Recycling Plant Nutrients at NASA's KSC-CELSS Breadboard Project: Biological Performance of the Breadboard-Scale Aerobic Bioreactor During Two Runs

Paper #:
  • 951708

Published:
  • 1995-07-01
Citation:
Strayer, R. and Cook, K., "Recycling Plant Nutrients at NASA's KSC-CELSS Breadboard Project: Biological Performance of the Breadboard-Scale Aerobic Bioreactor During Two Runs," SAE Technical Paper 951708, 1995, https://doi.org/10.4271/951708.
Pages:
8
Abstract:
Bioregenerative processes for the replenishment of plant nutrients in CELSS are being evaluated. Continuous operation of a breadboard-scale aerobic bioreactor (breadboard-scale aerobic bioreactor, 120 L working volume) has been used successfully to resupply partially the nutrients required for hydroponically grown wheat (4 m2 growing area, 57 days bioreactor operation) and potato (8 m2 growing area, 310 days bioreactor operation). Bioreactor performance, measured by reduction in volatile solids (27 to 37% wheat, ca. 51% potato) and mineralization of biomass C (24 to 37% wheat, 35 to 61% potato), depended on process parameters such as retention time.
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