404: Recovery of Waste Material

Members of Team 404 left to right: Javier Mendez, Alexa Saade, Molly Sonn, Adriana Szurnicki

The City of Tallahassee Waste Management Department disposes of an annual average of 980 tons of grit waste from the Thomas P. Smith Water Reclamation Facility and 1,740 tons of zero-liquid-discharge filter-pressed solids from the Sam O. Purdom Generating Station. Recent state regulations and moisture content limitations restrict continued landfilling of these materials, necessitating alternative solutions.

We performed extensive research on the physical characteristics and regulatory constraints of these waste streams to identify sustainable reuse pathways. Based on this analysis, we developed a feasibility and recommendation report for the City of Tallahassee that outlined potential reuse and commercialization opportunities aimed at reducing disposal costs and diverting material from landfills.

Our project equips the City of Tallahassee with actionable recommendations to reduce landfill dependency, lower long-term disposal costs, and improve operational resilience against tightening regulatory constraints.

Javier Mendez, Alexa Saade, Molly Sonn, Adriana Szurnicki
Robert Markum, Ph.D., Ernesto Garcia, Ph.D., Michael Elwardany, Ph.D., Youneng Tang, Ph.D., Naser Tibi, Ph.D. and Chukwunike Okwuenu
City of Tallahassee
Spring