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Description
Through Zero Waste at ASU, the Villas & Vista del Sol Community Compost Program (VVDS CCP) has been in operation for three years. Programs such as this one have been identified as a priority by the university due to the significance of food waste in the waste stream ASU produces and the opportunity to reduce climate impact by diverting this waste from landfill. However, the CCP has struggled to reach its participation targets throughout its time in operation and therefore ASU requires better understanding of marketing strategies that will lead to program success before investing in additional residential compost programs. This thesis addresses the fundamental question: What marketing and operational strategies are most effective within a residential composting program at Arizona State University? Using a combination of literature review, qualitative primary research, and experimentation, this thesis provides an explanation of how the university can effectively implement and grow residential composting programs.
ContributorsMiserlian, Rachel (Author) / Dooley, Kevin (Thesis director) / Jung, Kendon (Committee member) / Barrett, The Honors College (Contributor) / Walter Cronkite School of Journalism and Mass Comm (Contributor) / Department of Marketing (Contributor) / Department of Supply Chain Management (Contributor)
Created2022-05
Description
The once thriving American textile industry has been offshored almost entirely. The few domestic mills that remain tend to be specialized; there is no dominant player. As the global environment becomes increasingly unpredictable, the benefits of offshoring are lessening. Raising concerns over sustainability, employee welfare and intellectual property have the potential to shift the current pattern of offshoring. Impulsive tariffs and rising international wages add to the uncertainty. To eliminate many of these concerns, new textile mills should be developed in the United States. Many businesses have expressed desire and need for a new American mill to help them meet their goals. Due to strict regulations, domestic production is inherently more environmentally and socially proactive. In order for this mill to succeed, it must be based on automation and sustainable practices.
ContributorsTalley, Journie Renee (Author) / Dooley, Kevin (Thesis director) / Vitikas, Stanley (Committee member) / School of Sustainability (Contributor) / Department of Supply Chain Management (Contributor) / Barrett, The Honors College (Contributor)
Created2021-05
Description
This thesis conducts research into the emissions from ocean going vessels and the ports that they dock at and current methods that are being pursued to help reduce the environmental impact of the ocean shipping industry. The main emissions from the industry analyzed are particulate matter, oxides of nitrogen, oxides of sulfur and greenhouse gases. One method of reducing the environmental impact of the industry is through the improvement of the vessels. The vessels are currently being improved through the exploration of using liquefied natural gas (LNG) instead of bunker fuel. It has been found that LNG takes up less space, costs less, and has fewer emissions compared to bunker fuel, making it an ideal replacement as a fuel source. In addition to changing fuel sources, the International Maritime Organization (IMO) has created emission control areas around the United States and its territories mandating the use of ultra-low sulfur diesel within a certain range of land. There are two emission control areas with one being for the United States, Canada, and the French Territories of North America and the other for Puerto Rico and the U.S. Virgin Islands. For the North American nations it is 200 nautical miles, while for Puerto Rico and the U.S. Virgin Islands it is 50 nautical miles. This is an external pressure encouraging current shipping companies to switch to LNG as a fuel source. A second method of reducing the environmental impact of the ocean shipping industry is to improve the ports. The ports are being improved by utilizing alternative maritime power, reducing the emissions of vehicles at the ports, and engaging all of the stakeholders of a port. Alternative maritime power (AMP) is the use of shore-side power sources to power the auxiliary engines of vessels while they are hotelling, at dock. AMP is also referred to as cold-ironing and is effective in reducing emissions from vessels because the auxiliary engines are powered by electricity as opposed to fuel. This is an expensive option to pursue because of the high investment costs, but the Carl Moyer Program provides analysis for the cost-effectiveness of projects to justify the high costs. The second facet of port improvements is decreasing the emissions from all vehicles at the ports. The Port of Los Angeles has gradually been phasing out trucks with old engines and even banning them from entering the port. Cargo handling equipment has seen similar restrictions to reduce emissions. Finally locomotives have seen requirements implemented causing them to improve their engines while implementing idling restriction technologies as well. These improvements have yielded tangible and effective results for the Port of Los Angeles. These initiatives have resulted in a decrease in emissions from the port since their inception in 2005 to 2011 (2011 being the last year that data is available). In that time frame diesel particulate matter has been reduced by 71% at 634 tons, NOx has been reduced by 51% at 8,392 tons and SOx has been reduced by 76% at a total of 4,038 tons. The final part of port improvements this paper looks into is the integration and engagement of all stakeholders. The Port of Los Angeles has all but approved the Southern California International Gateway Project (SCIG) by Burlington Northern Santa Fe (BNSF) Railway. This project included the cooperation of BNSF, local unions, and local politicians to create a new rail yard that contains the highest sustainability standards for any rail yard. SCIG will employ numerous local people, require trucks to take alternative routes, reduce the amount of trucks on the highway, and help get products to consumers more competitively and efficiently. This will result in reduced emissions, decreased noise pollution, and less traffic congestion on Los Angeles highways. In conclusion it was found that real, effective, and cost-effective projects are being undertaken to improve the environmental impacts of the ocean shipping industry.
