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Anaerobic Digestion for Reduction and Stabilization of Organic Solid Waste During Space Missions: Systems Analysis
Technical Paper
2002-01-2521
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
High Solids Leachbed Anaerobic Digestion (HSLAD) is a biological waste treatment system that has been successfully demonstrated for solid waste treatment in terrestrial applications. The process involves a solid phase leach bed fermentation, employing leachate recycle between new and mature reactors for inoculation, wetting, and removal of volatile organic acids during startup. HSLAD also offers a potential option for treatment of biodegradable wastes on long-duration space missions and for permanent planetary bases. This process would produce 1.5 kg of methane, 4.1 kg of carbon dioxide and 1.9 kg of compost from 7.5 kg of biodegradable solid wastes generated daily from a crew of six. HSLAD can operate at low temperature and pressure and has the potential for being a net energy producer. A detailed analysis of this process was conducted to design the system size required for a space mission with a 6-person crew. The mass, energy and water balance of the process and an equivalent system mass (ESM) analyses are presented.
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Authors
- Qiyong Xu - Environmental Engineering &. Science University of Florida
- Tim Townsend - Environmental Engineering &. Science University of Florida
- David Chynoweth - Agricultural and Biological. Engineering University of Florida
- Patrick Haley - Agricultural and Biological. Engineering University of Florida
- John Owens - Agricultural and Biological. Engineering University of Florida
- Elana Rich - Agricultural and Biological. Engineering University of Florida
- Sabrina Maxwell
- Hong-Lim Choi
Citation
Xu, Q., Townsend, T., Chynoweth, D., Haley, P. et al., "Anaerobic Digestion for Reduction and Stabilization of Organic Solid Waste During Space Missions: Systems Analysis," SAE Technical Paper 2002-01-2521, 2002, https://doi.org/10.4271/2002-01-2521.Also In
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