Loading...
Please wait, while we are loading the content...
Similar Documents
Wet-oxidation waste management system for celss
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Ohya, H. Takahashi, Y. |
| Copyright Year | 1986 |
| Description | A wet oxidation system will be useful in the Closed Ecological Life Support System (CELSS) as a facility to treat organic wastes and to redistribute inorganic compounds and elements. However at rather higher temperatures needed in this reaction, for instance, at 260 deg C, only 80% of organic in a raw material can be oxidized, and 20% of it will remain in the liquid mainly as acetic acid, which is virtually noncombustible. Furthermore, nitrogen is transformed to ammonium ions which normally cannot be absorbed by plants. To resolve these problems, it becomes necessary to use catalysts. Noble metals such as Ru, Rh and so on have proved to be partially effective as these catalysts. That is, oxidation does not occur completely, and the unexpected denitrification, instead of the expected nitrification, occurs. So, it is essential to develop the catalysts which are able to realize the complete oxidation and the nitrification. |
| File Size | 393654 |
| Page Count | 8 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19860010442 |
| Archival Resource Key | ark:/13960/t7wm65g32 |
| Language | English |
| Publisher Date | 1986-01-01 |
| Access Restriction | Open |
| Subject Keyword | Inorganic And Physical Chemistry Inorganic Compounds Ruthenium Rhodium Catalysts Waste Treatment Closed Ecological Systems Ions Oxidation Nitrogen Carbon Space Stations Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
