Sustainability Commons^™

Characterization Of Mechanically Recycled Polylactic Acid (Pla) Filament For 3d-Printing By Evaluating Mechanical, Thermal, And Chemical Properties And Process Performance, Mahsa Shabani Samghabady

All Theses

Polylactic acid (PLA) is a biopolymer made from renewable resources such as sugar and corn. PLA filament is a popular material used in Fused Deposition Modeling (FDM) 3D-printing. While this material has many advantages, all the failed parts, support structures, rafts, nozzle tests, and the many prototype iterations during the 3D-printing process contribute to the plastic pollution and release of greenhouse gases. Although PLA is biodegradable, it can take years to degrade in landfills. Instead of throwing away PLA waste and buying new filaments, PLA can be recycled. Amongst the different recycling technologies, mechanical recycling is the most environmentally friendly. …

Recycling In The Mountain West, Zachary Billot, Caitlin J. Saladino, William E. Brown Jr.

Environment

This fact sheet synthesizes data on rates of recycling from the March 2021 report "50 States of Recycling," sponsored by the Ball Corporation.The information presented in this document focuses on the effectiveness of recycling in total and by recyclable item, as well as the quantity of product recycled specifically within the Mountain West states of Arizona, Colorado, Nevada, New Mexico, and Utah.

Trademark's Grip Over Sustainability, Daniel R. Cahoy

University of Colorado Law Review

Entrepreneurs and larger firms are waking up to the fact that there is a viable market for recycled, repaired, and even upcycled goods. There is also an increasing desire on the consumer end for more sustainable products as well as measures to reduce landfill and other product disposal harms to the environment. Although some legal barriers to this new market are being actively debated, other barriers have taken a back seat and seem primed to surge only when increased business activity exposes the liability. This is the case with trademark law, which has the potential to substantially deter the small-firm …

Comprehensive Recycling Utilization Technology Of Foundation Engineering Slurry, Xie Hui, Ye Jingliang, Chen Juan, Xue Man, Hu Huicong, Yang Xianyu, Cai Jihua

Coal Geology & Exploration

Foundation engineering slurry in the fields of underground continuous walls, horizontal directional drilling, shield, and pipe jacking has the characteristics of large amount of consumption and relatively single pollutant. With the implementation of various national environmental protection laws and regulations, the comprehensive treatment of slurries is particularly important. In this paper, a set of comprehensive recycling utilization technology of foundation engineering slurry was proposed. The technology of sand removal plus recycling of purified slurry and drilling cuttings can be adopted to the circulating slurry, and the technology of calcium removing, pH reducing, flocculation separation, pressure filtration and recycling of wastewater …

Recycling And Practicing Sustainability At Umf, Brittany Brown, Madison Farris, Ali Gilman, Paris Howes, Miles Kelleher, Abby Washburn, Malachi Wilson

Research Learning Experiences (RLEs)

Students in the Fall 2022 First-year Fusion course titled “The Sustainable Campus” used the UMF campus as a learning laboratory to examine how principles of environmental sustainability and stewardship are put into practice in their own academic backyard. Throughout the semester, they researched, observed, visited, assessed, and reported on a host of sustainability-related initiatives undertaken over the years at UMF. In this final project presentation, the class offers its recommendations on how UMF can continue its mission to maintain an environmentally aware and sustainably operated campus.

Barriers To Student Engagement With Waste Diversion: Recycling And Composting Practices On The University Of Denver Campus, Izzy Beltran, Madeline Bonner, Dan Oxendine, Jason Tipler, Jules Mello, Tommy Dainko

Anthropology: Undergraduate Student Scholarship

This project sought to investigate barriers, facilitators, and behavioral patterns related to waste diversion on the University of Denver (DU) campus. In general, waste diversion can be defined as the methods of disposing of waste that prevent it from being deposited in a landfill. At the University of Denver, waste diversion is achieved primarily through recycling and composting. It is these two methods that our report will focus on.

Circular Economy And The Potential For Extended Producer Responsibility Policies, Erin Quinn

Senior Honors Projects, 2020-current

This thesis was developed based on an Extended Producer Responsibility (EPR) Policy briefing I created during my internship at RISE (Responsible Industry for a Sound Environment) during the summer of 2021. This project expands upon the work created during the internship. It examines the connection between circular economy and EPR policies, as well as how they can create effective strategies for waste reduction and recycling in the U.S. It demonstrates how the current linear economic system under which the U.S operates and its connection to single-stream recycling are inefficient at best. The thesis then describes how a circular economy (CE) …

Fy 2022 Umass Amherst Waste Management Report, Ezra Small

Campus Data

Each year the Office of Waste Management publishes this report which totals recycling and refuse data for the campus.

