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Sustainable Waste-To-Bioproducts Engineering Center Laboratory Safety Project, Claudine Mock

All Graduate Reports and Creative Projects, Fall 2023 to Present

Laboratory accidents are common in teaching and research labs; these accidents can be injurious or even fatal. The consequences of each type of laboratory accident are different based on the activities performed and the hazardous materials used in each facility. However, the most common issue related to laboratory accidents is the lack of proper safety measures (e.g., poor handling of hazardous materials, not reporting incidents immediately, etc.). This project aimed to establish and strengthen best practices and procedures to ensure laboratory safety at the Utah State University Sustainable Waste-to-Bioproducts Engineering Center. To achieve this goal, different practices and measures were …

Chemical Meadows, Nate Dorr

Theses and Dissertations

Chemical Meadows correlates water chemistry and photochemistry in New Jersey’s Meadowlands. A vast marshland transformed by industry and environmental contamination, the Meadowlands today are home to seven Superfund sites. By bathing 16mm film in contaminated waterways, sensitive photochemistry reveals hidden histories.

Material Development And Optimization Of Solid Oxide Cells For Energy Conversion And Storage, Wanhua Wang

Theses and Dissertations

There has been an increasing interest in clean and renewable energy generation for highlighted energy and environmental concerns. Solid oxide cell (SOC) has been considered as one of the most promising technologies since it can convert chemical energy to electricity in the fuel cell mode and store electricity to chemicals in the electrolysis mode. The present work is devoted to materials development in both oxygen ion conducting SOC (O-SOC) and proton conducting SOC (P-SOC). The objective of this study is to design and optimize the electrolyte and electrode materials for SOC in energy conversion and energy storage applications. One major …

The Links To Cancer: How Golf Became Dangerous And What We Can Do To Save The Game, Meredith Boos

Undergraduate Theses, Professional Papers, and Capstone Artifacts

This study is a comprehensive meta-analysis on health claims linked to exposure to golf courses, more specifically the chemicals used to maintain their appearance. It provides a brief history of the golf industry and how its growth exacerbated the environmental impact as well as an explanation of the legal landscape that will affect golf course management. Golf courses can disrupt local ecologies, contaminate ground water, rivers, lakes and streams with run-off, and be responsible for the bioaccumulation of chemicals which remain dangerous for decades. Despite the adverse effects of golf courses on the environment, there remains an opportunity to transform …

Mechanistic Understanding Of Catalytic Processes For Sustainable Chemical Transformations, Pooja J. Ayare

Theses and Dissertations

The current field of catalysis is notably advanced in terms of both conceptual and technical innovation. There is a constant need to design new catalysts and develop catalytic processes to improve the scope, efficiency, and selectivity of various chemical transformations. It is also imperative to design catalytic systems which are effective, truly-recyclable and energy efficient for a sustainable future. This can be done through comprehensive knowledge and understanding of catalyst behavior, reaction kinetics and process designing.

For most industrial processes, the preferred catalysts are heterogeneous because these solid catalysts can be easily separated from the final product. However, they often …

Design And Analysis Of A Process To Convert Methanol Into Dimethyl Ether, Elisa M. White

Honors Theses

A recent economic downturn led to the loss of a contract for a company that sells methanol. The company has two options to recover some of the profit lost from the contract termination. One option is to sell the excess methanol at the spot market price, and the second option is to implement a process to convert the excess methanol into dimethyl ether. This project investigated the implementation of a process to convert the methanol from the lost contract into dimethyl ether. The process was simulated in AVEVA Process Simulation to estimate the size of equipment needed. A toller provided …

Associations Between The Chemical Constituents Of Fine Particulate Matter And Human Health Outcomes: A Literature Review, Lenora Davis

Honors Theses

Exposure to fine particulate matter, PM_2.5, a component of air pollution, has known systemic effects on the human body. Research on the specific chemical constituents of PM_2.5 that impact human health is fairly new, however. This literature review aims to draw connections between the chemical constituents of PM_2.5 and their implications on human health. We conducted an online search for scholarly articles using a number of key-terms, and created a system to filter the search results. We focused on 69 articles pertaining to PM_2.5 and its effects on different health systems. We found positive associations …

Economic Analysis Of Lithium Recovery From Spent Lithium Ion Batteries, Makayla Hyde, Jaclyn Choate, Zoe Antonas, Abby Newberry, Madi Sherrod

Chancellor’s Honors Program Projects

No abstract provided.

