Three Intermediate-Scale Aerobic Bioreactors were designed, fabricated, and operated. They utilized mixed microbial communities to bio-degrade plant residues. The continuously stirred tank reactors operated at a working volume of 8 L, and the average oxygen mass transfer coefficient, kLa, was 0.01 s-1. Mixing time was 35 s.An experiment using inedible wheat residues, a replenishment rate of 0.125 day-1, and a solids loading rate of 20 gdw day-1 yielded a 48% reduction in biomass. Bioreactor effluent was successfully used to regenerate a wheat hydroponic nutrient solution. Over 80% of available potassium, calcium, and other minerals were recovered and recycled in the 76-day wheat growth experiment.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Development of an Intermediate-Scale Aerobic Bioreactor to Regenerate Nutrients from Inedible Crop Residues


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    International Conference On Environmental Systems ; 1994



    Publication date :

    1994-06-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English






    Hydroponic Crop Production Using Recycled Nutrients from Inedible Crop Residues

    Mackowiak, Cheryl L. / Garland, Jay L. / Sager, John C. | SAE Technical Papers | 1993


    Hydroponic Crop Production using Recycled Nutrients from Inedible Crop Residues

    Garland, Jay L. / Mackowiak, Cheryl L. / Sager, John C. | NTRS | 1993