Plastic Recycling Is Inefficient And Expensive, Clark S. Adomaitis

Capstones

Plastics production and incineration contributes more than 850 million metric tons to the emissions that are causing climate change. Emissions are growing at a moment when scientists and world leaders are in agreement that they need to dramatically decrease. Environmentalists say that plastic production makes up 4.5% of global greenhouse gas emissions. New plastic plants opening in the U.S. do not line up with emission reduction goals.

At the end of plastics’ lives, a lot of what we’re putting into our recycling bins isn’t getting recycled. In fact, only 18% of trash from New York City homes is actually recycled. …

Supporting Renewable Energy Market Growth Through The Circular Integration Of End-Of-Use And End-Of-Life Photovoltaics, Erika Marsillac

Information Technology & Decision Sciences Faculty Publications

Energy demand continues to grow with the world’s burgeoning population. Meeting energy needs through renewable sources allows for market growth with limited environmental impact, but sourcing constraints can limit production, creating industrial and environmental problems. The exploitation of end-of-use and end-of-life photovoltaic (PV) options that are traditionally treated as waste offers a valuable opportunity to support renewable energy market growth with fewer sourcing constraints and minimal environmental impacts, but this circular investment has not yet been broadly implemented, nor is broad guidance widely available to aid its implementation. From a business perspective, this paper discusses the technical issues, assesses the …

Economic Feasibility Of Mixed Plastic Waste Pyrolysis Using Twin Reactor System In Northwest Arkansas, Carol Rogers, Patricia Means, Renato Gonzalez, Kaida Sheets, Hayden Townsend

Chemical Engineering Undergraduate Honors Theses

Plastic waste generation is increasing at an unsustainable rate while recycling solutions remain stagnant. As a chemical means of recycling, mixed plastic waste pyrolysis can generate synthetic oil appropriate for use as fuel in power generation from plastic waste that otherwise accumulates in landfills. With the scaling of a commercial plastic pyrolysis process in Northwest Arkansas (NWA) modeled after an operational sawdust pyrolysis unit in Huntsville, Arkansas, economic analysis resulted in 26.3% internal rate of return. Therefore, construction of a commercial mixed plastic-to-fuel pyrolysis plant is economically justified and should be pursued. To effectively implement the proposed design, NWA must …

The Economic And Environmental Effects Of Recycling Plastic In South Carolina, Sophia Gouhin

Senior Theses

The state of South Carolina generated 4,809,041 tons of municipal solid waste during the fiscal year of 2019 (July 1, 2018 to June 30, 2019). During this same period, the state maintained an average municipal solid waste recycling rate of 28.2% (Toomey, 2019b). This thesis gives an in-depth look in to the economic and environmental effects of recycling, specifically plastic, in South Carolina. I have researched and analyzed the process, capabilities, and impact of recycling plastic in South Carolina. This includes all seven types of plastic as classified by their chemical makeup. In addition, I surveyed South Carolina residents to …

Fy 2021 Umass Amherst Waste Management Report, Ezra Small

Campus Data

Each year the Office of Waste Management publishes this report which totals recycling and refuse data for the campus.

A Sustainability Machine: The Incineration-Based Waste Regime In Tampa, Fl, Usa, Kevin P. Martyn

USF Tampa Graduate Theses and Dissertations

Recent history has seen some significant changes in terms of how society thinks about and deals with its wastes. Increasingly troubling indications of the immediacy of ecological concerns, now often described by the Anthropocene concept, have been provocative of a reinvigorated fervor for a sustainability transition. As a result, sustainability has become well-established as both an urgent pursuit and an eminently pliable buzzword. This research describes and explains one key aspect of society’s pursuit of some version of sustainability: our relationship with waste.

The site of this research is Tampa, Florida, a sunbelt city with a unique waste management system. …

Composite Zeolite Beta Catalysts For Catalytic Hydrocracking Of Plastic Waste To Liquid Fuels, Dureem Munir, Hassaan Amer, Rabya Aslam, Mohamed Bououdina, Muhammad Rashid Usman

Publications and Scholarship

Abstract The conversion of model waste plastic mixture into high-value liquid product was studied in the presence of hydrogen and composites of zeolite beta catalysts. For the sake of comparison, the conversion of actual waste plastic mixture and high-density polyethylene was also carried out. The composite zeolite beta catalysts were synthesized using a range of silica-to-alumina ratios, alkali concentrations, and hydrothermal treatment times. SEM, EDX, XRD, N2-BET, FTIR, and py-FTIR were used for the characterization of the catalysts. The catalytic experiments were conducted in a 500 ml stirred batch reactor at 20 bar initial cold H2 pressure and the temperature …

Campus Waste System Evaluation, Dsm Environmental Services

Sustainability Reports & Plans

UMass contracted with DSM Environmental Services (DSM), with sub-contractors MSW Consultants (MSW) and Kessler Consulting, Inc. (KCI), together the Project Team, to undertake a comprehensive analysis of the UMass Amherst campus waste management and materials diversion system. The Project Team were required to conduct nine tasks as part of the comprehensive analysis, as summarized below:

• Map the existing UMass waste and materials collection system;
• Review the characteristics, procedures, schedules, and roles;
• Evaluate the effectiveness and efficiency of the current system;
• Review existing waste generation and composition data, and conduct a campus-wide waste audit if the review …

Fy 2020 Umass Amherst Waste Management Report, Ezra Small

Campus Data

Each year the Office of Waste Management publishes this report which totals recycling and refuse data for the campus.

