Index Catalog // ScholarsArchive@OSU

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

Geohydrologic conditions on a steep forested slope : modeling transient piezometric response to precipitation

Creator:: Bransom, Mark
Abstract:: Two hilislope sites in the central Oregon Coast Range were instrumented and monitored for winter precipitation and saturated and unsaturated subsurface conditions. The study sites were near-ridge depressions typically known as headwalls. Based on results of the monitoring, two existing mathematical models were adapted to predict piezometric levels in headwalls...
Resource Type:: Dissertation

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

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

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

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

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

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:: their role in the biological transformation of TCE and c-DCE AN ABSTRACT OF THE THESIS OF Sanjay

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

ScholarsArchive@OSU

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

Geohydrologic conditions on a steep forested slope : modeling transient piezometric response to precipitation

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

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

Reductive dechlorination of chlorophenols by vitamin B

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

The effect of organic sorbent concentration on sorption kinetics

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

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

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

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