ContributorsAlbright, Joe Todd (Author) / Maltz, Arnold (Thesis director) / Dooley, Kevin (Committee member) / Brown, Steven (Committee member) / Barrett, The Honors College (Contributor) / Department of Supply Chain Management (Contributor) / W. P. Carey School of Business (Contributor)
Created2013-05
Description
ABSTRACT American households are throwing out billions of dollars of valuable food every year, which in turn ends up in landfills, harms the environment, and consumes precious tax dollars. The nation must reduce the waste that is causing a drain on resources. Furthermore, rather than turn excess food to waste, people can redistribute food to feed the millions of food insecure households nationwide. To address this issue, this paper utilizes a supply chain approach to research central links in the food chain and identify the causes for waste at each process. Additionally, an investigation of barriers to change is conducted, explaining the struggles stakeholders face in the food challenge. Taking these barriers into consideration, various solutions are recommended that can help alleviate the food challenge. Waste reduction is possible through proper management of the six supply chain drivers: information, inventory, sourcing, transportation, pricing, and facilities. Through better information sharing, more accurate forecasts can be produced, reducing the bullwhip effect thus minimizing waste. Sourcing, transportation, and pricing can help create secondary food markets. These local, online, or discount venues put imperfect and short shelf life foods back on shelves instead of landfills. Small improvements in facilities such as reengineering display units can reduce the chances of damaged produce as well. To a humanitarian end, gleaning efforts bring nutritious, unharvested crops from farms to food pantries. Centralized donation networks better educate businesses and allocate resources to those in need. Moreover, consumer-driven initiatives at a store or web-based level can move food surpluses to food insecure homes. Combined, these methods will provide a triple bottom line benefit to profits, people, and the planet.
ContributorsChen, Jennifer (Author) / Dooley, Kevin (Thesis director) / Rabinovich, Elliot (Committee member) / Barrett, The Honors College (Contributor)
Created2013-12
DescriptionAn examination of ways the pet retail industry can integrate sustainability into their internal operations by pursuing initiatives surrounding associate engagement, logistics/transportation, packaging/certifications, and water and energy conservation.
ContributorsSuch, Emily Marie (Author) / Dooley, Kevin (Thesis director) / Byers, Reynold (Committee member) / Mars, Carole (Committee member) / Barrett, The Honors College (Contributor) / W. P. Carey School of Business (Contributor) / Department of Supply Chain Management (Contributor)
Created2013-05
Description
Despite significant growth in research about supply chain integration, many questions remain unanswered regarding the path to integration and the benefits that can be accrued. This dissertation examines three aspects of supply chain integration in the health sector, leveraging the healthcare context to extend the theoretical boundaries, as well as applying supply chain knowledge to an industry known to be immature in terms of its supply chain practices.
In the first chapter, a supply chain operating model that breaks away from the traditional healthcare supply chain structures is examined. Consolidated Service Centers (CSCs) embody a shared services strategy, consolidating supply chain functions across multiple hospitals (i.e. horizontal integration) and disintermediating several key roles in healthcare supply chains such as the group purchasing organizations and national distributors. Through case studies, key characteristics of CSCs that enable them to reduce the level of supply chain complexity are examined.
The second chapter investigates buyer-supplier relationships in healthcare (i.e. supplier integration), where a high level of distrust exists between hospitals and their suppliers. This context is leveraged to study both enablers and barriers to buyer-supplier trust. The results suggest that contracting counteracts the negative effects of dependence on trust. Furthermore, the study reveals that hospital buyers may, in some situations, perceive dedicated resource investments made by suppliers as trust barriers, associating such investments with supplier upselling and entrenchment tactics. This runs contrary to how dedicated investments are perceived in most other industries.
