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- Creators: Barrett, The Honors College
- Creators: Kavazanjian, Edward
- Creators: Allenby, Braden
- Creators: Cadillo – Quiroz, Hinsby
Description
Currently conventional Subtitle D landfills are the primary means of disposing of our waste in the United States. While this method of waste disposal aims at protecting the environment, it does so through the use of liners and caps that effectively freeze the breakdown of waste. Because this method can keep landfills active, and thus a potential groundwater threat for over a hundred years, I take an in depth look at the ability of bioreactor landfills to quickly stabilize waste. In the thesis I detail the current state of bioreactor landfill technologies, assessing the pros and cons of anaerobic and aerobic bioreactor technologies. Finally, with an industrial perspective, I conclude that moving on to bioreactor landfills as an alternative isn't as simple as it may first appear, and that it is a contextually specific solution that must be further refined before replacing current landfills.
ContributorsWhitten, George Avery (Author) / Kavazanjian, Edward (Thesis director) / Allenby, Braden (Committee member) / Houston, Sandra (Committee member) / Civil, Environmental and Sustainable Engineering Programs (Contributor) / Barrett, The Honors College (Contributor)
Created2013-05
Description
A collection of storyboards for a graphic novel adaptation of Edgar Allan Poe's "The Oval Portrait." These are drawn in a horror comic style and explore the gothic themes present in "The Oval Portrait" in a visual manner.
ContributorsRea, Sara Mateo (Author) / Fette, Donald (Thesis director) / Davis, Turner (Committee member) / School of Art (Contributor) / Barrett, The Honors College (Contributor)
Created2021-05
Characterization and Manipulation of Microbiomes From Arid Landfills for Improved Methane Production
Description
Environmentally harmful byproducts from solid waste’s decomposition, including methane (CH4) emissions, are managed through standardized landfill engineering and gas-capture mechanisms. Yet only a limited number of studies have analyzed the development and composition of Bacteria and Archaea involved in CH4 production from landfills. The objectives of this research were to compare microbiomes and bioactivity from CH4-producing communities in contrasting spatial areas of arid landfills and to tests a new technology to biostimulate CH4 production (methanogenesis) from solid waste under dynamic environmental conditions controlled in the laboratory. My hypothesis was that the diversity and abundance of methanogenic Archaea in municipal solid waste (MSW), or its leachate, play an important role on CH4 production partially attributed to the group’s wide hydrogen (H2) consumption capabilities. I tested this hypothesis by conducting complementary field observations and laboratory experiments. I describe niches of methanogenic Archaea in MSW leachate across defined areas within a single landfill, while demonstrating functional H2-dependent activity. To alleviate limited H2 bioavailability encountered in-situ, I present biostimulant feasibility and proof-of-concepts studies through the amendment of zero valent metals (ZVMs). My results demonstrate that older-aged MSW was minimally biostimulated for greater CH4 production relative to a control when exposed to iron (Fe0) or manganese (Mn0), due to highly discernable traits of soluble carbon, nitrogen, and unidentified fluorophores found in water extracts between young and old aged, starting MSW. Acetate and inhibitory H2 partial pressures accumulated in microcosms containing old-aged MSW. In a final experiment, repeated amendments of ZVMs to MSW in a 600 day mesocosm experiment mediated significantly higher CH4 concentrations and yields during the first of three ZVM injections. Fe0 and Mn0 experimental treatments at mesocosm-scale also highlighted accelerated development of seemingly important, but elusive Archaea including Methanobacteriaceae, a methane-producing family that is found in diverse environments. Also, prokaryotic classes including Candidatus Bathyarchaeota, an uncultured group commonly found in carbon-rich ecosystems, and Clostridia; All three taxa I identified as highly predictive in the time-dependent progression of MSW decomposition. Altogether, my experiments demonstrate the importance of H2 bioavailability on CH4 production and the consistent development of Methanobacteriaceae in productive MSW microbiomes.
