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.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Anaerobic Digestion for Reduction and Stabilization of Organic Solid Waste During Space Missions: Systems Analysis


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    International Conference On Environmental Systems ; 2002



    Publication date :

    2002-07-15




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Anaerobic Digestion for Reduction and Stabilization of Organic Solid Wastes During Space Missions: Laboratory Studies

    Teixeira, Art / Welt, Bruce / Chynoweth, David et al. | SAE Technical Papers | 2002


    Fundamental Study of Solid Waste Size Reduction as Applied to Crewed Space Missions

    Savage, G. M. / Diaz, L. F. / SAE | British Library Conference Proceedings | 2001


    Fundamental Study of Solid Waste Size Reduction as Applied to Crewed Space Missions

    Savage, George M. / Diaz, Luis F. | SAE Technical Papers | 2001


    Energy-Efficient Closed Loop Heat Pump Dryer for Solid Waste Stabilization on Long Duration Space Missions

    Arquiza, J. M. R. Apollo / Hunter, Jean B. / Morrow, Robert et al. | SAE Technical Papers | 2006


    Solid Waste Densification in the Context of Space Missions

    Savage, G. M. / Diaz, L. F. / SAE | British Library Conference Proceedings | 2003