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Risk Mitigation Water Quality Monitor
ISSN: 0148-7191, e-ISSN: 2688-3627
Published July 01, 1997 by SAE International in United States
Annotation ability available
On the International Space Station (ISS), atmospheric humidity condensate and other waste waters will be recycled and treated to produce potable water for use by the crews. Space station requirements include an on-orbit capability for real-time monitoring of key water quality parameters, such as total organic carbon, total inorganic carbon, total carbon, pH, and conductivity, to ensure that crew health is protected for consumption of reclaimed water. The Crew Health Care System for ISS includes a total organic carbon (TOC) analyzer that is currently being designed to meet this requirement. As part of the effort, a spacecraft TOC analyzer was developed to demonstrate the technology in microgravity and mitigate risks associated with its use on station. This analyzer was successfully tested on Shuttle during the STS-81 mission as a risk mitigation experiment. A total of six ground-prepared test samples and two Mir potable water samples were analyzed in flight during the 10-day mission. Duplicate test samples were analyzed on the ground concurrent with on-orbit analyses. Archived Mir water samples were returned and analyzed for comparison to in-flight results. Analytical performance of the analyzer during STS-81 was very good. All test sample results except for a few pH values, were within the prescribed analytical acceptance limits for the experiment. The on-orbit and postflight analytical results for Mir water samples were also in good agreement. Postflight inspection of the analyzer revealed that some design changes would be needed before additional flight testing.
CitationStraub, J., Shimamoto, S., Schultz, J., Davenport, R. et al., "Risk Mitigation Water Quality Monitor," SAE Technical Paper 972463, 1997, https://doi.org/10.4271/972463.
- Godec, R. P., Kosenka, P., and Hutte, R. S., New Total Organic Carbon Analyzer, SAE Paper #901354, 20th International Conference on Environmental Systems, Williamsburg, VA, July 9-12, 1990.
- Godec, R., Kosenka, P., Smith, B., Hutte, R., Webb, J., and Sauer, R., Total Organic Carbon Analyzer, SAE Paper #911434, 21st International Conference on Environmental Systems, San Francisco, CA, July 15-18, 1991.
- Godec, R., O'Neill, K., and Hutte, R., New Technology of TOC Analysis in Water, Ultrapure Water, Vol. 9(10), pp. 17-22, December 1992.
- Godec, R. D., Kosenka, P. K., and Hutte, R. S., Method and Apparatus for the Determination of Dissolved Carbon in Water, U.S. Patent No. 5,132,094, July 21, 1992.
- Davenport, R. J., Godec, R. D., Petropavlovskikh, V. A., Mord, A. J., Schultz, J. R., Straub, J. E,. and Sauer, R. L., A Total Organic Carbon Analyzer for Space Potable Water Systems, SAE Paper #961570, 26th International Conference on Environmental Systems, Monterey, CA, July 8-11, 1996.
- Taylor, J. K., Quality Assurance of Chemical Measurements, Lewis Publishers, Inc., 5th printing, 1989.
- Sauer, R. L., Schultz, J. R., Johnson, S. M, Pierre, L. M., Sinyak, Ju. E., and Skuratov, V. M., Collection and Chemical Analysis of Reclaimed Water and Condensate from the Mir Space Station, SAE Paper #961569, 26th International Conference on Environmental Systems, Monterey, CA, July 8-11, 1996.