In the third chapter, the triadic relationship between the hospital, supplier, and physician is taken into consideration. Given their professional autonomy and power, physicians commonly undermine hospital efforts in supply base rationalization and standardization. This study examines whether physician-hospital integration (i.e. customer integration) can drive physicians towards supply selection practices that align with the hospital’s sourcing strategies and ultimately result in better supply chain performance. This study utilizes theory on agency triads and professionalism and tests hypotheses through a random effects regression model applied to data about hospital financial performance and physician-hospital arrangements.
In the first chapter, a supply chain operating model that breaks away from the traditional healthcare supply chain structures is examined. Consolidated Service Centers (CSCs) embody a shared services strategy, consolidating supply chain functions across multiple hospitals (i.e. horizontal integration) and disintermediating several key roles in healthcare supply chains such as the group purchasing organizations and national distributors. Through case studies, key characteristics of CSCs that enable them to reduce the level of supply chain complexity are examined.
The second chapter investigates buyer-supplier relationships in healthcare (i.e. supplier integration), where a high level of distrust exists between hospitals and their suppliers. This context is leveraged to study both enablers and barriers to buyer-supplier trust. The results suggest that contracting counteracts the negative effects of dependence on trust. Furthermore, the study reveals that hospital buyers may, in some situations, perceive dedicated resource investments made by suppliers as trust barriers, associating such investments with supplier upselling and entrenchment tactics. This runs contrary to how dedicated investments are perceived in most other industries.
In the third chapter, the triadic relationship between the hospital, supplier, and physician is taken into consideration. Given their professional autonomy and power, physicians commonly undermine hospital efforts in supply base rationalization and standardization. This study examines whether physician-hospital integration (i.e. customer integration) can drive physicians towards supply selection practices that align with the hospital’s sourcing strategies and ultimately result in better supply chain performance. This study utilizes theory on agency triads and professionalism and tests hypotheses through a random effects regression model applied to data about hospital financial performance and physician-hospital arrangements.
ContributorsAbdulsalam, Yousef J (Author) / Schneller, Eugene S (Thesis advisor) / Gopalakrishnan, Mohan (Committee member) / Maltz, Arnold (Committee member) / Dooley, Kevin (Committee member) / Arizona State University (Publisher)
Created2016
Description
Cavitation erosion is a significant cause of wear in marine components, such as impellers, propellers or rudders. While the erosion process has been widely studied on metals, the effect of cavitation on polymers is not well-understood. The stress response in metals differs greatly from that of polymers, e.g. rate and temperature effects are far more important, thus damage and wear mechanisms of polymers under cavitating flows are significantly different. In this work, heat-driven failure caused by viscous dissipation and void nucleation resulting from tensile stresses arising from stress wave reflections are investigated as two possible material failure mechanisms.
As a first step in developing a fundamental understanding of the cavitation erosion process on polymer surfaces, simulations are performed of the collapse of individual bubbles against a compliant surface e.g. metallic substrates with polyurea coatings. The surface response of collapse-driven impact loads is represented by a idealized, time-dependent, Gaussian pressure distribution on the surface. A two-dimensional distribution of load radii and durations is considered corresponding to characteristic of cavitating flows accelerated erosion experiments. Finite element simulations are performed to fit a response curve that relates the loading parameters to the energy dissipated in the coating and integrated with collapse statistics to generate an expected heat input into the coating.
The impulsive pressure, which is generated due to bubble collapse, impacts the material and generates intense shock waves. The stress waves within the material reflects by interaction with the substrate. A transient region of high tensile stress is produced by the interaction of these waves. Simulations suggests that maximum hydrostatic tension which cause failure of polyurea layer is observed in thick coating. Also, the dissipated viscous energy and corresponding temperature rise in a polyurea is calculated, and it is concluded that temperature has influence on deformation.
As a first step in developing a fundamental understanding of the cavitation erosion process on polymer surfaces, simulations are performed of the collapse of individual bubbles against a compliant surface e.g. metallic substrates with polyurea coatings. The surface response of collapse-driven impact loads is represented by a idealized, time-dependent, Gaussian pressure distribution on the surface. A two-dimensional distribution of load radii and durations is considered corresponding to characteristic of cavitating flows accelerated erosion experiments. Finite element simulations are performed to fit a response curve that relates the loading parameters to the energy dissipated in the coating and integrated with collapse statistics to generate an expected heat input into the coating.