ContributorsReynolds, Mark Christian (Author) / Cadillo-Quiroz, Hinsby (Thesis advisor) / Krajmalnik-Brown, Rosa (Thesis advisor) / Wang, Xuan (Committee member) / Kavazanjian, Edward (Committee member) / Arizona State University (Publisher)
Created2022
Description
Zero-Valent Metals (ZVM) are highly reactive materials and have been proved to be effective in contaminant reduction in soils and groundwater remediation. In fact, zero-Valent Iron (ZVI) has proven to be very effective in removing, particularly chlorinated organics, heavy metals, and odorous sulfides. Addition of ZVI has also been proved in enhancing the methane gas generation in anaerobic digestion of activated sludge. However, no studies have been conducted regarding the effect of ZVM stimulation to Municipal Solid Waste (MSW) degradation. Therefore, a collaborative study was developed to manipulate microbial activity in the landfill bioreactors to favor methane production by adding ZVMs. This study focuses on evaluating the effects of added ZVM on the leachate generated from replicated lab scale landfill bioreactors. The specific objective was to investigate the effects of ZVMs addition on the organic and inorganic pollutants in leachate. The hypothesis here evaluated was that adding ZVM including ZVI and Zero Valent Manganese (ZVMn) will enhance the removal rates of the organic pollutants present in the leachate, likely by a putative higher rate of microbial metabolism. Test with six (4.23 gallons) bioreactors assembled with MSW collected from the Salt River Landfill and Southwest Regional Landfill showed that under 5 grams /liter of ZVI and 0.625 grams/liter of ZVMn additions, no significant difference was observed in the pH and temperature data of the leachate generated from these reactors. The conductivity data suggested the steady rise across all reactors over the period of time. The removal efficiency of sCOD was highest (27.112 mg/lit/day) for the reactors added with ZVMn at the end of 150 days for bottom layer, however the removal rate was highest (16.955 mg/lit/day) for ZVI after the end of 150 days of the middle layer. Similar trends in the results was observed in TC analysis. HPLC study indicated the dominance of the concentration of heptanoate and isovalerate were leachate generated from the bottom layer across all reactors. Heptanoate continued to dominate in the ZVMn added leachate even after middle layer injection. IC analysis concluded the chloride was dominant in the leachate generated from all the reactors and there was a steady increase in the chloride content over the period of time. Along with chloride, fluoride, bromide, nitrate, nitrite, phosphate and sulfate were also detected in considerable concentrations. In the summary, the addition of the zero valent metals has proved to be efficient in removal of the organics present in the leachate.
ContributorsPandit, Gandhar Abhay (Author) / Cadillo – Quiroz, Hinsby (Thesis advisor) / Olson, Larry (Thesis advisor) / Boyer, Treavor (Committee member) / Arizona State University (Publisher)
Created2019
Description
"Calico" takes a look at the Japanese art form of "Manga" and what makes it stand out from similar art forms seen in the west such as comic books and graphic novels. After researching art techniques and the history leading up to modern manga practices, "Calico" summarizes it all together in the form of a manga itself. The story of "Calico" uses manga art techniques to tell the story of a young girl who finds solace in a street cat following the death of her mother.
ContributorsRamirez Cordero, Andrea (Author) / Boyce-Jacino, Katherine (Thesis director) / Deacon, Deborah (Committee member) / Barrett, The Honors College (Contributor) / School of Art (Contributor)
Created2021-12
Description
When I first began thinking about what to do my honors thesis on during junior year, I knew that I wanted to do something creative. While I had successfully written a plethora of research papers and such throughout college, I knew that, were I to try to make my thesis entirely research based, I would not be able to be passionate about it. This thesis is what is going to be left for other Barrett students, current and future, to look at. I do not want to work on something that I would not be passionate about knowing that other people would see it and maybe even look at it when trying to find inspiration for their own theses. In order to accomplish this, I knew working on a creative project as my thesis was my best option. I would be passionate about what I was working on, and it would also allow me to work on something that did not just feel like more schoolwork. In other words, I would not get as “burnt out” working on my thesis if it were something that I enjoyed working on, rather than something that felt tedious.