Chemical Space Exploration Around Thieno[3,2-D]Pyrimidin-4(3h)-One Scaffold Led To A Novel Class Of Highly Active Clostridium Difficile Inhibitors, Xuwei Shao

Theses and Dissertations

Clostridium difficile infection (CDI) is the leading cause of healthcare-associated infection in the United States. Therefore, development of novel treatments for CDI is a high priority. Toward this goal, we began in vitro screening of a structurally diverse in-house library of 67 compounds against two pathogenic C. difficile strains (ATCC BAA 1870 and ATCC 43255), which yielded a hit compound, 2-methyl-8-nitroquinazolin-4(3H)-one (2) with moderate potency (MIC = 312/156 µM). Optimization of 2 gave lead compound 6a (2-methyl-7-nitrothieno[3,2-d]pyrimidin-4(3H)-one) with improved potency (MIC = 19/38 µM), selectivity over normal gut microflora, CC50s >606 µM against mammalian cell lines, and acceptable stability in …

Monitoring Corrosion Of A One Inch Ball Valve In A Hydraulic Loop Using Ultrasonic Technology, Osei Prempeh

Theses and Dissertations

Ball valves with carbon steel bodies that help modulate flow rates are valuable parts in the process chemical industry. While corrosion monitoring is widely studied, there is not much information available regarding corrosion monitoring of control valves, as referenced in the literature review for this dissertation. This research investigated some foundational blocks for how corrosion can be monitored for a carbon steel body ball valve using ultrasonic technology. Topics that were addressed during this research include:

Monitoring corrosion in a carbon steel 1inch ball valve in a constant flow rate environment, in the presence of sodium chloride solution, mixtures of …

Synthesis & Characterization Of Polymer-Modified Calcium Silicate Hydrate For Wellbore Applications, Jeremy J. Starr

Civil Engineering ETDs

Calcium Silicate Hydrate (C-S-H) acts as the primary binding material that is mainly responsible for the strength and durability of concrete. C-S-H constitutes approximately 67% of hydrated ordinary Portland cement by volume. C-S-H forms with a range of stoichiometric formula dependent on many factors such as CaO/SiO₂ ratio. The continued rise of hydrocarbon exploration in the United States has developed the need for improved wellbore cementing materials. Binders with good bond strength to steel and rock interfaces, low shrinkage, and high cracking strength are sought by the oil and gas industry. The incorporation polymers and nano materials has evolved …

A War Of Frustration: Saddam Hussein’S Use Of Nerve Gas On Civilians At Halabja (1988) And The American Response, Christopher Huber

Senior Honors Projects, 2010-2019

The large-scale use of chemical weapons in conflict dates to World War I, but international regulations kept its use in check until Saddam Hussein’s decision to implement it throughout the Iran-Iraq War in the 1980s. The consistent use of poison gas and repeated lack of international intervention allowed Saddam to murder thousands of Kurdish citizens in Halabja on March 16, 1988. This paper admits Saddam Hussein committed heinous acts of human rights violations and war crimes, but argues he was forced to make these horrific decisions by an unyielding adversary in the Ayatollah Khomeini, abandoned by an ineffective United Nations …

Extraction Of Thorium Dioxide And Other Ree Oxides From Monazite Ore, Bradley M. Bennett, Julia Johnson, Kelsey Hay, Chelsea Connolly-Horton

Chancellor’s Honors Program Projects

No abstract provided.

