Index Catalog // ScholarsArchive@OSU

Evaluation of Apatite II™ for removal of copper and zinc from highway stormwater runoff : laboratory and field experiments

Creator:: Provolt, Justin J.
Abstract:: Current best management practices (BMPs) for stormwater treatment are not able to adequately remove heavy metals to levels which do not adversely affect aquatic life. Copper is commonly found in highway stormwater runoff, with the primary source being brake pad wear. Copper is of particular concern due to inhibitory effects...
Resource Type:: Masters Thesis
Full Text:: Evaluation of Apatite II™ for Removal of Copper and Zinc

The assessment of copper and zinc removal from highway stormwater runoff using Apatite II™

Creator:: Huang, Hsiao-Wen
Abstract:: Copper and zinc are heavy metals commonly present in highway stormwater runoff. Discharge of these metals to surface waters inhabited by sensitive aquatic species including threatened and endangered salmonids has necessitated the need for improved treatment techniques. Although copper is of the greater toxicological concern, zinc is often present at...
Resource Type:: Masters Thesis
Full Text:: : The Assessment of Copper and Zinc Removal from Highway Stormwater Runoff using Apatite II TM

Assessing the effectiveness and environmental impacts of using natural flocculants to manage turbidity

Creator:: Kegley, Laura J.
Abstract:: The objective of this research was to determine the feasibility of using chitosan as a natural flocculant to control turbidity during in-stream construction work. A series of field tests in Oak Creek, Corvallis, OR were conducted in order to test the effectiveness for turbidity control and the environmental impacts of...
Resource Type:: Masters Thesis
Full Text:: and Environmental Impacts of Using Natural Flocculants to Manage Turbidity Abstract Approved: Dr

Total hydrocarbon emissions from lumber dry kilns

Creator:: Lavery, Mark Robert
Resource Type:: Masters Thesis

Ecological Consequences of Marine Debris: Understanding Large-Scale Species Transport on Tsunami Debris and Research Priorities in Oregon

Creator:: Gillman, Reva A.
Abstract:: The release of marine debris into the oceans and seas is a global issue of growing concern. These materials are harmful to marine environments and can also transport non-native species to novel habitats. Non-native species floating on marine litter is one of the lesser known impacts associated with marine debris....
Resource Type:: Masters Thesis
Full Text:: . Therefore, I characterized the distributional, environmental, and life history traits of the species

The agronomic, environmental, and economic implications of the introduction of terbacil for weed control in Oregon commercial peppermint operations

Creator:: Harris, James O.
Abstract:: The use of terbacil for weed control was adapted by a high percentage of Oregon peppermint growers soon after its introduction in 1967. To help clarify some of the implications of terbacil usage, three studies were undertaken to collect information concerning (a) the movement and build-up of terbacil in various...
Resource Type:: Masters Thesis
Full Text:: The agronomic, environmental, and economic implications

Partial chemical speciation techniques for aquatic humic-metal complexes

Creator:: Chase, Duane Scott
Resource Type:: Masters Thesis
Full Text:: and Ni are complexed. Zinc is not significantly complexed at any HM concentra- tion at pH 5.9. This

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:: Runoff Redacted for privacy Abstract approved: Jam's A. Moore This paper examines the environmental

An analysis of two adjacent agricultural watersheds in west central Oregon

Creator:: Schoeneberger, Philip James
Abstract:: Two small adjacent watersheds on the west-central edge of the Willamette Valley of western Oregon were studied. Information was gathered on existing conditions to determine the suitability of the two watersheds for a paired-watershed study design. A soil survey was conducted using slightly modified soil series previously established for the...
Resource Type:: Masters Thesis
Full Text:: results of the particular study focus and the environmental conditions encoun- tered. Some designs are

An experimental investigation into the dynamic collapse phase of drilling fluid discharged into a stratified, flowing environment

Creator:: Albright, Stephen L.
Abstract:: Dumping drilling mud from offshore drilling rigs into the ocean could have a negative impact on the marine environment. Due to this possible impact, the Offshore Operators Committee (OOC) has deemed it necessary to predict the fate of drilling mud discharged into the ocean. Through the funding of OOC and...
Resource Type:: Masters Thesis
Full Text:: been conducted concerning the environmental fate and effect of drilling mud. In determining the fate

