This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Recent Developments in Water Quality Monitoring for Space Station Reclaimed Wastewaters
Annotation ability available
Sector:
Language:
English
Abstract
This paper discusses the recent developments in water quality monitoring for Space Station reclaimed wastewaters. A preprototype unit that contains an ultraviolet absorbance organic carbon monitor integrated with pH and conductivity sensors is presented. The preprototype has provisions for automated operation and is a reagentless flow-through system without any gas/liquid interfaces. The organic carbon monitor detects by ultraviolet absorbance the organic impurities in reclaimed wastewater which may be correlated to the organic carbon content of the water. A comparison of the preprototype organic carbon detection values with actual total organic carbon measurements is presented. The electrolyte double junction concept for the pH sensor and fixed electrodes for both the pH and conductivity sensors are discussed. In addition, the development of a reagentless organic carbon analyzer that incorporates ultraviolet oxidation and infrared detection is presented. Detection sensitivities, hardware development, and operation are included.
Topic
Citation
Small, J., Verostko, C., Linton, A., and Burchett, R., "Recent Developments in Water Quality Monitoring for Space Station Reclaimed Wastewaters," SAE Technical Paper 871447, 1987, https://doi.org/10.4271/871447.Also In
References
- Ejzak E.M. Price D.F. 2 “Practical Analysis Systems for Recovered Spacecraft Water,” IAWPRC Workshop on Instrumentation and Control of Water and Wastewater Treatment and Transport Systems
- Safranko J.W. Schuler J.D. Small J.W. 1983 “A Low Temperature Micro-Processor Controlled TOC Analyzer,” American Laboratory 56 65
- Small J.W. 1980 “New Advances in TOC Analysis,” Pollution Eng. 12 9 63 65
- Gouiden P.D. Brooksbank P. Anal. Chem. 47 1943 1975
- Soier V.G. Semenor A. D. Gidrokim, Materially 58 111 1971
- Small R.A. Lowry T.W. Ejzak E.M. May 1986 “Oxidation and Detection Techniques in TOC Analysis,” I” International Laboratory 56 67