Additives Abyss, I-Tang Wu

Theses

Through the news, publications and journals about misuse of food additives in Taiwan, food additives are gradually recognized by the public. However, many people were neither aware of the additives nor able to understand the importance of nutrition usage until some negative food safety issues broke out. This has a lot to do with the lack of knowledge about additives among Taiwanese. People are seldom suspicious of the unnatural taste, even get familiar with it. Therefore, food companies replace the natural ones with food additives not only to lower costs and make food attractive, but also to fulfill customers’ need …

Impressions Of Participants In A Chemical Mass Casualty Exercise, Ethan J. Start, Joan M. Culley, Abbas Tavakoli

Senior Theses

A mass casualty exercise was performed to investigate triage and decontamination of patients exposed to an irritant gas. Nursing students participated in two groups: emergency department triage (ED) and decontamination (DECON). While participants felt overall that the experience was valuable, DECON participants had a greater interest in emergency response and were more likely to volunteer again.

Hazmat Storage Near Nyc Waterways Endangers Communities, Brett E. Dahlberg, Nicole Acevedo

Capstones

New York City has 520 miles of shoreline--that’s more than Miami and Los Angeles combined. These waterfronts are home to some of the city’s most polluted sites because major part of it is zoned for industrial use. Dozens of industrial plants in this area store toxic chemicals in flood zones: substances that are hazardous to our health, like Benzene, which is used in rocket fuel, toluene, a paint thinner, and lead a neurotoxin. In a flood, these chemicals can easily get caught up in moving waters and pollute entire neighborhoods.

That’s exactly what happened when Hurricane Sandy hit in 2012. …

On The Degradation Of Lubricating Grease, Asghar Rezasoltani

LSU Doctoral Dissertations

A comprehensive literature review on physical and chemical degradation monitoring and life estimation models for lubricating greases is presented in chapter one. Degradation mechanisms for lubricating grease are categorized and described, and an extensive survey of the available empirical and analytical grease life estimation models including degradation monitoring standards and methods are presented. In chapter two, irreversible thermodynamic theory is employed to study the mechanical degradation of lubricating grease. A correlation between the mechanical degradation and entropy generation is established and the results are verified experimentally using a rheometer, a journal bearing test rig, and a modified grease worker machine. …

The Human And Environmental Effects Of Cbrn Weapons, Brendan M. Doran

Student Theses 2015-Present

Since the first use of modern weapons of mass destruction during the First World War, the World has lived in fear of these horrifying instruments of death. Gripped by this fear, countries around the world have continued to research, develop, and test these weapons in the spirit of mutually assured destruction. Over the years, science and warfare have continually refined their methods of human extermination, bringing forth some of the most terrifyingly effective weapon systems ever devised. However, the testing and use of these weapons is often a step into the unknown. The repercussions of deploying these weapons are sometimes …

The Development Of Efficient Geminal-Based Methods For Quantum Chemical Calculations, Brett Allen Cagg

Theses and Dissertations

Incorporation of electron correlation to improve the accuracy of computations remains a driving force in quantum chemical method development. Traditionally, electron correlation effects are divided into static and dynamic correlation parts, and the inclusion of both results in methods that are impractical for large chemical systems. The goal of this doctoral research is to develop a method that efficiently accounts for both components of electron correlation in a separate but balanced manner. The approach focuses on combining a geminal method, called the antisymmetrized product of singlet-type, strongly orthogonal geminals (SSG), with dynamic correlation by either density functionals or a recently …

Physicochemical Gradients, Diffusive Flux And Biostabilization Of Oil Sands Tailings Material, Thomas Reid

