethylenes using single and binary mixed cultures and silicon-based organic compounds as slow-release substrates

Creator:: Yu, Seungho
Abstract:: This study investigated complete reductive dechlorination of chlorinated aliphatic hydrocarbons (CAHs) over a broad range of concentrations. Tetrabutoxysilane (TBOS), as a slow-release anaerobic substrate, was studied for enhanced reductive dechlorination of tetrachioroethylene (PCE) present as a dense non-aqueous liquid (DNAPL). Four different site-mixed cultures were used in the study: Site-300...
Resource Type:: Dissertation
Full Text:: microcosm containing groundwater from Site 300 of LLNL: (a) TBOS, TKEBS, and their hydrolysis products, (b

Abiotic and biological transformation of TBOS and TKEBS, and their role in the biological transformation of TCE and c-DCE

Creator:: Vancheeswaran, Sanjay
Abstract:: At Site-300, Lawrence Livermore National Laboratory (LLNL), CA, trichloroethene (TCE) is present along with tetraalkoxysilanes such as tetrabutoxysilane (TBOS) and tetrakis(2-ethylbutoxy) silane (TKEBS), as subsurface contaminants. Intrinsic transformation of TCE to cis-dichloroethene (c-DCE) was observed in the groundwater at locations co-contaminated with TBOS or TKEBS. Attenuation of TBOS and TKEBS...
Resource Type:: Masters Thesis
Full Text:: transformation of TCE to cis-dichloroethene (c-DCE) was observed in the groundwater at locations co-contaminated

Fluorinated and deuterated surrogates for quantifying microbial transformation of chlorinated ethenes and ethanes in anaerobic groundwater

Creator:: Ennis, Elliot G.
Abstract:: Chlorinated aliphatic hydrocarbons (CAHs) such as vinyl chloride (VC) and 1,-2 dichioroethane (DCA), are wide-spread groundwater pollutants found at many contaminated field sites around the world. Quantitative tools are needed to determine the in situ rates of VC and DCA transformation to ethene in contaminated groundwater. The objective of this...
Resource Type:: Masters Thesis
Full Text:: Ethanes in Anaerobic Groundwater. Abstract approved: I- Jennifer A. Field Chlorinated aliphatic

Temporal and spatial variability of groundwater nitrate in the southern Willamette Valley of Oregon

Creator:: Mutti, Jeffrey Glenn
Abstract:: Groundwater nitrate contamination is a well-documented issue in the Southern Willamette Valley (SWV) of Oregon, as a Groundwater Management Area (GWMA) has recently been declared. As a GWMA, groundwater nitrate monitoring must occur until regional concentrations are below 7 mg/L NO3-N. However, the presence of temporal variability can make it...
Resource Type:: Masters Thesis
Full Text:: . Title: Temporal and Spatial Variability of Groundwater Nitrate in the Southern Willamette Valley of

ScholarsArchive@OSU

Groundwater flow and radionuclide transport in fault zones in granitic rock

The Protection of Groundwater - Specifically Oil and Gas Contamination

The Effects of Layered Differences in Hydraulic Conductivity of Groundwater : An Estimation of Residence Time for Solute Transport

Measuring in situ reductive dechlorination rates in trichloroethene-contaminated groundwater

In situ transformation of toluene and xylene to benzylsuccinic acid analogs in contaminated groundwater

Aerobic biotransformation of chlorinated aliphatic hydrocarbons by a benzyl alcohol grown mixed culture : cometabolism, mechanisms, kinetics and modeling

Kinetic and modeling investigations of the anaerobic reductive dechlorination of chlorinated ethylenes using single and binary mixed cultures and silicon-based organic compounds as slow-release substrates

Abiotic and biological transformation of TBOS and TKEBS, and their role in the biological transformation of TCE and c-DCE

Fluorinated and deuterated surrogates for quantifying microbial transformation of chlorinated ethenes and ethanes in anaerobic groundwater

Temporal and spatial variability of groundwater nitrate in the southern Willamette Valley of Oregon

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