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This study analyzes the feasibility of using algae cultivated from wastewater effluent to produce a biodiesel feedstock. The goal was to determine if the energy produced was greater than the operational energy consumed without consideration to constructing the system as well as the emissions and economic value associated with the

This study analyzes the feasibility of using algae cultivated from wastewater effluent to produce a biodiesel feedstock. The goal was to determine if the energy produced was greater than the operational energy consumed without consideration to constructing the system as well as the emissions and economic value associated with the process.

Four scenarios were created:
       1) high-lipid, dry extraction.
       2) high-lipid, wet extraction.
       3) low-lipid, dry extraction.
       4) low-lipid, wet extraction.
In all cases, the system required more energy than it produced. In high lipid scenarios, the energy produced is close to the energy consumed, and a positive net energy balance may be achieved with minor improvements in technology or accounting for coproducts. In the low lipid scenarios, the energy balance is too negative to be considered feasible. Therefore the lipid content affects the decision to implement algae cultivation.

The dry extraction and the wet extraction both require some level of mechanical drying and this makes the two methods yield similar results in terms of the energy analysis. Therefore, the extraction method does not dramatically affect the decision for implementing algae-based oil production from an energetic standpoint. The economic value of the oil in both high lipid scenarios results in a net profit despite the negative net energy. Emission calculations resulted in avoiding a significant amount of CO2 for high lipid scenarios but not for the low lipid scenarios. The CO2 avoided does not account for non-lipid biomass, so this number is an underestimation of the final CO2 avoided from the end products.

While the term "CO2 avoided" has been used for this study, it should be noted that this CO2 would be emitted upon use as a fuel source. These emissions, however, are not “new” CO2 because it has already been emitted and is being captured and recycled. Currently, literature is very divisive on the lipid content present in algae and this study shows that lipid content has a tremendous affect on energy and emissions impacts. The type of algae that can grow in wastewater effluent also should be investigated as well as the conditions that promote high lipid accumulation. The dewatering phase must be improved as it is extremely energy intensive and dominates the operational energy balance.

In order to compete, wet extraction must have a much more significant effect on the drying phase and must avoid the use of the human toxicants methanol and chloroform. Additionally, while the construction phase was beyond the scope of this project it may be a critical aspect in determining the feasibility these systems. Future research in this field should focus on lipid production, optimizing the belt dryer or finding a different method of dewatering, and allocating the coproducts.

Created2012-05
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Description
This six month IRB approved qualitative study was held at Arizona State University to see how a group of seven university dancers' body appreciation and body perception would be affected by introduction and familiarized with Bartenieff Fundamentals and other somatic practices. During this process the individuals gained knowledge about their

This six month IRB approved qualitative study was held at Arizona State University to see how a group of seven university dancers' body appreciation and body perception would be affected by introduction and familiarized with Bartenieff Fundamentals and other somatic practices. During this process the individuals gained knowledge about their own bodies through somatic movement activities, journal writings, group discussions, and personal interviews. Movers then used this knowledge to create movement phrases that represented their own personal journeys with body image struggles, doubts, and insecurities. These movement phrases were then linked together in a 40-minute expressive movement piece that represented the journey the group of movers had made and was still making together.
ContributorsRodgers, Patricia (Author) / Jackson, Naomi (Thesis advisor) / Britt, Melissa (Committee member) / Vissicaro, Pegge (Committee member) / Arizona State University (Publisher)
Created2014
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Description
Transformation Is... is an arts practice-led research in Dance and Design, embodying and materializing concepts of structure, leadership and agency and their role in bringing about desired social transformation. My personal experiences as a foreign student interested in transformative experiences gave origin to this arts practice-led research. An auto-ethnographic approach

Transformation Is... is an arts practice-led research in Dance and Design, embodying and materializing concepts of structure, leadership and agency and their role in bringing about desired social transformation. My personal experiences as a foreign student interested in transformative experiences gave origin to this arts practice-led research. An auto-ethnographic approach informed by grounded theory methods shaped this creative inquiry in which dance was looked at as data and rehearsals became research fields. Within the context of social choreography, a transformational leadership style was applied to promote agency using improvisational movement scores to shape individual and collective creative explorations. These explorations gave birth to a flexible and transformable dance installation that served as a metaphor for social structure. Transformation revealed itself in this research as a sequence of process and product oriented stages that resulted in a final performance piece in which a site-specific interactive installation was built before the audience's eyes. This work became a metaphor of how individual actions and interactions effect the construction of social reality and how inner-transformation and collaboration are key in the process of designing and building new egalitarian social structures.
ContributorsSibauste Bermudez, Janelle (Author) / Kaplan, Robert (Thesis advisor) / Britt, Melissa (Committee member) / Standley, Eileen (Committee member) / Arizona State University (Publisher)
Created2014
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Description
"Linked Together" is a choreographic piece inspired by at-risk youth and their ability to learn, grow, and transform their lives through dance. The idea for the piece originated from dance programs implemented with under-resourced populations in Virginia, Panama, and India. My teaching experiences in these places sparked the development of

"Linked Together" is a choreographic piece inspired by at-risk youth and their ability to learn, grow, and transform their lives through dance. The idea for the piece originated from dance programs implemented with under-resourced populations in Virginia, Panama, and India. My teaching experiences in these places sparked the development of a longer, more comprehensive dance program in Arizona, with a Boys and Girls Club. The Arizona dance program included specific somatics exercises, focused on the integration of mind and body, as well as other types of improvisations, to help the participants learn about movement concepts and develop original movement.