Meubles: The Ever Mobile Middle Ages, Elizabeth Emery

Department of World Languages and Cultures Faculty Scholarship and Creative Works

Medieval furnishings preserved in aristocratic estates and ecclesiastical institutions took on new life in the nineteenth century as the turmoil of the French Revolution reactivated their use value, transforming them into collectibles, fuel, or raw materials for new building projects. This essay relies on the taxonomies of reuse proposed by archaeologist Michael Schiffer to evaluate the preservation, recycling, and repurposing of objects such as medieval choir stalls, chests, and beds by conservators, architects, artists, and collectors Alexandre Du Sommerard, Eugène-Emmanuel Viollet-le-Duc, Albert Jacquemart, Victor Hugo, Pierre Loti, and Frédéric Spitzer. These prominent figures' repurposing of antique furniture mirrors nineteenth-century constructions …

Zero Waste, Spring/Summer 2017, Issue 36

Sustain Magazine

No abstract provided.

Fy 2019 Umass Amherst Waste Management Report, Ezra Small

Campus Data

Each year the Office of Waste Management publishes this report which totals recycling and refuse data for the campus.

Making Soap Green, Asia Sweet

Thinking Matters Symposium Archive

The One Gallon Soap Company (OGSC) recycles partially used bar soap from local Portland hotels and repurposes it as liquid hand soap. The preliminary formulations originally prepared by the OGSC produced a smooth, homogeneous liquid soap with good foaming action. However, over short and often variable time periods, the soap would separate into two layers: a watery bottom layer with little foaming action and an oily top layer. The OGSC asked the USM Chemistry Department to investigate the formulation process in an effort to provide a more stable product – one that would maintain a constant consistency over several months.

Fy 2018 Umass Amherst Waste Management Report, Ezra Small

Campus Data

Each year the Office of Waste Management publishes this report which totals recycling and refuse data for the campus.

Fy 2017 Umass Amherst Waste Management Report, John Pepi

Campus Data

Each year the Office of Waste Management publishes this report which totals recycling and refuse data for the campus.

From Planning To Passing: The Amherst, Massachusetts Plastic Bag Ban, Kevin J. Hollerbach

Student Showcase

This case study will detail the background and influences for a plastic bag ban in the town of Amherst, outline the steps taken from planning to passage, and address roadblocks and missteps that may be avoided with the implementation of future bans. It is my hope that this document will not only serve as a guide, but also an inspiration for additional local action in Massachusetts and across the country. No matter what the national political climate or attitude towards environmental issues, local action is always possible, and change is usually easier than you think. Think globally, act locally!

Umass Amherst Guide To Zero-Waste Events, Kevin J. Hollerbach, Ainsley Brosnan-Smith

Student Showcase

As the University of Massachusetts Amherst continues to grow, and as programming for the campus community becomes an ever-rising priority, events organizers will need to consider the waste implications of every event to comply with state and University standards, goals, and policies. This "Guide to Zero-Waste Events" aims to streamline the planning process as well as provide tips and examples for follow-through to implementing a successful zero-waste event. The guide also presents actionable policy recommendations for the University to reduce waste and increase diversion from large-scale outdoor events on the UMass Amherst campus.

Fy 2016 Umass Amherst Waste Management Report, John Pepi

Campus Data

Each year the Office of Waste Management publishes this report which totals recycling and refuse data for the campus.

Waste Reduction At Western Kentucky University, Elizabeth Mcgrew

Faculty/Staff Personal Papers

Handout created to show the single stream recycling trend at Western Kentucky University between 2012 and 2015.

Using Collaborations To Improve Campus Recycling, James Taylor

Campus Sustainability

Presentation made to the ACUHO-I / APPA Housing Facilities Conference, Wednesday, Oct. 21, 2015 in St. Petersburg, FL.

Fy 2015 Umass Amherst Waste Management Report, John Pepi

Campus Data

Each year the Office of Waste Management publishes this report which totals recycling and refuse data for the campus.

The Clark University Community Thrift Store, Monica Phung

NECSC Conference 2015

The Clark Community Thrift Store is a student-run non-profit business that helps cut down on over-consumption and waste and provides inexpensive college essentials, house wares, furniture, and gently used clothing to the Clark community and the surrounding area. The Community Thrift Store has a mission of providing sustainable and affordable items to the community. Our session will workshop the process of opening a sustainable campus thrift store, and allow for an open conversation about what it means to run a sustainable business. The session will be built around the audience, and will be led by what they are interested in …