Browsing by Author "Higgins, Brendan"

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Algal biomass production and nutrient removal from high strength anaerobic digestate

Wang, Qichen (2022-04-29)

The integration of microalgal biomass production with nutrient removal from the liquid portion of anaerobic digestate holds the potential to close the loop on waste. However, algal growth inhibition in anaerobic digestate ...

Biocrude production from biomass and mixed plastics via hydrothermal liquefaction for fuel and chemicals

Rahman, Tawsif (2022-12-05) ETD File Embargoed

Hydrothermal liquefaction (HTL) is a promising technology to convert organic feedstocks into value-added fuel precursors known as biocrude, solids (hydrochar), and gaseous byproducts. The HTL process can efficiently break ...

Characterization of Biofuels Produced from Hydrothermal Liquefaction of Algae, Its Subsequent Upgrading and Fractional Distillation

Jain, Nikhil (2018-11-16)

Crude petroleum is the major source of transportation fuels in the world whose reserves are declining day by day. It has become imperative to look for an alternative that can either replace or substitute the current energy ...

Characterization of Phosphorus in Poultry Litter and Determination of Phosphorus Extraction Efficacy of Extractants

Dey, Poulomi (2020-12-10)

Poultry litter (PL) is used as a nutrient source for row crops, horticultural crops, and pasture production. Typically, PL is a mixture of poultry feces, bedding materials, spilled grain and feather than can potentially ...

DEVELOPMENT OF A PREDICTIVE MODEL FOR TASTE AND ODOR EPISODES IN REGIONAL DRINKING WATER RESERVOIRS

Goodling, Peyton (2021-07-12)

Taste-and-odor episodes affect water quality in reservoirs throughout the world, and utilities including the City of Auburn Water Resources Department, Opelika Utilities, and Columbus Water Works have each identified having ...

Effect of Hydroponic System Type on Growth and Nutrient Uptake of Lettuce (Lactuca sativa ‘Rex’) Irrigated with Aquaculture Effluent

Hensarling, Kyle (2021-11-22)

Aquaponics (AP) combines the use of traditional hydroponic (HP) practices with aquaculture effluent which is used to irrigate and provide necessary nutrients to the plants. Current methods of HP production include Nutrient ...

Effects of growth-promoting bacteria in suspended green algae cultures for bioenergy and bioproduct development

Peng, Haixin (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, ...

Enhancement of Nutrient and Organic Removal from Poultry Litter Using Anaerobic Digestion and Subsequent Algal Growth

Bankston, Elizabeth (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 ...

Feeding ecology and lethal thermal tolerances among selected North American freshwater mussels (Order: Unionida)

Fogelman, Kaelyn (2022-05-04)

Sixty-five percent of North American unionid mussel species are considered imperiled. Knowledge gaps persist in unionid feeding ecology and lethal thermal tolerance limits which could aid in the conservation and management ...

Hydrothermal Liquefaction of Municipal Sludge and Biocrude Upgrading Using Carinata Oil

Soneye, Temitope Damilotun (2020-07-17)

Crude oil is a finite resource. Due to an advancement in technology, it is now possible to produce petroleum from very tight and hard reservoir formations. However, the global outcry towards the adoption of sustainable and ...

Lactic Acid Production from Filamentous Algae grown using Aquaponics Wastewater

Burgess, Nicholas (2021-01-07)

Algal Turf Scrubber (ATS) systems are a known method of treating nitrogen and phosphorous rich wastewater by cultivating green filamentous algae biomass. One novel source of this wastewater is from an aquaponics system, ...

Life Cycle Assessment of a Bacterial-Algal-Zooplankton System for Conversion of Anerobic Digestate into Fishmeal

Childree, Elizabeth (2023-07-31) ETD File Embargoed

A bacterial-algae-zooplankton system was proposed to cultivate zooplankton on digestate-grown algae as a fishmeal replacement for aquaculture. The proposed system was designed for the purpose of creating a more sustainable ...

Making wasteful, tasteful: Increasing circularity in agriculture by reclaiming post-processing poultry wastewater to produce hydroponic greens.

Morgan, Zach (2023-07-25) ETD File Embargoed

To mitigate regional environmental pressures exerted on the Southeast by the increasing global demand for poultry products, post-processing poultry wastewater has been reclaimed for the cultivation of hydroponic greens. ...

Process Modeling and Life Cycle Assessment of a Large Pilot-Scale Aquaponics Facility at Auburn University

Kalvakaalva, Rohit (2020-11-13)

Aquaponics has often been hailed as a more sustainable approach to fish and crop production when compared to traditional aquaculture and hydroponics. However, there have been insufficient data to support claim in addition ...

Promoting Nitrification in Poultry Processing Wastewater Treatment Using Microalgae and Biochar

Cherones, Jessa (2022-08-03)

The exponential growth of the global population poses a need for more sustainable food production and waste remediation tactics. Waste-to-resource food production systems such as aquaponics and “poultry-ponics” may be the ...

Sequestration of Cadmium Using Stabilized Iron-based Nanoparticles and Removal of Per- and Polyfluoroalkyl Substances Using Ion Exchange Resins and Photo-regenerable Adsorbent

Tian, Shuting (2021-11-29) ETD File Embargoed

Over years, I have been involved in several research projects that are highly cross-disciplinary. As such, the dissertation encompasses sequestration of cadmium (Cd) in contaminated water and soil using novel stabilized ...

Solids Retention Governs Nitrification of Poultry Processing Wastewater using an Algal-bacterial Consortium

Sprague, DIllon (2021-12-06)

As water demand increases worldwide, the utilization of alternative water sources, such as wastewater, is becoming necessary. The poultry processing industry generates nutrient-rich wastewater that could be treated and ...

Spatial and temporal investigation of taste and odor-producing microorganisms in Lake Saugahatchee

Thomas, Morgan (2021-07-20)

Geosmin is one of the most prevalent taste and odor compounds found in drinking water and is produced by a variety of algae. Quantitative PCR (qPCR) can be used to identify and monitor the growth of geosmin producers by ...

Transformation of Polyfluoroalkyl Substances in Aqueous Film-Forming Foam-Impacted Soils and In-situ Remediation of Mixed Perfluorinated Chemicals and Chlorinated Ethenes-Impacted Groundwater

Dong, Sheng (2023-04-24) ETD File Embargoed

Aqueous film-forming foams (AFFFs), which contain various classes of per- and polyfluoroalkyl substances (PFAS), have been widely used to extinguish hydrocarbon-fuel fires. Repeated use of AFFFs has led to widespread PFAS ...

Utilizing Aquaculture Effluent Efficiently in Cucumber Production through Substrate Choice and Fertigation Management

Ayipio, Emmanuel (2021-07-22)

De-coupled aquaponics offers several benefits over coupled aquaponics due to ability to manipulate each sub-unit independently. Fine-tuning plant production practices to make the best of the low-nutrient laden aquaculture ...