The impulsive pressure, which is generated due to bubble collapse, impacts the material and generates intense shock waves. The stress waves within the material reflects by interaction with the substrate. A transient region of high tensile stress is produced by the interaction of these waves. Simulations suggests that maximum hydrostatic tension which cause failure of polyurea layer is observed in thick coating. Also, the dissipated viscous energy and corresponding temperature rise in a polyurea is calculated, and it is concluded that temperature has influence on deformation.
ContributorsPanwar, Ajay (Author) / Oswald, Jay (Thesis advisor) / Dooley, Kevin (Committee member) / Chen, Kangping (Committee member) / Arizona State University (Publisher)
Created2015
Description
The production of nanomaterials has been increasing and so are their applications in various products, while the environmental impacts and human impacts of these nanomaterials are still in the process of being explored. In this thesis, a process for
producing nano-titanium dioxide (nano-TiO2) is studied and a case-study has been conducted on comparative Life Cycle Assessment (LCA) of the application of these nano-TiO2 particles in the sunscreen lotion as a UV-blocker with the conventional organic chemical sunscreen lotion using GaBi software. Nano-TiO2 particles were identified in the sunscreen lotion using Transmission Electron Microscope suggesting the use of these particles in the lotion.
The LCA modeling includes the comparison of the environmental impacts of producing nano-TiO2 particles with that of conventional organic chemical UV-blockers (octocrylene and avobenzone). It also compares the environmental life cycle impacts of the two sunscreen lotions studied. TRACI 2.1 was used for the assessment of the impacts which were then normalized and weighted for the ranking of the impact categories.
Results indicate that nano-TiO2 had higher impacts on the environment than the conventional organic chemical UV-blockers (octocrylene and avobenzone). For the two sunscreen lotions studied, nano-TiO2 sunscreen variant had lower environmental life cycle impacts than its counterpart because of the other chemicals used in the formulation. In the organic chemical sunscreen variant the major impacts came from production of glycerine, ethanol, and avobenzone but in the nano-TiO2 sunscreen variant the major impacts came from the production of nano-TiO2 particles.
Analysis further signifies the trade-offs between few environmental impact categories, for example, the human toxicity impacts were more in the nano-TiO2 sunscreen variant, but the other environmental impact categories viz. fossil fuel depletion, global warming potential, eutrophication were less compared to the organic chemical sunscreen variant.
producing nano-titanium dioxide (nano-TiO2) is studied and a case-study has been conducted on comparative Life Cycle Assessment (LCA) of the application of these nano-TiO2 particles in the sunscreen lotion as a UV-blocker with the conventional organic chemical sunscreen lotion using GaBi software. Nano-TiO2 particles were identified in the sunscreen lotion using Transmission Electron Microscope suggesting the use of these particles in the lotion.
The LCA modeling includes the comparison of the environmental impacts of producing nano-TiO2 particles with that of conventional organic chemical UV-blockers (octocrylene and avobenzone). It also compares the environmental life cycle impacts of the two sunscreen lotions studied. TRACI 2.1 was used for the assessment of the impacts which were then normalized and weighted for the ranking of the impact categories.
Results indicate that nano-TiO2 had higher impacts on the environment than the conventional organic chemical UV-blockers (octocrylene and avobenzone). For the two sunscreen lotions studied, nano-TiO2 sunscreen variant had lower environmental life cycle impacts than its counterpart because of the other chemicals used in the formulation. In the organic chemical sunscreen variant the major impacts came from production of glycerine, ethanol, and avobenzone but in the nano-TiO2 sunscreen variant the major impacts came from the production of nano-TiO2 particles.
Analysis further signifies the trade-offs between few environmental impact categories, for example, the human toxicity impacts were more in the nano-TiO2 sunscreen variant, but the other environmental impact categories viz. fossil fuel depletion, global warming potential, eutrophication were less compared to the organic chemical sunscreen variant.
ContributorsThakur, Ankita (Author) / Dooley, Kevin (Thesis advisor) / Dai, Lenore (Committee member) / Lind, Mary Laura (Committee member) / Arizona State University (Publisher)
Created2014
Description
An eco-industrial park (EIP) is an industrial ecosystem in which a group of co-located firms are involved in collective resource optimization with each other and with the local community through physical exchanges of energy, water, materials, byproducts and services - referenced in the industrial ecology literature as "industrial symbiosis". EIPs, when compared with standard industrial resource sharing networks, prove to be of greater public advantage as they offer improved environmental and economic benefits, and higher operational efficiencies both upstream and downstream in their supply chain.
