Index Catalog // ScholarsArchive@OSU

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:: evaluation of groundwater remediation strategies AN ABSTRACT OF THE THESIS OF Mark D. Humphrey for the

Molecular analysis of bacterial community dynamics during bioaugmentation studies in a soil column and at a field test site

Creator:: Li, Jun
Abstract:: 1,1,1-Tricholorethane (1,1,1-TCA), a widely used industrial solvents, is one of the most common subsurface contaminants. Transformation processes in the subsurface can result in the production of 1,1-dichioroethane (1,1-DCA) and 1,1- dichioroethene (l,1-DCE) from 1,1,1-TCA contamination, resulting in plumes of mixed chlorinated aliphatic hydrocarbons (CAHs). A butane-utilizing microorganism, strain 1 83BP,...
Resource Type:: Masters Thesis
Full Text:: Dynamics during Bioaugmentation Studies in a Soil Column and at a Field Test Site Abstract approved: Mark

Metabolic uncoupling of Shewanella oneidensis MR-1, under the presence of excess substrate and 3,3’,4’,5 tetrachlorosalicylanilide

Creator:: Saini, Gaurav
Abstract:: Dissociation between catabolism and anabolism, generically termed “metabolic uncoupling”, has been studied for aerobic cultures of Shewanella oneidensis MR-1. Under conditions promoting metabolic uncoupling, the cell yield diminishes while the substrate utilization rate remains largely unchanged. The effects of excess substrate conditions and TCS addition on the metabolism of pyruvate...
Resource Type:: Masters Thesis
Full Text:: excess substrate and 3,3’,4’,5 Tetrachlorosalicylanilide. Abstract Approved: Brian D

Numerical simulation of anaerobic reductive dechlorination of CAHs in continuous flow systems

Creator:: Mustafa, Nizar Ahmad
Abstract:: Halogenated organic compounds have had widespread and massive applications in industry, agriculture, and private households, for example, as degreasing solvents, flame retardants and in polymer production. They are released to the environment through both anthropogenic and natural sources. The most common chlorinated solvents present as contaminants include tetrachloroethene (PCE, perchloroethene)...
Resource Type:: Dissertation
Full Text:: . committee members, Mark Dolan, Jack Istok, Brian Wood and John Baham for his role as Graduate Council

Uranium and technetium bio-immobilization in intermediate-scale physical models of an in situ bio-barrier

Creator:: Michalsen, Mandy M.
Abstract:: Metal and hydrogen ion acidity and extreme nitrate concentrations typical of Department of Energy (DOE) legacy waste sites pose formidable challenges to successful implementation of in situ bio-immobilization. Intermediate-scale (~ 2.5 m), flow through models of an in situ bio-barrier were constructed to investigate U and Tc removal from groundwater...
Resource Type:: Dissertation
Full Text:: : ____________________________________________ Jonathan D. Istok Metal and hydrogen ion acidity and extreme nitrate

Evaluating dairy waste management systems ̓influence on fecal coliform concentration in runoff

Creator:: Grismer, Mark Edward
Abstract:: This paper examines the environmental factors influencing the die-off and transport of fecal coliform bacteria present in wastes applied to the land surface. These factors are examined specifically for dairy waste management systems and the net effect each system has on runoff water quality. A model is developed that considers...
Resource Type:: Masters Thesis
Full Text:: Fecal Coliform Concentration in Runoff AN ABSTRACT OF THE THESIS OF Mark Edward Grismer Department

Bioremediation of low-permeability, pentachlorophenol-contaminated soil by laboratory and full-scale processes

Creator:: Havighorst, Mark B.
Abstract:: Ex-situ bioremediation of saturated soil contaminated with pentachlorophenol and 2,3,5,6-TeCP is commonly accomplished by landfarming or by treatment in a bioreactor. Treating saturated, low-permeability soils in bioreactors, without pre-treatment requires a reactor capable of promoting anaerobic and/or aerobic removal of chlorophenols without transferring these contaminants to the aqueous phase. A...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Mark B. Havighorst for the degree

Civil engineering students' and practicing civil engineers' understanding of engineering concepts

Creator:: Urlacher, Mark A.
Abstract:: The purpose of this thesis is to explore civil engineering students’ and professional civil engineers' understanding of concepts within statics and fluid mechanics. The studies described herein begin to examine theories of situated cognition utilizing concept inventories, which are sets of multiple-choice questions where the incorrect answers are based on...
Resource Type:: Masters Thesis
Full Text:: ’ Understanding of Engineering Concepts AN ABSTRACT OF THE THESIS OF Mark A. Urlacher for

