A bioreactor system for the nitrogen loop in a controlled ecological life support system

Details A bioreactor system for the nitrogen loop in a controlled ecological life support system A bioreactor system for the nitrogen loop in a controlled ecological life support system

Jan 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996adspr..18..289s&link_type=abstract

Advances in Space Research, Volume 18, Issue 1-2, p. 289-292.

Mathematics

Logic

Scientific paper

As space missions become longer in duration, the need to recycle waste into useful compounds rises dramatically. This problem can be addressed by the development of Controlled Ecological Life Support Systems (CELSS) (i.e., Engineered Closed/ Controlled Eco-Systems (ECCES)), consisting of human and plant modules. One of the waste streams leaving the human module is urine. In addition to the reclamation of water from urine, recovery of the nitrogen is important because it is an esssential nutrient for the plant module. A 3-step biological process for the recycling of nitrogenous waste (urea) is proposed. A packed-bed bioreactor system for this purpose was modeled, and the issues of reaction step segregation, reactor type and volume, support particle size, and pressure drop were addressed. Based on minimization of volume, a bioreactor system consisting of a plug flow immobilized urease reactor, a completely mixed flow immobilized cell reactor to convert ammonia to nitrite, and a plug flow immobilized cell reactor to produce nitrate from nitrite is recommended. It is apparent that this 3-step bioprocess meets the requirements for space applications.

Affiliated with

Also associated with

No associations

Rating

A bioreactor system for the nitrogen loop in a controlled ecological life support system does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with A bioreactor system for the nitrogen loop in a controlled ecological life support system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A bioreactor system for the nitrogen loop in a controlled ecological life support system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-968062