Project Title: University of Illinois Urbana-Champaign Campus Building Waste Characterization & Opportunity Assessment
Sector: Higher Education
Location: Champaign-Urbana, IL
Services: Waste Characterization/Reduction/Management, Stakeholder Engagement, Fostering Sustainable Behavior, Implementation Assistance
Background: Beginning in 2014, the ISTC Technical Assistance Program (TAP) Zero Waste Illinois team worked with F&S on a two-phase building waste characterization study, which involved sampling and characterizing waste streams from eight buildings, including two residence halls, one academic building with laboratories, one academic building without laboratories, an administrative building, the student union, a bookstore, and a mixed-use event building. Each building was also audited for the availability and location of refuse and recycling bins. Additionally, employee and student occupants of the study buildings were surveyed to gauge knowledge of current programs, gaps in service, and overall satisfaction with the campus recycling program. With this data, TAP made recommendations to improve waste reduction and diversion for the individual buildings, as well as campus-wide recommendations. See “University of Illinois Urbana-Champaign Campus Waste Characterization Studies 2014-2015“ for further details.
In 2019, TAP also conducted an indoor solid waste and recycling collection and infrastructure assessment and improvement study, which among other recommendations, spurred the acquisition and deployment of new three-bin recycling collection stations to improve the consistency of recycling infrastructure, in an effort to increase both the quantity and quality of recyclable materials recovered on campus.
In Fall 2021, TAP began discussions with representatives from the F&S Waste Management department, the Institute of Sustainability, Energy, and Environment (iSEE), and the Illini Union (one of the buildings included in the aforementioned campus building waste characterization study) about conducting follow-up campus waste audits. These discussions included interest in ascertaining: the efficacy of the newer three-bin recycling stations (which had not yet completely replaced older bins in all campus buildings); in improving recycling behavior; whether recovery of recyclables has changed over time in buildings previously audited; and current levels and types of contamination in the recycling stream. Discussions were put on hold until the hiring of a full-time zero waste coordinator for campus (Daphne Hulse), which occurred in fall 2022, to ensure availability of dedicated staff to address waste audit findings. Ms. Hulse pursued and obtained funding from the U. of I. Student Sustainability Committee (SSC) to supplement available F&S funds and cover the costs of auditing eight buildings. The SSC grant was awarded in late spring 2023, and thus plans were made to conduct the audit in fall 2023.
Approach: Due to the size and volume of waste and recycling generated on campus, sorting all materials was not feasible. Thus, TAP and F&S used an activity zone approach for this waste audit. This involved selecting a representative set of buildings across campus based on classification of a building according to its main function and service. Waste audit data from these representative buildings was used to formulate recommendations for waste reduction through improvements to education & outreach, infrastructure, policy, programming, purchasing, research, and collaborating with externally controlled retail outlets in campus buildings. Those recommendations for improvement can then be applied to other buildings that fall within the same activity zone categorization. For this waste audit, activity zones and their respective buildings included:
- Academic: Business Instructional Facility (BIF) & Campus Instructional Facility (CIF)
- Academic + Laboratory: Roger Adams Laboratory (RAL) & Noyes Laboratory
- Multi-Activity: Illini Union & Activities & Recreation Center (ARC)
- Student Living: Lincoln Avenue Residence Halls & Allen Residence Hall
TAP conducted walkthroughs of study buildings to assess current conditions and infrastructure, discuss waste and recycling challenges and successes with facility managers and other key personnel, and determine the best method for sample collection during the waste audit. Samples from trash (landfill-bound) and recycling streams were collected from the selected buildings and hand-sorted by TAP staff and volunteers into pre-determined categories defined in conjunction with F&S waste management staff. Additionally, focus group sessions (one per activity zone) were held to obtain input from campus community members (including students, faculty, and staff). Stakeholder engagement helped to gauge expectations, barriers, and sources of confusion, as well as garner suggestions for ways to reduce waste and improve collection of recyclables for the buildings included in the study. An online form was made available for submission of written feedback from those unable to attend focus group sessions and to allow session participants to submit any additional comments and suggestions.
In addition to presenting methodologies and findings, it was decided to use the audit report to carefully document current waste and recycling management practices across campus and within the examined activity zones. This included detailed descriptions of bin liner color-coding standards and the rationale behind them, procedures at the campus Waste Transfer Station (WTS), process flow diagrams, and a list of processors and destinations for the major categories of collected recyclables. In this way the report could serve as an educational and communications tool, informing the campus community about proper procedures, combatting persistent misconceptions, raising awareness of waste reduction and management initiatives, and increasing transparency.
Results: Within all 1742.3 pounds of landfill-found trash sorted across activity zones in this audit, only 18.9 percent had no other fate than being sent to the landfill. The avoidable amount was estimated to be 34 percent. Nearly 23.1 percent of all landfill waste was paper towels, which could be composted, recycled through a special program, or replaced by electric hand dryers instead of being trashed.
Recyclable materials represented 12.9 percent of the waste stream, or 224.76 pounds of material. Another 17.1 percent might be recycled with expanded recycling programs. Finally, 17.1 percent was compostable. Within the total 1065.7 pounds of material from recycling streams across activity zones sorted in this audit, 81.4 percent was correctly recycled and 62.3 percent of the material sorted was cardboard. 18.6 percent is not currently accepted and is considered contamination. Liquids were the largest (by weight) material category contributing to contamination at 2.6 percent of materials sorted. Liquid contamination can ruin items even if they were placed in the correct recycling collection bins because paper and cardboard must be clean and dry to be eligible for baling and sale as commodities.
See the full report (linked below) for further details and results by activity zone.
The study uncovered a lack of awareness, confusion, and/or inconsistent compliance regarding the bin-liner color-coding standard even among building service workers, suggesting that improved communication and efforts to ease supply chain barriers could result in increased capture of recyclable materials. Observations during building walkthroughs and feedback compiled from stakeholder engagement indicated that greater consistency in collection bin style and signage, along with improvements in communication of proper waste management and recycling procedures to students, faculty, and staff could result in improved collection and reduced contamination of recyclable materials. TAP made 39 recommendations for waste reduction and improved management grouped into seven themes (education & outreach, infrastructure, policy, programming, purchasing, research, and retail). For the complete list of recommendations, see the full report.
Below are links to relevant publications, websites, and resources.
- University of Illinois Urbana-Champaign Campus Building Waste Characterization & Opportunity Assessment. This permalink record in the Illinois Digital Environment for Access to Learning and Scholarship includes the full report with appendices and a separate executive summary file.
- F&S: Campus Waste Characterization Results. Announcement of audit results on the U. of I. F&S website.
- F&S: Campus Building Waste Characterization & Opportunity Assessment. This section of the U. of I. F&S website serves as a resource for the campus community, and includes a summary of the audit findings, a table of recommendations by category, and links to the full report and executive summary documents. F&S contact information is also included for comments or questions on this study or other aspects of campus waste management and zero waste initiatives.
- ISTC Technical Assistance Program assists U. of I. campus with waste characterization study. ISTC blog post.
Other projects with this client: https://tap.istc.illinois.edu/category/university-of-illinois-urbana-champaign/