Index Catalog // ScholarsArchive@OSU

Quantification of advection and dispersion in lateral subsurface flowpaths at the hillslope-scale

Creator:: Victory, Nichole I.
Abstract:: It is becoming increasingly important to understand fundamental hillslope-scale hydrological processes. Most hillslope-sale transport experiments have generally focused on conceptual findings or other aspect of flow behavior, rather than the quantification of the mass transport mechanisms of advection and dispersion. When the velocities have been quantified, dispersion has been mentioned...
Resource Type:: Masters Thesis
Full Text:: : __________________________________________ Jonathan D. Istok It is becoming increasingly important to understand fundamental hillslope

Multivariate geostatistical analysis of groundwater contamination by pesticide and nitrate

Creator:: Smyth, Jeffrey D.
Abstract:: A field study was conducted to determine the applicability of multivariate geostatistical methods to the problem of estimating and simulating pesticide concentrations in groundwater from measured concentrations of nitrate and pesticide, when pesticide is undersampled. Prior to this study, no published attempt had been made to apply multivariate geostatistics to...
Resource Type:: Masters Thesis
Full Text:: , Oregon State University, Corvallis, Oregon 97331) Jonathan D. Istok Agricultural Engineering and

Experimental design of physical aquifer models for evaluation of groundwater remediation strategies

Creator:: Humphrey, Mark D.
Abstract:: Groundwater resources have become seriously threatened due to improper use by industrial, municipal, and even public sectors. Widespread contamination of aquifer systems has jeopardized human health and the environment and methods for restoring these systems are needed. Biological and chemical in situ remediation, where contaminants are degraded within the natural...
Resource Type:: Masters Thesis
Full Text:: : Jonathan D. Istok Groundwater resources have become seriously threatened due to improper use by

Assessing groundwater vulnerability to contamination using finite element modeling and geographic information systems

Creator:: Rea, Alan H.
Abstract:: A method was developed for assessing the vulnerability of groundwater to contamination from contaminant sources at the soil surface, using a numerical groundwater flow model linked to a digital map database. The method was applied using the pcARC/INFO Geographic Information System (GIS) to input, store, and manipulate base maps, resulting...
Resource Type:: Masters Thesis
Full Text:: Systems Abstract approved: T* Jonathan D. Istok A method was developed for assessing the

Anaerobic reductive dechlorination of TCE and TCFE in TCE contaminated sediments : enhanced bioremediation and bioaugmentation

Creator:: Lee, Jae-Hyuk
Abstract:: This research focused on the enhanced reductive dechlorination of trichloroethene (TCE) and its surrogate, trichlorofluoroethene (TCFE), using two bioremediation methods in anaerobic conditions. Two anaerobic bioremediation studies were conducted to investigate the effects of microbial communities in the presence of different electron acceptors and donors during anaerobic reductive dechlorination of...
Resource Type:: Dissertation
Full Text:: : -------"--------------------------- Jonathan D. Istok This research focused on the enhanced reductive dechlorination of trichloroethene

Precipitation estimation in mountainous terrain using multivariate geostatistics

Creator:: Hevesi, Joseph A.
Abstract:: Estimates of average annual precipitation (AAP) are-needed for hydrologic modeling at Yucca Mtn., Nevada, site of a proposed, high-level nuclear waste repository. Historical precipitation data and station elevation were obtained for stations in southern Nevada and southeastern California. Elevations for 1,531 additional locations were obtained from topographic maps. The sample...
Resource Type:: Masters Thesis
Full Text:: USING MULTIVARIATE CIDSTAILSIICS: Abstract approved: Redacted for Privacy Jonathan D. Istok ABSTRACT

A kinetic model for dissolved gas transport in the presence of trapped gas

Creator:: Donaldson, Jeremy H.
Abstract:: Understanding the processes involved in the transport of dissolved gas plumes in groundwater aquifers is essential for comprehending the effect that these transport processes can have on site characterization and remedial design applications. Previous laboratory and field studies have indicated that dissolved gas transport in groundwater can be greatly affected...
Resource Type:: Masters Thesis
Full Text:: in the Presence of Trapped Gas. Abstract approved: Jonathan D. Istok Understanding the

Physiochemical mechanisms for the transport and retention of technetium

Creator:: Jansik, Danielle P.
Abstract:: Understanding the transport and retention of radionuclides in the environment is important for protecting freshwater supplies and minimizing impact to biologic systems. Technetium-99 (Tc⁹⁹) is a radionuclide of interest due to its long half-life (2.13 x 10⁵ years) and toxicity. In the form of pertechnetate (TcO₄⁻), Tc is expected to...
Resource Type:: Dissertation
Full Text:: for the Transport and Retention of Technetium Abstract approved: Jonathan D. Istok

A method for quantifying macroporosity

Creator:: Vermeul, Vincent R.
Resource Type:: Masters Thesis
Full Text:: Abstract approved: Jonathan D. Istok A method was developed for determining the number, shape and size

Mass transfer constraints on the feasability on in situ bioremediation of contaminated groundwater

Creator:: Fry, Virginia A., 1959-
Resource Type:: Dissertation
Full Text:: . Chevron Research and Technology. also funded this research CONTRIBUTION OF AUTHORS Jonathan D. Istok

ScholarsArchive@OSU

Quantification of advection and dispersion in lateral subsurface flowpaths at the hillslope-scale

Multivariate geostatistical analysis of groundwater contamination by pesticide and nitrate

Experimental design of physical aquifer models for evaluation of groundwater remediation strategies

Assessing groundwater vulnerability to contamination using finite element modeling and geographic information systems

Anaerobic reductive dechlorination of TCE and TCFE in TCE contaminated sediments : enhanced bioremediation and bioaugmentation

Precipitation estimation in mountainous terrain using multivariate geostatistics

A kinetic model for dissolved gas transport in the presence of trapped gas

Physiochemical mechanisms for the transport and retention of technetium

A method for quantifying macroporosity

Mass transfer constraints on the feasability on in situ bioremediation of contaminated groundwater

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