Contaminant Distribution and Accumulation in Water Recycle Systems 921360
Water reuse is essential for long duration space missions. However, water recycle systems also provide a habitat for microorganisms and allow accumulation of chemical compounds which may be acutely or chronically toxic to mission crew members. Contaminant fate and accumulation in closed-loop water recycle systems is being investigated at the University of Colorado and Martin Marietta as part of the activities of the Center for Space Environmental Health (CSEH), a NASA Specialized Center of Research and Training (NSCORT). The water contaminant distribution research uses a scaled-down physical model of a water (shower, laundry, urine and/or condensate) recycle system to analyze for and model four “indicator” contaminants: viruses and bacteria, nitrogen species, and selected organic and inorganic compounds. The water recycle test bed is comprised of five or more individual water treatment processes linked in a closed loop, and spiked with chemical and biological contaminants. A “systems” approach has been used to define experiments and data which can be used to characterize the long-term, overall performance of the test bed.
The water contaminant distribution research at CSEH will augment the shorter-term investigations and individual process research being conducted by NASA at the Ames, Johnson, and Marshall Space Flight Centers.
Citation: Silverstein, J., Schulz, J., Barkley, R., Brion, G. et al., "Contaminant Distribution and Accumulation in Water Recycle Systems," SAE Technical Paper 921360, 1992, https://doi.org/10.4271/921360. Download Citation
Author(s):
JoAnn Silverstein, Jon R. Schulz, Robert Barkley, Gail M. Brion, Charles Hurst
Affiliated:
University of Colorado
Pages: 10
Event:
International Conference On Environmental Systems
ISSN:
0148-7191
e-ISSN:
2688-3627
Related Topics:
Water reclamation
Water treatment
Inorganic chemicals
Scale models
Chemicals
Research and development
Water
Logistics
Fluids and secretions
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