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Articles 1 - 6 of 6
Full-Text Articles in Engineering
The Effect Of Manure Application Method On Nutrient And Microbial Runoff Transport And Soil Biological Health Indicators, Nicole R. Schuster
The Effect Of Manure Application Method On Nutrient And Microbial Runoff Transport And Soil Biological Health Indicators, Nicole R. Schuster
Department of Agricultural and Biological Systems Engineering: Dissertations, Theses, and Student Research
Two projects were completed to provide significant new information to the agricultural industry regarding the environmental implications and soil health impacts related to land application of swine manure. The first study reports on the runoff transport of nutrients and microbials as affected by manure application method and time following application. The second study provides information about the effect of application method and time following application on soil health indicators using arthropod abundance and diversity as a biological indicator. The information gained through these studies will provide beneficial information to the pork industry on the impact of manure application method and …
Assessing The Water Quality Benefits Of Green Infrastructure Stormwater Control Measures., Sam Abdollahian
Assessing The Water Quality Benefits Of Green Infrastructure Stormwater Control Measures., Sam Abdollahian
Electronic Theses and Dissertations
Permeable pavements systems and tree boxes are a common type of Green Infrastructure (GI) Stormwater Control Measures (SCMs) that are often used for mitigating the stormwater runoff. In this study two permeable pavement systems and a tree box installed along parking lanes of an urban street in Louisville, KY, were investigated to evaluate their performance on improving stormwater runoff quality. The water quality monitoring was accomplished by analysis of samples collected from stormwater runoff and the captured stormwater volume at the bottom of the permeable pavements’ sub-base reservoir and by a drain gauge (lysimeter) installed in the tree box. Pollutants …
The Development Of A Fluorescence-Based Reverse Flow Injection Analysis (Rfia) Method For Quantifying Ammonium At Nanomolar Concentrations In Oligotrophic Seawater, William Abbott
USF Tampa Graduate Theses and Dissertations
The goal of this thesis was to adopt a reverse flow injection analysis (rFIA) technique to the fluorometric analysis of the reaction o-phthaldialdehyde (OPA) with ammonium, allowing accurate measurements of ammonium concentrations lower than the detection limit of the widely used indophenol blue (IPB) colorimetric method while accounting for the background fluorescence of seawater. Ammonium is considered an essential nutrient for primary productivity, especially in the nutrient depleted surface ocean where as the most reduced form of dissolved inorganic nitrogen, it is readily assimilated via metabolic pathways. Challenges in the quantification of ammonium require more sensitive analytical techniques for …
Sedimentandnutrient Fluxes In The River Bandon & Owenabue Catchments, Ireland, Joseph R. Harrington, John Gamble, S. Harrington
Sedimentandnutrient Fluxes In The River Bandon & Owenabue Catchments, Ireland, Joseph R. Harrington, John Gamble, S. Harrington
Conference Papers
No abstract provided.
Identification Of Non-Point Sources Of Nutrient Loading And Proposed Best Management Practices For Browns Gulch, Silver Bow County, Mt, Sarah Hamblock
Identification Of Non-Point Sources Of Nutrient Loading And Proposed Best Management Practices For Browns Gulch, Silver Bow County, Mt, Sarah Hamblock
Graduate Theses & Non-Theses
Nutrients are essential to support stream ecosystems, however, if present in excess may lead to growth of algal blooms, excessive aquatic weeds, and alteration of natural aquatic ecosystems. Silver Bow Creek (SBC), the headwater stream of the Clark Fork River, is listed as impaired for nutrients (total nitrogen (TN) and total phosphorus (TP)), by the Montana Department of Environmental Quality. Browns Gulch is a major tributary to SBC, and drains agricultural and forested lands. To meet target nutrient TMDL concentrations in SBC, the tributary load inputs of TN and TP must be reduced by 93% in Browns Gulch. To identify …
Evaluation Of A Modified Monod Model For Predicting Algal Dynamics In Lake Tai, Jian Huang, Qiujin Xu, Xixi Wang, Beidou Xi, Keli Jia, Shouliang Huo, Hongliang Liu, Changyou Li, Bingbing Xu
Evaluation Of A Modified Monod Model For Predicting Algal Dynamics In Lake Tai, Jian Huang, Qiujin Xu, Xixi Wang, Beidou Xi, Keli Jia, Shouliang Huo, Hongliang Liu, Changyou Li, Bingbing Xu
Civil & Environmental Engineering Faculty Publications
Several modified versions of the Monod model have been proposed to simulate algal dynamics in lakes by keeping the parent model's advantages of simplicity and low data requirement. This study evaluated the performance of a widely-used modified Monod model in predicting algal dynamics at various time scales in Lake Tai, a typical shallow lake in east China, using multiple time series. Chlorophyll-a (Chl-a) concentration was used as a surrogate for algal (CyanoHABs: cyanobacterial harmful algal blooms) growth and the independent variables were total nitrogen (TN), total phosphorus (TP), and either water temperature or air temperature. The evaluation indicated that the …