Electronic Theses and Dissertations

Extraction of raw bitumen from the Athabasca Oil Sands through open-pit mining produces waste materials called tailings, which are housed in large settling basins called tailings ponds. As consolidation of fines (sands, silts and clays) occurs, biogeochemical cycling of nutrients and an overall REDOX environment establishes, as with any natural wetland or lake sediment environment. These biogeochemical processes play a role in the dynamic nature of these tailings ponds over time, and directly implicate the future fate of these ponds as they are prepared for reclamation to wetlands or End-Pit Lake environments. This thesis tracks general chemistry and physico-chemical gradients …

Chemical Processes Governing The Equilibrium Between Organic And Inorganic Carbon: Probing The Mechanisms Of Iron Catalyzed Reactive Oxygen Species Production, Joy Kelechi Ihekweazu

Theses and Dissertations

This study examines the oxidation of organic carbon that occurs concurrently with the autoxidation of Fe(II) to determine the role that geochemical constituents have on both the autoxidation of Fe(II) and subsequent ROS production. The reaction between reduced carbon and oxygen is thermodynamically favorable, but kinetically proceeds slowly. Fe(II) facilitates the equilibration of reduced carbon and oxygen. This equilibration occurs naturally in saline estuaries, where oxygen rich seawater mixes with anoxic groundwater. We characterized a saline estuary at the Baruch Institute and used those characterizations to recreate natural water conditions in the lab. Using simulated natural water we then examined …

Developing Management Recommendations For Hydrilla (Hydrilla Verticillata L.F. Royle) In The Ross Barnett Reservoir: A Community Approach, Bradley Todd Sartain

Theses and Dissertations

In order to develop recommendations for management of hydrilla at Ross Barnett Reservoir, Mississippi a number of techniques were utilized. Point intercept surveys were conducted within known hydrilla sites at Ross Barnett Reservoir, Mississippi in order to quantitatively assess chemical management for hydrilla control. Hydrilla tuber data were also collected during the winter and spring of 2012 and 2013. Tuber data were compared between the Ross Barnett Reservoir and Tennessee-Tombigbee Waterway in order to see the effects of chemical management on hydrilla tuber bank dynamics. Water exchange data were collected using Rhodamine WT dye at Ross Barnett Reservoir, Mississippi to …

Chemical Reactive Separations In Energy And Environmental Processes, Md Arif Khan

Theses

The main objective of this study was to investigate the application of chemical reactive separation (reactive separation, advanced oxidation) in bio-oil upgradation and air pollution control. Aspen simulation for reactive distillation of pyrolysis bio-oil for the reactive distillation with n-butanol is carried out using RADFRAC module and UNIQUAC property method by minimizing Gibbs free energy. The binary and ternary interaction and chemical and phase equilibrium (CPE) between the components were studied to determine the azeotropes and homogeneous region of mixture. The conversions for the esterification reactions were found to be 70-90% for various simulated bio-oils, and water was separated from …

Sustainable Production Of Biofuels And Biochemicals From Aquatic Biomass, Quazi Mahzabin Rahman

Theses

In recent years, growing attention has been devoted to the conversion of biomass into biofuels and biochemicals. Biomass has several reasons to be considered as an attractive energy source. The main reason is that energy produced from biomass can contribute to sustainable development. Aquatic biomasses-microalgae, duckweed, and cattail-are considered as promising biomass sources due to their favorable characteristics such as high growth rate and low lignin content. The objective of this study was to produce biofuel- ethanol through Simultaneous Saccharification and Fermentation (SSF) of fresh algae, duckweed and cattail biomass by E. coli and to produce acetic acid by C. …

The Use Of An Industrial By-Product As A Soil Amendment And Its Effects On Soil Physical/Chemical Characteristics And Nutrient Retention, Dawn R. Hawkins

Culminating Projects in Environmental and Technological Studies

Soil physical/chemical characteristics are important in regards to the productivity of the soil. These characteristics can determine the rate at which water drains through soil, how much water is available to plants for uptake, and the speed at which organic matter breaks down within the soil. These attributes also play an important role in cation exchange capacity, pH buffering capacity, and nutrient availability; all important factors in plant/crop growth and protecting environmental quality. The purpose of this experiment is to determine the effects of mixing an industrial by-product on soil physical/chemical characteristics and soil nutrient retention, and to determine the …

