Subcritical and supercritical water oxidation of CELSS model wastes.

摘要: Abstract Controlled-Ecological-Life-Support-System (CELSS) model wastes were wet-oxidized at temperatures from 250 to 500°C, i.e., below and above the critical point of water (374°C 218 kg/cm2 or 21.4 MPa). A solution ammonium hydroxide acetic acid a slurry human urine, feces, wipes used as wastes. Almost all organic matter in was oxidized temperature range 400 conditions for water. In contrast, only small portion subcritical conditions. Although extent nitrogen oxidation nitrous oxide (N2O) and/or gas (N2) increased with reaction temperature, most retained ammonia near 400°C. This important finding suggests that waste feed can be during low supercritical subsequently source plants CELSS while same time is almost completely carbon dioxide It also found this study Hastelloy C-276 alloy reactor corroded oxidation. The rate corrosion lower than