Browsing Auburn Theses and Dissertations by Department "Biosystems Engineering"
Now showing items 41-60 of 123
Effectiveness of selected erosion control covers during vegetation establishment under simulated rainfall
(2015-01-07)
Soil erosion on unprotected roadside slopes generates significant soil loss during storm events. Proper surface protection to reduce erosion is promoted by water protection agencies including the United States Environmental ...
Effects of growth-promoting bacteria in suspended green algae cultures for bioenergy and bioproduct development
(2020-07-14)
With the exhaustion of fossil-based fuels, microalgae have attracted great interest as a renewable energy feedstock. Microalgae are photosynthetic microorganisms with rapid growth and the potential for production of lipids, ...
Effects of tillage practices and cover crops on X-ray computed tomography derived soil pore characteristics
(2023-08-02)
Soil management practices such as conservation tillage and cover crops improve soil health and crop yield. However, these practices may create connected soil pore networks that can cause preferential transport of contaminants ...
Engineering Clostridium saccharoperbutylacetonicum for Enhanced Isopropanol-Butanolethanol (IBE) Production from Lignocellulosic Biomass through Acetic Acid Pretreatment
(2018-07-25)
The objective of this study was to achieve efficient biofuel production from lignocellulosic biomass through the development of a novel biomass pretreatment method in combination with the metabolic engineering of microbial ...
Engineering Comfort for Micro-resolution Mosquito Bite Blocking Textiles
(2023-04-24)
Over a million people die yearly from diseases spread by biting insects, especially mosquitos. Pesticides are currently used to control harmful insect populations although there are often negative side effects from pesticides. ...
Enhancement of Nutrient and Organic Removal from Poultry Litter Using Anaerobic Digestion and Subsequent Algal Growth
(2019-07-12)
Research has indicated anaerobically digesting poultry litter can recover energy and reduce pathogen concentrations, which can be used as a nutrient rich media to support algal growth and simultaneously further treat the ...
Enhancing Microalgal Biomass Growth and Nutrient Removal in Anaerobic Digestate
(2024-12-04)
Microalgal treatment of anaerobic digestate has attracted research attention due to algae’s capability for nutrient removal and recovery. However, microalgae rarely tolerate full-strength anaerobic digestate, and this ...
Enhancing the robustness of Clostridium saccharoperbutylacetonicum N1-4 for butanol production through metabolic engineering and cell immobilization strategies
(2019-12-06)
n-Butanol (butanol hereafter) has many advantages over ethanol to be used as a biofuel. However, one of the significant drawbacks in bacterial production of butanol is the low productivity and titer due to the low butanol ...
Evaluation of 3D-printed Black Globe Thermometers for Thermal Comfort Assessment in Commercial Livestock and Poultry Operations
(2026-07-29)
Black globe thermometers (BGTs) are commonly used to assess animal thermal comfort by combining the effects of air temperature, radiation, and air speed. However, many commercially available BGTs are expensive, which limits ...
Evaluation of biochar and polylactic acid composites for sustainable plant containers
(2026-07-27)
With the rise in concerns regarding plastic pollution and lack of efficient recycling strategies, research has begun to explore new sustainability routes for materials. Biodegradable polymers present an alternative strategy ...
Evaluation of Biochar-Entrained Porous Concrete for Heavy Metal Removal from a Synthetic Stormwater
(2026-04-27)
This study evaluated the potential of biochar-entrained porous concrete (BEPC) to remove selected heavy metals from a synthetic stormwater. The primary objective of the study was to determine if replacement of cement with ...
Evaluation of water needs for modern commercial broiler farms and model development to estimate on-farm water needs
(2022-05-02)
With global populations expected to rise, appropriation of clean water supplies for human consumption pose capacity challenges for agricultural sectors. Broiler (meat-type) chicken production consumes large amounts of water ...
Examining the effect of salinity on dolphin mortality using Lagrangian particle tracking in a hydrodynamic model
(2023-12-06)
Every year, many dolphins are found dead on the beaches and waterways of the Gulf of Mexico and Mississippi Sound. In 2019, an unusual mortality event (UME) happened, where 337 bottlenose dolphins were stranded between ...
Experimental Analysis and Modeling of Biomass Gasification using a Downdraft Gasifier
(2014-08-19)
The call for the use of renewable energy is an urgent one, for not the future but the present. Concerns over depletion of fossil fuels and their negative impact on the global climate have led to much research in this sector. ...
Experimental Study of Biomass Pyrolysis in a Fluidized Bed Reactor: Effect of Biomass Blending and In-situ Catalysis
(2015-05-07)
Lignocellulosic biomass has been recognized worldwide as a renewable resource of energy for the production of liquid biofuels due to its low cost and abundance. Several routes to convert biomass to biofuels have been studied ...
Fate and Remediation of Biomass Gasification Gas Contaminants
(2014-07-29)
The development of alternative and renewable energy and fuels is at the forefront of research because of the forecasted depletion of crude oil reserves and the growing concern of irreversible environmental damage caused ...
Formation and Cleaning of Mineral Scale on Evaporative Cooling Pads Using a Farm Well-Water Source
(2024-04-12)
Well water is used as a primary supply for the evaporative cooling system on many poultry farms. The water quality from wells varies widely. Many producers have issues with the water being over-saturated with minerals that ...
Fundamental studies of biomass fluidization
(2015-08-19)
The world is presently at a point of making important decisions regarding how to minimize disasters such as super storm, super earthquakes, and landslides that are caused by global warming due to fossil fuel exploration ...
Gasification and Pyrolysis of Eucalyptus, Prickly Pear, Gumweed, and lignin for Biofuel and Chemical Intermediates
(2018-07-24)
This focus of this dissertation is to advance our understanding of how the chemical makeup of feedstocks alters the performance of thermochemical conversion and alters the production of biofuel and chemical intermediates. ...
High-throughput phenotyping applications in control and outdoor environments for stress tolerance analysis of kale and blueberries production
(2024-11-18)
Abiotic stressors such as drought and salinity significantly impact plant growth, development, and productivity. Traditional phenotyping methods for assessing plant responses to these stressors are labor-intensive, ...