ContributorsPrieve, Connor Taylor (Author) / Schmidt, Peter (Thesis director) / Ison, Tara (Committee member) / Department of English (Contributor) / School of Film, Dance and Theatre (Contributor) / Barrett, The Honors College (Contributor)
Created2020-05
Description
In the event of a climate disaster, everything changes, but the places we’ve romanticized as a frontier will become new to us once again. New Sonoran is, in essence, an American story on a global problem. It draws on American pioneer/Old West/cowboy culture, the lasting effects of climate change denial, and the individualism that pervades American culture. I want to use this project to underscore the actual isolation of individualism, as well as create a new story that speaks to a problematic but evocative cultural history while accessing an uncertain future. For this project, I drew from a varied palette of media: comics, video games, and the pervasive cultural malaise that surrounds my current generation.
The work is based in anxieties, but its media influences are a strong indicator of tone and concept. At the very least, they helped me articulate why I wanted to work on a graphic novel on a post-climate change Sonoran. This desert that I’ve grown used to will change irrevocably, but it will be a new frontier to explore while the old will become a loss to mourn. This cycle of change is something I want to highlight in my work: we can worry, mourn, and fear, but there’s going to be something new.
New Sonoran is a graphic novel based upon the journey of Sage, a cartographer and anthropologist who travels the desert, annotating maps and studying a desert irrevocably affected by global climate change. As she catalogues the changes and losses in this new landscape, she learns how residents have adapted, and how people may still relate to the land.
The work is based in anxieties, but its media influences are a strong indicator of tone and concept. At the very least, they helped me articulate why I wanted to work on a graphic novel on a post-climate change Sonoran. This desert that I’ve grown used to will change irrevocably, but it will be a new frontier to explore while the old will become a loss to mourn. This cycle of change is something I want to highlight in my work: we can worry, mourn, and fear, but there’s going to be something new.
New Sonoran is a graphic novel based upon the journey of Sage, a cartographer and anthropologist who travels the desert, annotating maps and studying a desert irrevocably affected by global climate change. As she catalogues the changes and losses in this new landscape, she learns how residents have adapted, and how people may still relate to the land.
ContributorsBarbee, Amelia Bernadette (Author) / Soares, Rebecca (Thesis director) / Schmidt, Peter (Committee member) / Department of English (Contributor, Contributor) / Barrett, The Honors College (Contributor)
Created2020-05
Description
"Damietta" is a graphic novel that tells the story of my grandparents, Aziza and Mostafa, and their separate journeys from Egypt to the United States to pursue an education. Using elements of color, form, and narrative style, the graphic novel seeks to put the reader into the perspective of a young immigrant seeking a future in an entirely new land. In completing this project, I had to interview my grandparents, illustrate 51 pages on a computer, transpose interviews into a first person story, and learn how to publish a book. As a result of this process, I learned it is wise to start early, make a consistent work schedule, and make multiple rounds of revisions.
ContributorsDeadrick, Samuel W (Author) / Brown, Keith (Thesis director) / Button, Melissa (Committee member) / Mechanical and Aerospace Engineering Program (Contributor) / Barrett, The Honors College (Contributor)
Created2019-05
Description
This thesis takes the form of a nonfiction graphic novel to analyze how ideas about monsters are subverted in DreamWorks’s How to Train Your Dragon and Guillermo del Toro’s The Shape of Water, and how these subversions are queer acts. Both of these movies initially introduce the inhuman as something to fear, but later deliver messages of empathy and respect as the protagonists learn to communicate with and befriend the inhuman. Interestingly enough, these movies present contrasting opinions on whether monsters should be integrated into society or remain outcast; How to Train Your Dragon shows a society where dragons become normalized by the end and argues for the integration of monsters into society. Conversely, The Shape of Water concludes with the protagonist Elisa escaping society with the Amphibian Man, therefore arguing that the monstrous is to be kept separate from society at large. The act of personifying monsters elevates them to the same level of respect as humans. I maintain that the personification of monsters queers the definition of both person- and monsterhood by blurring the distinctions between the two. This is important because it allows humans to recognize not just the humanity of monsters, but the monstrosity in ourselves.
ContributorsPhillips, Kelsey (Author) / Van Engen, Dagmar (Thesis director) / Deacon, Deborah (Committee member) / Barrett, The Honors College (Contributor) / Dean, W.P. Carey School of Business (Contributor) / School of Art (Contributor)
Created2022-05