Abstract The filtrate of non-catalytical wet-oxidized sewage sludge was wet-oxidized again at 290 °C and 300 °C with a RuRh catalyst. At each temperature, repeated batch tests were carried out. Both oxidation and denitrification efficiency of organic matter in the raw material were studied. In the 16 times batch tests at 300 °C, high and stable oxidation occurred. 98.0% of organic carbon in the raw material was oxidized and 98.3% of organic nitrogen was denitrified. At 290 °C, though high and stable denitrification occurred, oxidation did not occur highly and stably. A catalytic wet-oxidation system studied at 300 °C will be useful as a waste management system for a human life support system, where almost all food is resupplied from the earth. This system can prevent organic waste accumulation in the life support system.
Catalytic wet-oxidation of human wastes produced in space: The effects of temperature elevation
Advances in Space Research ; 12 , 5 ; 53-56
1991-01-01
4 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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