Technologies for the recycling of water are a primary goal of NASA’s advanced life support programs. Biological processes have been identified as an attractive method for wastewater processing. A fundamental new bioreactor based on a traditional activated sludge process is demonstrated that treats hygiene wastewater using magnetic iron oxide particles agglomerated with microbial cells. In this bioreactor, microbes are suspended in magnetic flocs in a wastewater medium. Instead of a traditional gravity separator used in activated sludge operations, a magnetic separator removes the microbial flocs from the outlet stream. The reactor separation operates continuously, independent of gravitational influences. The reactor has been able to simultaneously remove 98% of high levels of both nitrogenous and organic carbon impurities from the wastewater as well as achieve acceptably low levels of total suspended solids. This reactor provides size and weight advantages and potentially can eliminate many difficulties of using bioreactors in regenerative life support systems in space.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    A High Efficiency Magnetic Activated Sludge Reactor for Wastewater Processing


    Additional title:

    Sae Technical Papers



    Conference:

    International Conference On Environmental Systems ; 1999



    Publication date :

    1999-07-12




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    A High Efficiency Magnetic Activated Sludge Reactor for Wastewater Processing

    Archer, S. D. / Hitchens, G. D. / Jabs, H. S. et al. | British Library Conference Proceedings | 1999


    Settling characteristics of activated sludge at Bromma wastewater treatment plant

    Goehle, F. / Bjoerlenius, B. | British Library Online Contents | 1996


    Development and Application of Activated Sludge Mathematical Models for Wastewater Treatment Process

    Yu, G.-p. / Yuan, M.-z. / Wang, H. | British Library Online Contents | 2006



    Sludge Dredging Revives Wastewater Treatment Lagoons

    British Library Online Contents | 1996