The title "Linked Together" suggests that all people are connected in many ways, regardless of personal differences such as socioeconomic status or language. The dancers included myself, Arizona State University (ASU) dance students, as well as Boys and Girls Club dance program participants. For the concert, all dancers portrayed stories and concepts related to empowerment through emotionally charged movement, and thereby provided audience members with a visceral lens through which to see the transformative powers of dance. The data collected from this project through observations, surveys, and interviews suggest that constructive behaviors that are internalized through dance can flow seamlessly into the non-dance world, encouraging people to think creatively, collaborate with others, gain a sense of ownership, and feel empowered in all parts of life.
ContributorsDaniel, Chareka (Author) / Fitzgerald, Mary (Thesis advisor) / Britt, Melissa (Committee member) / Manning, Linda (Committee member) / Arizona State University (Publisher)
Created2015
Description

The research topic for this assignment is shrimp farming in Thailand located throughout the coastal areas of the southern, eastern, and central regions of the country. Thailand’s huge shrimp export driven industry represents one of the largest in the world accounting for over twenty-five percent of food exports out of

The research topic for this assignment is shrimp farming in Thailand located throughout the coastal areas of the southern, eastern, and central regions of the country. Thailand’s huge shrimp export driven industry represents one of the largest in the world accounting for over twenty-five percent of food exports out of the country (Sriboonchitta & Wiboonpongse, n.d.).

Specific research questions include:
       1. What are the current unsustainable practices in shrimp farm production?
       2. In what part of the life cycle should intervention take place?
       3. What does a sustainable shrimp farming practice look like in the future?

Created2012-05
Description

Anticipatory LCA seeks to overcome the paucity of data through scenario development and thermodynamic bounding analyses. Critical components of anticipatory LCA include:
       1) Laboratory-scale inventory data collection for nano-manufacturing processes and
           preliminary performance evaluation.
       2) Thermodynamic modeling of manufacturing processes and developing scenarios

Anticipatory LCA seeks to overcome the paucity of data through scenario development and thermodynamic bounding analyses. Critical components of anticipatory LCA include:
       1) Laboratory-scale inventory data collection for nano-manufacturing processes and
           preliminary performance evaluation.
       2) Thermodynamic modeling of manufacturing processes and developing scenarios of     
           efficiency gains informed by analogous material processing industries.
       3) Use-phase bounding to report inventory data in a functional unit descriptive of
           performance.

Together, these analyses may call attention to environmentally problematic processes or nanotechnologies before significant investments in R&D and infrastructure contribute to technology lock in. The following case study applies these components of anticipatory LCA to single wall carbon nanotube (SWCNT) manufacturing processes, compares the rapid improvements in SWCNT manufacturing to historic reductions in the embodied energy of aluminum, and discusses the use of SWCNTs as free-standing anodes in advanced lithium ion batteries.

Created2012-05
Description

Sonoma County, CA is on an ambitious pathway to meeting stringent carbon emissions goals that are part of California Assembly Bill 32. At the county-level, climate planners are currently evaluating options to assist residents of the county in reducing their carbon footprint and also for saving money. The Sonoma County

Sonoma County, CA is on an ambitious pathway to meeting stringent carbon emissions goals that are part of California Assembly Bill 32. At the county-level, climate planners are currently evaluating options to assist residents of the county in reducing their carbon footprint and also for saving money. The Sonoma County Energy Independence Program (SCEIP) is one such county-level measure that is currently underway. SCEIP is a revolving loan fund that eligible residents may utilize to install distributed solar energy on their property. The fund operates like a property tax assessment, except that it only remains for a period of 20 years rather than in perpetuity.

This analysis intends to estimate the potential countywide effect that the $100M SCEIP fund might achieve on the C02 and cost footprint for the residential building energy sector. A functional unit of one typical home in the county is selected for a 25 year analysis period. Outside source data for the lifecycle emissions generated by the production, installation and operations of a PV system are utilized. Recent home energy survey data for the region is also utilized to predict a “typical” system size and profile that might be funded by the SCEIP program. A marginal cost-benefit calculation is employed to determine what size solar system a typical resident might purchase, which drives the life cycle assessment of the functional unit. Next, the total number of homes that might be financed by the SCEIP bond is determined in order to forecast the potential totalized effect on the County’s lifecycle emissions and cost profile.

The final results are evaluated and it is determined that the analysis is likely conservative in its estimation of the effects of the SCEIP program. This is due to the fact that currently offered subsidies are not utilized in the marginal benefit calculation for the solar system but do exist, the efficiency of solar technology is increasing, and the cost of a system over its lifecycle is currently decreasing. The final results show that financing distributed solar energy systems using Sonoma County money is a viable option for helping to meet state mandated goals and should be further pursued.

Created2012-05
Description

Our objectives are to:
       1. Review the LCA literature to determine the dominant environmental impact categories in
           wild-caught fisheries in order to evaluate which phases are causing the greatest impacts.
       2. Determine how these impacts can best be mitigated and develop a

Our objectives are to:
       1. Review the LCA literature to determine the dominant environmental impact categories in
           wild-caught fisheries in order to evaluate which phases are causing the greatest impacts.
       2. Determine how these impacts can best be mitigated and develop a framework that seeks
           to incorporates LCA into sustainable seafood guides so that consumers can make better-
           informed decisions.

This framework will include developing meaningful LCA impact categories for sustainable seafood guides. Despite their importance, we considered social factors beyond the scope of this paper.

Created2012-05