Reductive dechlorination of chlorophenols by vitamin B

Creator:: Smith, Mark Harrison
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE THESIS OF Mark H. Smith for the degree of Doctor of Philosophy in Civil

The effect of organic sorbent concentration on sorption kinetics

Creator:: Dolan, Mark E.
Abstract:: Batch sorption tests were conducted using 3,4-DCP and cellulose triacetate as the sorbate/sorbent pair. Sorbate concentrations in the liquid were sampled with time and analyzed by electron capture detector gas chromatography. Sorption was found to be a two stage process characterized by a rapid initial uptake followed by a extended...
Resource Type:: Masters Thesis
Full Text:: kinetics AN ABSTRACT OF THE THESIS OF Mark E. Dolan for the degree of Master of Science in Civil

Fate of THMs in Columbia River basalts during aquifer storage and recovery

Creator:: Bertrand, Danelle
Abstract:: Use of basalt aquifers for aquifer storage and recovery (ASR) systems is increasing in the Pacific Northwest due to the large aerial extent of the Columbia River Basalt Group and the suitability of basalts as ASR reservoirs. However, the degradation of trihalomethanes (THMs), potentially carcinogenic disinfection by-products present in the...
Resource Type:: Masters Thesis
Full Text:: : Jonathan D. Istok Dorthe Wildenschild Use of basalt aquifers for aquifer storage

Electron donor and chlorinated ethene effects on activity and community composition in anaerobic reductively dechlorinating consortia

Creator:: Sabalowsky, Andrew R.
Abstract:: This research focused on anaerobic transformation of trichloroethene (TCE), a groundwater contaminant. The mixed anaerobic Evanite culture (EV) was studied to determine community behavior and composition responses to different electron donors and chloroethene electron acceptors. The potential toxicity from high concentrations of TCE and its daughter product cis-1,2-dichloroethene (cDCE) was...
Resource Type:: Dissertation
Full Text:: like to express deep gratitude to the members of my advising committee, Drs. Peter Bottomley, Mark

Hybrid Survey Networks : Combining Real-time and Static GNSS Observations for Optimizing Height Modernization

Creator:: Weaver, Brian Jerald
Abstract:: To derive ellipsoid heights on passive marks with cm-level accuracy, many current specifications require the collection and adjustment of long-duration, static Global Navigation Satellite System (GNSS) sessions. To increase efficiency, a survey procedure that includes real-time kinematic vectors from a real-time GNSS network (RTN) was evaluated. Thirty different “hybrid” networks...
Resource Type:: Masters Thesis
Full Text:: ” networks involving three to nine Network RTK (NRTK) vectors per mark and some static GNSS vectors were

Reverse osmosis membranes fouling by biopolymers in wastewater secondary effluent and membrane cleaning

Creator:: Xu, Zhihua
Abstract:: Reverse osmosis (RO) is being increasingly used in treatment of domestic wastewater secondary effluent for potable and non-potable reuse. Among other foulants, dissolved biopolymers, i.e., proteins and polysaccharides, can lead to severe fouling of RO membranes. In this study, the roles of RO membrane surface properties in membrane fouling by...
Resource Type:: Masters Thesis
Full Text:: members of my committee, Professors Lewis Semprini and Mark Dolan, for devoting their valuable time to

Evaluation of Low-Impact Development (LID) Treatment Train at OSU-Benton County Green Infrastructure Facility

Creator:: Saduova, Alisha
Abstract:: Urban stormwater runoff with a high impervious area can significantly impact pollution concentrations of receiving water bodies. The use of low impact development (LID), which mimics the hydrological properties of the site before development, has been studied in an increasing number of studies, and the available database has shown to...
Resource Type:: Masters Thesis
Full Text:: , alkalinity, total copper (T Cu), dissolved copper (D Cu), total zinc (T Zn), and dissolved zinc (D Zn

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

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

Pollutants leached from selected species of wood in log storage waters

Creator:: Graham, John LeRoy
Abstract:: A study was conducted to determine the quantity and character of substances leached from logs floating in water, and the rate of leaching of these substances. The species of wood studied were Douglas fir and ponderosa pine. The research was carried out in a controlled laboratory environment with log sections...
Resource Type:: Masters Thesis
Full Text:: SPECIES OF WOOD IN LOG STORAGE WATERS Abstract approved: rank D. Scha burg A study was conducted to

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

Multiphase flow in homogeneous and bedded porous media

Creator:: Schroth, Martin H.
Resource Type:: Dissertation
Full Text:: . Abstract approved. 9epi.f.tANwy\Jonathan D. Istok Use of well-characterized porous media can improve the

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