Although there have been many attempts to adapt EIP methodology to existing industrial sharing networks, most of them have failed for various factors: geographic restrictions by governmental organizations on use of technology, cost of technology, the inability of industries to effectively communicate their upstream and downstream resource usage, and to diminishing natural resources such as water, land and non-renewable energy (NRE) sources for energy production.
This paper presents a feasibility study conducted to evaluate the comparative environmental, economic, and geographic impacts arising from the use of renewable energy (RE) and NRE to power EIPs. Life Cycle Assessment (LCA) methodology, which is used in a variety of sectors to evaluate the environmental merits and demerits of different kinds of products and processes, was employed for comparison between these two energy production methods based on factors such as greenhouse gas emission, acidification potential, eutrophication potential, human toxicity potential, fresh water usage and land usage. To complement the environmental LCA analysis, levelized cost of electricity was used to evaluate the economic impact. This model was analyzed for two different geographic locations; United States and Europe, for 12 different energy production technologies.
The outcome of this study points out the environmental, economic and geographic superiority of one energy source over the other, including the total carbon dioxide equivalent emissions, which can then be related to the total number of carbon credits that can be earned or used to mitigate the overall carbon emission and move closer towards a net zero carbon footprint goal thus making the EIPs truly sustainable.
Although there have been many attempts to adapt EIP methodology to existing industrial sharing networks, most of them have failed for various factors: geographic restrictions by governmental organizations on use of technology, cost of technology, the inability of industries to effectively communicate their upstream and downstream resource usage, and to diminishing natural resources such as water, land and non-renewable energy (NRE) sources for energy production.
This paper presents a feasibility study conducted to evaluate the comparative environmental, economic, and geographic impacts arising from the use of renewable energy (RE) and NRE to power EIPs. Life Cycle Assessment (LCA) methodology, which is used in a variety of sectors to evaluate the environmental merits and demerits of different kinds of products and processes, was employed for comparison between these two energy production methods based on factors such as greenhouse gas emission, acidification potential, eutrophication potential, human toxicity potential, fresh water usage and land usage. To complement the environmental LCA analysis, levelized cost of electricity was used to evaluate the economic impact. This model was analyzed for two different geographic locations; United States and Europe, for 12 different energy production technologies.
The outcome of this study points out the environmental, economic and geographic superiority of one energy source over the other, including the total carbon dioxide equivalent emissions, which can then be related to the total number of carbon credits that can be earned or used to mitigate the overall carbon emission and move closer towards a net zero carbon footprint goal thus making the EIPs truly sustainable.
ContributorsGupta, Vaibhav (Author) / Calhoun, Ronald J (Thesis advisor) / Dooley, Kevin (Committee member) / Phelan, Patrick (Committee member) / Arizona State University (Publisher)
Created2014
Description
Industrial activities have damaged the natural environment at an unprecedented scale. A number of approaches to environmentally responsible design and sustainability have been developed that are aimed at minimizing negative impacts derived from products on the environment. Environmental assessment methods exist as well to measure these impacts. Major environmentally responsible approaches to design and sustainability were analyzed using content analysis techniques. The results show several recommendations to minimize product impacts through design, and dimensions to which they belong. Two products made by a manufacturing firm with exceptional commitment to environmental responsibility were studied to understand how design approaches and assessment methods were used in their development. The results showed that the company used several strategies for environmentally responsible design as well as assessment methods in product and process machine design, both of which resulted in reduced environmental impacts of their products. Factors that contributed positively to reduce impacts are the use of measurement systems alongside environmentally responsible design, as well as inspiring innovations by observing how natural systems work. From a managerial perspective, positive influencing factors included a commitment to environmental responsibility from the executive level of the company and a clear vision about sustainability that has been instilled from the top through every level of employees. Additionally, a high degree of collaboration between the company and its suppliers and customers was instrumental in making the success possible.
ContributorsHuerta Gajardo, Oscar André (Author) / Giard, Jacques (Thesis advisor) / White, Philip (Committee member) / Dooley, Kevin (Committee member) / Arizona State University (Publisher)
Created2014