This content is not included in your SAE MOBILUS subscription, or you are not logged in.
Monitoring Performance of a Denitrifying Reactor Designed for Shuttle Testing
ISSN: 0148-7191, e-ISSN: 2688-3627
Published July 07, 2003 by SAE International in United States
Annotation ability available
Ground studies are continuing at Kennedy Space Center to define the performance of the Immobilized Microbe Microgravity Water Processing System (IMMWPS), a denitrifying, fixed-bed reactor designed for shuttle flight-testing. The goal of these experiments was to define organic compounds that could be used as indicators of changes in reactor performance as to the removal of surfactant and to evaluate additional flight and sampling protocols. While changes in the breakthrough concentration of surfactant would provide insight into performance changes during the flight experiment, this breakthrough of surfactant in the flight system is undesirable due to operational problems resulting from foaming of the undegraded surfactant. By monitoring a degradation intermediate instead of the surfactant in the effluent, this problem could be avoided while monitoring any effects of microgravity on bioreactor performance during space flight. Results indicate that methyl taurine levels in the effluent may be used to study the effects of various flight protocols and conditions on reactor performance. Experiments to evaluate in flight sample preservation were also performed.
CitationHummerick, M., Levine, L., Bauer, J., and Garland, J., "Monitoring Performance of a Denitrifying Reactor Designed for Shuttle Testing," SAE Technical Paper 2003-01-2561, 2003, https://doi.org/10.4271/2003-01-2561.
- Crew and Thermal systems Division, 1998. System Specification for the Immobilized Microbe Microgravity Water Processing System (IMMWPS) Flight Experiment JSC document 39085
- Levine L.H. Kagie H.K. Garland J.L. 2003 Biodegradation Pathway of an Anionic Surfactant (Igepon TC-42) during Recycling Waste Water through Plant Hydroponics for Advanced Life Support During Long-Duration Space Missions Adv. Space Res. 31 1 249 253
- Strayer R.F. Alazraki M.P. Judkins J. Adams J. Garland J.L. Hsu V. Development and Testing of Inocula for Biodegradation of Igepon under Denitrifying Conditions SAE technical paper series 99ES-220
- Hummerick M.P. Judkins J.E. Garland J.L. Levine L.H. 2001 Microbial Requirements for Optimal Surfactant Degradation in a Denitrifying, Fixed Bed Bioreactor SAE paper 2001-01-2206 31st International Conference on Environmental Systems Orlando, FL July 15-18
- Garland J.L. Hummerick M.P. Levine L.H. Krumins V. 2002 The Effect of Microbial Growth on Feed Stability and Delivery in a denitrifying Fixed Bed Reactor Designed for Space Flight to Recycle Graywater International Conference on Environmental Systems San Antonio, TX
- Atlas R.M. Parks L.C. 1997 Handbook of Microbiological Media CRC Press New York P318
- Levine L.H. Judkins J.E. Garland J.L. 2000 Determination of anionic surfactants during wastewater recycling process by ion pair chromatography with suppressed conductivity detection Journal of Chromatography 874 207 215
- Technical support package for A Technique for Injecting Ag + Ions as Biocide into H 2 O
- Hobbe J.E. Daley R.J. Jaspers S. 1977 Use of Nucleopore filters for counting bacteria by fluorescence microscopy Appl. Environ. Microbiol 33 1225 1228
- APHA 1998 Standard Methods for the examination of Water and Wastewater 5310-B American Public Health Association Washington, DC