Alleviating carbon limitations in the early planetary base waste stream

Tiffany Diaz, W. Andrew Jackson, Audra Morse

Research output: Contribution to journalConference articlepeer-review


This research is based on the hypothesis that recycling biofilm can provide the required carbon to increase biological denitrification of the carbon limited early planetary base wastewater. Recycling biofilm may offer significant advantages including a reduction in solid waste from biological wastewater processors, increased N2 return to cabin air, a reduction in TDS loading to the RO system, and increased alkalinity to drive further nitrification. The results of the study indicate that denitrification rate did increase due to the addition of lysed biofilm derived from the nitrification reactor. However, there was a simultaneous large release of additional ammonium. Further work will be required to understand the magnitude of the ammonium release and overall benefits of the process.

Original languageEnglish
JournalSAE Technical Papers
StatePublished - 2006
Event36th International Conference on Environmental Systems, ICES 2006 - Norfolk, VA, United States
Duration: Jul 17 2006Jul 20 2006


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