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Water Recycling System for CELSS Environment in Space
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English
Abstract
System configurations of water recycling for space use have been continued through theoretical and experimental studies. The water recycling system plays a central role in a Closed Ecological Life Support System (CELSS) which offers necessary environment and life styles in closed environment such as space stations, lunar bases, etc.. Membrane technology is a possible candidate for purifying waste water produced by crew use facility, plant cultivation facility, etc. In considerations of the system compactness realizing energy saving, membrane distillation has been revealed to be a suitable purification process. Ground experiments has been performed using membrane filtration processes and membrane distillation process. Thermopervaporation technology with hydrophobic membrane is utilized in the distillation process. The energy saving is achieved by thermal return of condensation energy.
The candidate water recycling system can be composed of membrane distillation as a primary process, realizing a system efficiency. The degassing process is required to remove gas contained in purified water. In the μ gravity environment, absorption type thermopervaporation distillation is suitable. Under the gravity such as on the moon, the ordinary construction similar to a ground-based one can be applicable, being convenient for the gas separation.
Authors
Citation
Ashida, A., Mitani, K., Kurokawa, H., Sawa, T. et al., "Water Recycling System for CELSS Environment in Space," SAE Technical Paper 901208, 1990, https://doi.org/10.4271/901208.Also In
References
- CELSS EXPERIMENT CONCEPTS OF SPACE STATION MISSIONS CELSS Experiment Concept Study Group April 16 1984
- Nitta K. Ashida A. Mitani K. Ebara K. Yamada A. Water Recycling System Using Thermopervaporation Method CELSS '85 Workshop, NASA TM 88215 January 1986 201
- Aptel P. Challard N. Cunny J. J. Memb. Sci. 1 271 1976
- Ashida A. Mitani K. Ebara K. Kurokawa H. Otsubo K. Nitta K. et al Vapor Compression Distiller and Membrane Technology for Water Revitation Adv.Space Res. 7 4 (4)73 (4)76 1987
- Mitani K. Ashida A. Ebara K. Nitta K. Water Recycling for Space Station 15th ISTS 1361 1364 1986
- Nitta K. Ohtsubo K. Oguchi M. Tanemura T. Mitani K. Hamano N. Ashida A. Ebara K. Kurokawa H. A Ground Experimental Model of Water Distillation System by Thermopervaporation for Space 16th ISTS 1709 1712 1988
- Ebara K. Kurokawa H. Matsuzaki H. Takahashi S. Yoda H. Develpment of a New Water Purification System Using a Membrane Distillation Process 7th annual Semiconductor Pure Water Conference 62 77 1988