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Modeling a Biological Closed Loop Water Recycling System for Prolonged Manned Space Flight
Technical Paper
2004-01-2511
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
For prolonged manned spaceflight, recycling of wastewater is critical to minimize payload costs. We have constructed a pilot-scale, closed-loop water recycling system (CLWRS). Due to slow process dynamics, evaluation of multiple experimental scenarios is very time-consuming. To accelerate evaluation, we have developed mathematical models of the individual reactors, as well as a process model of the pilot plant, which combines nitrification, denitrification, recycle, and degassing steps. The simulation accurately reproduces the 35% total nitrogen (TN) reduction observed experimentally at a 20/1 recycle ratio. Both experiments and simulations indicate that biological CLWRS have significant potential for long-duration manned space flight.
Authors
Citation
Xia, S., Carey, A., Wiesner, T., Morse, A. et al., "Modeling a Biological Closed Loop Water Recycling System for Prolonged Manned Space Flight," SAE Technical Paper 2004-01-2511, 2004, https://doi.org/10.4271/2004-01-2511.Also In
References
- Ilias, S. Schimmel. K. A. Membrane Bioreactor Model for Removal of Organics from Waste-Water Journal of the Air & Waste Management Association 45 (8) 615 620 1995
- Liu, Y. Estimating minimum fixed biomass concentration and active thickness of nitrifying biofilm Journal of Environmental Engineering-Asce. 123 (2) 198 202 1997
- Shuler, M. L. Kargi F. Bioprocess Engineering: Basic Concepts Prentice Hall PTR Upper Saddle River, NJ 2nd Ed 2002
- Tanyolac, A. Beyenal. H. Effectiveness factor for a hollow-fiber biofilm reactor at maximum substrate consumption Chemical Engineering Journal and the Biochemical Engineering Journal. 62 (2) 149 154 1996
- Tchobanoglous, G. Burton F. L. Wastewater Engineering: Treatment, Disposal, Reuse. McGraw-Hill New York 3rd Ed. 1991