Nitrate leaching as affected by artificial drains

Creator:: Owre, Jane Cunningham
Resource Type:: Masters Thesis
Full Text:: Introduction 1 1.2 Nitrogen Transformations 2 1. 3 Nitrogen Uptake by Plants 4 1. 4 Influence of Environmental

Some biological effects of the insecticide sevin on marine bivalves

Creator:: Armstrong, David A.
Abstract:: See pdf
Resource Type:: Masters Thesis

Streamside buffer strips : survival, effectiveness, and design

Creator:: Steinblums, Ivars John
Abstract:: Stream buffer strips are an important tool for protecting the stream environment. This research documents the losses from 40 stream buffer strips, in the Western Cascades of Oregon, established 1 to 15 years before the study. Predictive equations are developed which identify the major reasons for buffer strip losses. Losses...
Resource Type:: Masters Thesis

An in silico Approach to Determine the Influence of Surface Chemical Properties on the Toxicity of Engineered Zinc Oxide Nanoparticles

Creator:: Zhou, Zitao
Abstract:: Nanotechnology products have long since made their way to markets around the world increasing the concerns about whether nanomaterials pose a risk to our environment or health. It has been suggested that engineered nanomaterial (ENM) with broad applications and rapid commercialization need better risk assessment and regulation. However, the refinement...
Resource Type:: Masters Thesis
Full Text:: surface chemical properties on the toxicity of engineered zinc oxide nanoparticles

Hydrophobicity of Cindery Typic Cryorthents

Creator:: Evans, Lynn B.
Abstract:: The hydrophobicity of soils of the Deschutes National Forest was studied. The soils are Cindery Typic Cryorthents, formed in cinders and ash from Mt. Mazama. Ponderosa pine is the dominant overstory vegetation. Of particular interest was the effect of prescribed burning on hydrophobicity. Fire has been shown to cause a...
Resource Type:: Masters Thesis
Full Text:: generally east by southeast aspect. The LaPine series (Cindery Typic Cryorthents) occupies most of Unit 40B

Nitrate and pesticide transport under pear production in clay and sandy soil

Creator:: Cao, Weidong
Abstract:: Groundwater contamination on irrigated land is of concern in this nation and around the world. In order to reduce the potential of groundwater contamination by agricultural practices such as irrigation, fertilizer and pesticide application, vadose-zone monitoring and sampling are needed. The main objective of this study was to evaluate impacts...
Resource Type:: Masters Thesis
Full Text:: transport has increased during the last few decades. Environmental and economic concerns have inspired the

Nitrate leaching and model evaluation under winter cover crops

Creator:: Minshew, Hudson F.
Resource Type:: Masters Thesis
Full Text:: Agricultural production can have significant impacts on environmental quality. Understanding the underlying

Uranium and technetium bio-immobilization in intermediate-scale permeable reactive scale barriers

Creator:: Sapp, Mandy M.
Abstract:: Groundwater at Oak Ridge National Laboratory's Field Research Center (FRC) is contaminated with U(VI) and Tc(VII), has pH values as low as 3.3, and nitrate concentrations as high as 120 mM. The objective of this research was to determine if in-situ bio-immobilization is a viable treatment alternative for this water....
Resource Type:: Masters Thesis
Full Text:: . Environmental Health Considerations 5 1 .5.Treatment of Radionuclide Contaminated Groundwater 7 1.6

Harvestable moss : communities, hosts, and accumulation

Creator:: Peck, JeriLynn E.
Abstract:: With the increased recognition of moss as a secondary forest product has come an increased concern for the ecological ramifications of moss harvest. Three issues of primary concern are (1) characterizing the epiphyte communities impacted by harvest, (2) assessing the host preferences of these epiphytes, and (3) describing the availability...
Resource Type:: Masters Thesis

Fine organic debris and dissolved oxygen in streamed gravels in the Oregon Coast Range

Creator:: Skaugset, Arne E.
Abstract:: Intragravel organic loading and intragravel dissolved oxygen were studied to determine the relationship between timber harvesting adjacent to first-, second-, and third-order streams and intragravel water quality. Twenty watersheds in the central Coast Range of western Oregon were studied of which five were undisturbed, nine were partially harvested, and six...
Resource Type:: Masters Thesis

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