Index Catalog // ScholarsArchive@OSU

Uptake and metabolism of polycyclic aromatic hydrocarbons by the marine alga Acrosiphonia coalita

Creator:: Christensen, Kristi
Abstract:: The purpose of this research was to examine the ability of the cold water, green, marine, macroalga Acrosiphonia coalita to take up and metabolize polycyclic aromatic hydrocarbons (PAH) from seawater. Axenic suspension tissue cultures of the alga were contacted with seawater containing PAH in sealed experimental vessels. Uptake time courses...
Resource Type:: Masters Thesis
Full Text:: Alga Acrosiphonia coalita Abstract approved: . . Gregory L. Rorrer The

Cultivation of Laminaria saccharina gametophyte cell cultures in a stirred-tank photobioreactor

Creator:: Qi, Hanshi
Resource Type:: Masters Thesis
Full Text:: saccharina Gametophyte Cell Cultures in a Stirred-Tank Photobioreactor Abstract approved: Dr. Gregory L

Suspect Screening of Hydrocarbon surfactants in AFFFs and AFFF-Contaminated Groundwater by High Resolution Mass Spectrometry

Creator:: Garcia, Raymmah A.
Abstract:: Aqueous film forming foams (AFFFs) are proprietary mixtures containing hydrocarbon surfactants and per-and polyfluoroalkyl substances (PFASs) that are used to extinguish hydrocarbon-based fuel fires. There is limited information on hydrocarbon surfactants in AFFFs and AFFF-contaminated groundwater even though they are more abundant (5-10% w/w) than PFASs (0.9-1.5% w /w) in...
Resource Type:: Masters Thesis
Full Text:: -film-foam/ (October 16), 5. Buck, R. C.; Murphy, P. M.; Pabon, M., Chemistry, Properties, and Uses

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:: Osmsis pressuz semi-rmethj1e nenthrane concerdrated -r- dilute so1utcn > so1utin water flow Reverse

Natural Organic Matter Surface Coverage as a Predictor of Heteroaggregation between Nanoparticles and Colloids

Creator:: Oney, Dylan M.
Abstract:: Heteroaggregation of nanoparticles with naturally occurring colloids has been shown to be an important process in nanoparticle fate and transport in the aquatic environment. The advent of a functional assay to measure heteroaggregation attachment efficiencies has opened the door for further mechanistic studies. It is well known that natural organic...
Resource Type:: Masters Thesis
Full Text:: g/L GBs. y = 0.0302x + 0.0006 R² = 0.9997 0 0.02 0.04 0.06 0.08 0.1 0.12 0.14 0.16

Low Level Quantification of 1,4-Dioxane and Investigation of 1,4-Dioxane Co-Metabolism by Mycobacterium sp. 1A.

Creator:: McKeage, Kevin J.
Abstract:: 1,4-Dioxane (dioxane) is a probable human carcinogen and is often found comingled with chlorinated aliphatic hydrocarbon (CAH) contamination since dioxane is used as a stabilizer in CAH solutions. Dioxane is miscible in water, has a low K[subscript ow], low H[subscript cc], and is highly recalcitrant in the environment. The presence...
Resource Type:: Masters Thesis
Full Text:: also been used successfully in several instances of field application (Wilson and Wilson, 1985

Design of a microstructured liquid-liquid separator utilizing a capillary pressure gradient

Creator:: Zoebelein, Conor M.
Abstract:: Continuous liquid-liquid two-phase separation is needed in microfluidic devices. Due to the small characteristic lengths of microreactors, phenomena such as mass transport via molecular diffusion occur within seconds. Typically, discrete slugs of an extract are created within microchannels for high specific interfacial area to achieve intensified mass transfer. A challenge...
Resource Type:: Masters Thesis
Full Text:: ]. inertial force Reynolds Number: R e viscous force HvD   [Eq. 4] Where  is the fluid

Physiological response of Nitrosomonas europaea to oxytetracycline, chromium, and silver

Creator:: Schaerer, Morgan A.
Abstract:: Nitrosomonas europaea carries out the first step in the biological nitrogen removal process in wastewater treatment by oxidizing ammonia to nitrite. It has been shown to be sensitive to a wide range of contaminants. The antibiotic oxytetracycline and the heavy metals chromium and silver have been found in wastewater influent....
Resource Type:: Masters Thesis
Full Text:: in e ex p er im en t re su lt s. R ef er en ce H al li n g - S o re n so n

The Effect of Flowrate on Trapping in a Two-phase System as it Relates to CO₂ Sequestration

Creator:: Williams, Kristal A.
Abstract:: This research examines the independent and combined effects of drainage and imbibition flowrate on nonwetting phase capillary trapping in a two-phase, porous medium system. A uniform system of cubic arrangement and non-uniform systems of both cubic and rhombohedral arrangements were examined in order to analyze and compare the nonwetting phase...
Resource Type:: Masters Thesis
Full Text:: Page Figure 1: CO2 phase change with depth. Critical depth at approximately 800m. Wilson et al

Opening Pandora’s Box: Machine learning applications for chemical forensics and non-target chemical analyses

Creator:: Davila-Santiago, Emmanuel
Abstract:: Water bodies act as chemical data loggers that contain tens of thousands of molecules that represent the sum of the biological, chemical, and physical processes occurring within a watershed. We hypothesize that unique chemical signatures present within a water sample can be informative of upstream processes. By extracting non-polar organic...
Resource Type:: Masters Thesis
Full Text:: achieved by using R packages designed to work on mass spectrometry data, including Metfrag 20, Envimass

ScholarsArchive@OSU

Uptake and metabolism of polycyclic aromatic hydrocarbons by the marine alga Acrosiphonia coalita

Cultivation of Laminaria saccharina gametophyte cell cultures in a stirred-tank photobioreactor

Suspect Screening of Hydrocarbon surfactants in AFFFs and AFFF-Contaminated Groundwater by High Resolution Mass Spectrometry

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

Natural Organic Matter Surface Coverage as a Predictor of Heteroaggregation between Nanoparticles and Colloids

Low Level Quantification of 1,4-Dioxane and Investigation of 1,4-Dioxane Co-Metabolism by Mycobacterium sp. 1A.

Design of a microstructured liquid-liquid separator utilizing a capillary pressure gradient

Physiological response of Nitrosomonas europaea to oxytetracycline, chromium, and silver

The Effect of Flowrate on Trapping in a Two-phase System as it Relates to CO₂ Sequestration

Opening Pandora’s Box: Machine learning applications for chemical forensics and non-target chemical analyses

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