Development of an Intermediate-Scale Aerobic Bioreactor to Regenerate Nutrients from Inedible Crop Residues 941501
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.
Citation: Finger, B. and Strayer, R., "Development of an Intermediate-Scale Aerobic Bioreactor to Regenerate Nutrients from Inedible Crop Residues," SAE Technical Paper 941501, 1994, https://doi.org/10.4271/941501. Download Citation
Author(s):
Barry W. Finger, Richard F. Strayer
Affiliated:
Bionetics Corp.
Pages: 11
Event:
International Conference On Environmental Systems
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
SAE 1994 Transactions: Journal of Aerospace-V103-1
Related Topics:
Biological sciences
Potassium
Calcium
Oxygen
Recycling
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