Modeling Chemical Reactions In Aqueous Solutions, Osman Uner

Graduate Theses and Dissertations

The energy barriers for SN2 ligand exchange reactions between the chloride anion and para-substituted benzyl chlorides were investigated both in water solution and in the gas phase by using quantum chemical simulations at the DFT and Hartree-Fock levels. The question addressed was the effect of the solvent (water) and of the substituent on the barrier height. The para substitutient groups included NH2, OH, OCH3, CH3, C(CH3)3, H, F, Cl, Br, I, CF3, CN, NO2, and SO3- . The calculations in aqueous solution were carried out with the recently developed Ultrafast Monte Carlo method using the TIP3P explicit water model. The …

Engineering Lipases And Solvents For Trans/-Esterification Of Used Vegetable Oils, Michael Dore Gagnon

Doctoral Dissertations

Diminishing petroleum reserves and increasing environmental awareness has led to an urgent need to develop alternative fuels, such as biodiesel. However, the conventional method to produce biodiesel uses environmentally harmful chemical catalysts. A relatively new development in the production of biodiesel is through enzymatic trans/- esterification with a lipase catalyst. Despite several advantages, there are a few technical and economical obstacles that limit this process: (1) immiscibility of the hydrophilic methanol and hydrophobic triglyceride which results in the formation of an interface leading to mass transfer resistance, (2) insufficient availability of large quantities of inexpensive lipase suitable for catalysis, and …

Production Of Bio-Jet Fuel From Microalgae, Marian Elmoraghy

Master's Theses and Capstones

The increase in petroleum-based aviation fuel consumption, the decrease in petroleum resources, the fluctuation of the crude oil price, the increase in greenhouse gas emission and the need for energy security are motivating the development of an alternate jet fuel. Bio-jet fuel has to be a drop in fuel, technically and economically feasible, environmentally friendly, greener than jet fuel, produced locally and low gallon per Btu. Bic jet fuel has been produced by blending petro-based jet fuel with microalgae biodiesel (Fatty Acid Methyl Ester, or simply FAME). Indoor microalgae growth, lipids extraction and transetrification to biodiesel are energy and fresh …

Potential Oscillation During Galvanostatic Copper Electrodeposition With A Leveler-Accelerant Additive System, Dongpin Liu

Master's Theses and Capstones

Potential oscillations during copper electrodeposition on a rotating disk electrode (RDE) in acidic-sulfate solution with leveler and an accelerant were investigated. Potential oscillations were observed in the presence of accelerant Bis-(3-sulfopropyl)-disulfide (SPS) and the levelers Enthone L76, a commercial leveler, and Janus green B. In the L76/SPS system, the period and amplitude of oscillation were affected by the concentrations of SPS and leveler, RDE rotation speed and the current density. Within a specific concentration range, higher SPS concentration enhanced the potential oscillation and higher leveler concentration weakened the potential oscillation. Potential oscillation was observed in a certain current density range …

Thermal Behavior Of Coal, Locally Sourced Biomass, And Their Blends Via Pyrolysis And Oxidation, Ana Maria Celaya

Master's Theses and Capstones

Co-combustion of biomass in existing coal-fired power plants may increase the use of renewable fuels. Designing equipment for these blends requires knowledge of pyrolysis and oxidation characteristics to optimize fuel ratios. Thermogravimetric analysis for pyrolysis and oxidation of three coals (Illinois No. 6, Pennsylvania, and Venezuela), three biomasses (brewer's spent grain, cocoa bean shells, corn stover), and their blends indicated there to be minimal effect of particle size and high dependency on rate of heat transfer for thermal decomposition of the fuels. Apparent activation energy of devolatilization of components and corresponding temperature ranges indicated non-synergistic, additive nature of the blends. …