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Feasibility Study of Food Waste Co-Digestion at U.S. Army Installations
Citation:
Cosper, S., D. Gilbert, I. MacAllister, M. Rahman, A. Urban, G. Rodriguez, J. Ricketts, S. Rock, AND Alex Lan. Feasibility Study of Food Waste Co-Digestion at U.S. Army Installations. US Army Corps of Engineers, Washington, DC, 2017. https://doi.org/10.21079/11681/21634
Impact/Purpose:
Provide recommendations and information necessary to fort operations of the US Army on potential WRRF operations.
Description:
Net Zero is a comprehensive approach to preserve natural resources by focusing on energy, water, and waste. Fort Huachuca, Arizona, is a strong advocate and participant in the Army Net Zero program. The Fort has installed energy saving and renewable energy generating systems, and water conserving and recycling equipment. They are now considering rebuilding their sewage treatment system to revive the mothballed anaerobic digesters (AD) and retrofitting the system to accept food waste and other organics. The Fort has three main objectives in considering rebuilding their sewage system or Water Resource Recovery Facility (WRRF): 1. Base security. The WRRF needs to continues functioning during power outages. 2. Achieve further Net Zero gains in energy, water, and waste. 3. Save money. Based on the study calculations and modeling, the team recommends restarting the AD system at the WRRF with waste activated sludge and the additional feedstock consisting of wasted food, manure, and FOG from the Fort Dining Facilities. From this study, ERDC-CERL and EPA team members believe that co-digestion of food and biosolids would be a win-win scenario for Fort H. 1. WRRF would become energy independent and operate during power outages. 2. Base would move toward zero waste and add another source of renewable energy. 3. The current annual cost of $400,000 for energy and disposing of biosolids becomes savings of $125 – 175,000.
URLs/Downloads:
DOI: Feasibility Study of Food Waste Co-Digestion at U.S. Army Installations
https://erdc-library.erdc.dren.mil/xmlui/handle/11681/21634