Advanced methods of recovery for space life support systems
- Paper ID
IAF-71-13
- author
- company
USSR Academy of Sciences
- country
U.S.S.R.
- year
1971
- abstract
To reclaim water from water containing wastes various physical and physico-chemical methods could be employed. The selection of the optimum method of water recovery is a very complicated task. It takes long-term medical and engineering experiments, such as the one-year Soviet experiment or the 23-, 60- and 90-day NASA sponsored tests in the USA to obtain truly reliable evaluation results for different water recovery assemblies. Water sources in spacecraft and space stations include water-containing wastes, such as atmospheric humidity condensate, urine, wash and personal hygiene water, higher plants transpiration on water, chlorella reactor condensate, higher and lower plants nutrient solution wastes, as well as certain technological solutions, such as electro-chemical generator (fuel cell) condensate, hydrogen peroxide decomposition condensate and carbon dioxide catalytic hydration condensate. The quantitative ratio and chemical composition of some of them are shown on Tables I and II. The data indicate the diversity of sources and complexity of chemical composition of moisture- containing wastes.