Development and Integration of a Breadboard-Scale Aerobic Bioreactor to Regenerate Nutrients from Inedible Crop Residues

Paper #:
  • 951498

Published:
  • 1995-07-01
Citation:
Finger, B. and Alazraki, M., "Development and Integration of a Breadboard-Scale Aerobic Bioreactor to Regenerate Nutrients from Inedible Crop Residues," SAE Technical Paper 951498, 1995, https://doi.org/10.4271/951498.
Pages:
8
Abstract:
A Breadboard-Scale Aerobic Bioreactor (B-SAB) has been designed and integrated with the Kennedy Space Center's Biomass Production Chamber (BPC). The bioreactor utilizes a mixed microbial community to biodegrade inedible plant residues, a component of a Controlled Ecological Life Support System (CELSS) waste-stream. The continuously stirred tank reactor (120 L working volume) supports nutrient recycling and secondary food production experiments, and can process an influent with a solids loading as high as 50 g L-1. The volumetric oxygen mass transfer coefficient, kLa, is 0.013 s-1. Nutrient solution for BPC lettuce and wheat crops has been produced. Currently, B-SAB is supplying 80% of the nutrients for 10 m2 of potato plants in a continuous production experiment.
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