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Characterization of novel adsorbents for recovery of biofuels

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Due to depletion of oil resources, increasing fuel prices and environmental issues associated with burning of fossil fuels, extensive research has been performed in biofuel production and dramatic progress has been made. But still problems exist in economically production of biofuels. One major problem is recovery of biofuels from fermentation…

Due to depletion of oil resources, increasing fuel prices and environmental issues associated with burning of fossil fuels, extensive research has been performed in biofuel production and dramatic progress has been made. But still problems exist in economically production of biofuels. One major problem is recovery of biofuels from fermentation broth with the relatively low product titer achieved. A lot of in situ product recovery techniques including liquid-liquid extraction, membrane extraction, pervaporation, gas stripping and adsorption have been developed and adsorption is shown to be the most promising one compared to other methods. Yet adsorption is not perfect due to defect in adsorbents and operation method used. So laurate adsorption using polymer resins was first investigated by doing adsorption isotherm, kinetic, breakthrough curve experiment and column adsorption of laurate from culture. The results indicate that polymer resins have good capacity for laurate with the highest capacity of 430 g/kg achieved by IRA-402 and can successfully recover laurate from culture without causing problem to Synechocystis sp.. Another research of this paper focused on a novel adsorbent: magnetic particles by doing adsorption equilibrium, kinetic and toxicity experiment. Preliminary results showed excellent performance on both adsorption capacity and kinetics. But further experiment revealed that magnetic particles were toxicity and inhibited growth of all kinds of cell tested severely, toxicity probably comes from Co (III) in magnetic particles. This problem might be solved by either using biocompatible coatings or immobilization of cells, which needs more investigation.
ContributorsWang, Yuchen (Author) / Nielsen, David Ross (Thesis advisor) / Andino, Jean (Committee member) / Torres, Cesar (Committee member) / Arizona State University (Publisher)
Created2012

In Memory of an Emily

Description
In Memory of an Emily is a piece of creative nonfiction and a short film that together detail the author’s experience with mental illness in the collegiate environment. In its 45 pages, Jackman begins to detail the realities of living with depression, anxiety, and anorexia nervosa. The piece includes five…

In Memory of an Emily is a piece of creative nonfiction and a short film that together detail the author’s experience with mental illness in the collegiate environment. In its 45 pages, Jackman begins to detail the realities of living with depression, anxiety, and anorexia nervosa. The piece includes five sections of writing, including a preface and four portions describing freshman to senior year. Each section endeavors to explore simplistic and purposefully cliché events common in young adult/collegiate life and juxtapose the banal nature of these events with the experience of the mentally ill. Her story endeavors to explore the emotional truths of pain and suffering, revealing that beneath her tender façade lies a very different existence, one tangled in eating disorders, panic attacks, and overwhelming sadness. While maintaining a story-like quality traditional to creative non-fiction, Jackman ventures to warn with a cautionary tale of pathologizing abnormality and exploring the long lasting effects of childhood trauma. Weaving careful storytelling into an exploration of the mentally ill mind, Jackman keeps the reader both terrifyingly close and far away, whispering painful secrets and then desperately running away with the truth. She speaks frankly of all aspects of life, ranging from far more mundane events, such as break ups and college rejection letters, to complicated issues, such as the suicide of her grandfather and her admission into an eating disorder facility. The author attempts to establish a balanced rapport with the reader, recognizing the need to maintain distance and elicit emotion simultaneously. Jackman writes In Memory of an Emily as a heartbreaking but authentic tale, playing with stream of consciousness and paralyzing emotional description. She opens the door and invites the reader into her mind so as to share in the physical and emotional discomfort of the storyteller, but then promptly slams the door once inside.
ContributorsJackman, Emily Deprey (Author) / Soares, Rebecca (Thesis director) / Barca, Lisa (Committee member) / Economics Program in CLAS (Contributor) / Department of Psychology (Contributor) / School of Mathematical and Statistical Sciences (Contributor) / Barrett, The Honors College (Contributor)
Created2018-05
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(Re)memories of Slavery: An Examination of the Traumatic Past,Present, and Future Depicted in Toni Morrison’s Beloved

Description

The application of Toni Morrison’s Beloved as a lens through which one can analyze intergenerational trauma on an individual and communal level results in a blueprint towards a remedial process. The characters and their experiences in her novel are representative of a myriad of ways in which trauma is manifested.…

The application of Toni Morrison’s Beloved as a lens through which one can analyze intergenerational trauma on an individual and communal level results in a blueprint towards a remedial process. The characters and their experiences in her novel are representative of a myriad of ways in which trauma is manifested. I have broken down the concept of intergenerational trauma into the idea that it can be seen as the state where one is both simultaneously “falling” and “fallen” at the same time. Used here, the term “falling” refers to the consistent, individual trauma that one is experiencing. On the other hand, the term “fallen” refers to the trauma that a community as a whole has experienced and internalized. This framework that I establish based off of Beloved is a launching point for the conversation surrounding the topic of remedial actions in relation to intergenerational trauma that resulted from slavery. Using it as a basis of knowledge allows one to truly gather the weight of the situation regarding trauma postbellum. Considering the current climate surrounding any meaningful dialogue, knowledge is one of the most important aspects. Along with the concepts of “falling”/”fallen,” I also coined the term productive memory, which refers to the act of confrontation as well as the remembering of intergenerational trauma. The use of productive memory is imperative in addressing the prior ideas presented regarding intergenerational trauma and the possible pathways to move forward.
ContributorsCampbell, Hugh Fitz (Author) / Soares, Rebecca (Thesis director) / Agruss, David (Committee member) / School of Politics and Global Studies (Contributor) / Economics Program in CLAS (Contributor) / Barrett, The Honors College (Contributor)
Created2021-05
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The Letter

Description
This excerpt of my novel, The Letter, is about a girl named Gwen who moves across the country to deal with the loss of her father. When she moved into Palm Castle and creates a connection with Blake Everton both through a magical portal and through letters they exchange, she…

This excerpt of my novel, The Letter, is about a girl named Gwen who moves across the country to deal with the loss of her father. When she moved into Palm Castle and creates a connection with Blake Everton both through a magical portal and through letters they exchange, she begins to heal from her trauma caused by grief.
ContributorsKeller, Lauren Alison (Author) / Van Engen, Dagmar (Thesis director) / Soares, Rebecca (Committee member) / Department of Marketing (Contributor) / Barrett, The Honors College (Contributor)
Created2020-12