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Student capstone and applied projects from ASU's School of Sustainability.

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A PET Circular Economy for The City of Phoenix

Description
The City of Phoenix is interested in bringing a plastic processing facility to the Phoenix metro area. A facility could potentially to increase the diversion rates of recyclables, allow for more efficient use of locally reclaimed material and bring new jobs to the Phoenix metropolitan economy. Contrary to the classic…

The City of Phoenix is interested in bringing a plastic processing facility to the Phoenix metro area. A facility could potentially to increase the diversion rates of recyclables, allow for more efficient use of locally reclaimed material and bring new jobs to the Phoenix metropolitan economy. Contrary to the classic “put it in the bin, we’ll take care of it” attitude presented by large recyclers such as Waste Management and Republic Services, recycling economics are complex; often both a beacon of technological advancement and a lagger with regard to spot-market capabilities. Based on interviews with elite stakeholders and industry research, this mixed method paper will examine the current PET plastic recycling market and the potential for Phoenix to increase its circular manufacturing of plastic. The final analysis will culminate in a proposed set of recommendations that could help Phoenix achieve its long-term waste diversion goals.
ContributorsPunnett, Garr (Author)
Created2018

Beneath the Streets: New Tools for Managing Degrading Sewer Infrastructure

Description
Infrastructure degradation is a chronic problem for fats, oils, and grease (FOG) pretreatment programs at wastewater utilities, which can lead to harmful bypass and high loss of a renewable energy feedstock. Not only does this exacerbate the potential for environmental harm, but not taking advantage of this resource leaves most…

Infrastructure degradation is a chronic problem for fats, oils, and grease (FOG) pretreatment programs at wastewater utilities, which can lead to harmful bypass and high loss of a renewable energy feedstock. Not only does this exacerbate the potential for environmental harm, but not taking advantage of this resource leaves most FOG anaerobic digestion programs non-resilient and non-scalable. It is vital that there are strategies utilizing a sustainability perspective and integration of hard and soft infrastructure management principles to address this infrastructure degradation issue before there can be fully implemented zero-waste, FOG resource recovery initiatives. This applied project sought to answer the question, “How can municipalities sustainability manage the issue of degrading FOG pretreatment infrastructure?” with an emphasis on providing an applied example where a sustainability approach can mitigate complex, infrastructure problems. In partnership with the City of Tempe’s Environmental Services Section, this project addressed the issue of degrading infrastructure by crafting and implementing a comprehensive Infrastructure Assistance Program (IAP). Designed to assist food service establishments (FSEs) and wastewater utilities, the IAP provides pathways for preventing FOG infrastructure degradation through initiatives that bolster hard and soft infrastructure to support a more efficient means of achieving compliance and local goals for resource recovery and renewable energy.
ContributorsPhillips, Katie (Author) / Mac, Cassandra (Contributor) / McNeil, David (Contributor) / Dalton, Richard (Contributor)
Created2018-04-27