[Investigation on the elimination of organic substances in urine by supercritical water oxidation].
Application of Supercritical Water Oxidation (SCWO) to processing of human metabolic wastes of Controlled Ecological Life Support System was studied for organic substance elimination in urine and recover potable water. The SCWO of simulated urine was investigated with oxygen as the oxidant at 400-500 degrees C and 24-30 MPa in a continuous flow reactor. The organic substance elimination efficiency was obviously effected by temperature, pressure and reaction time. It is lower than 10% at 400 degrees C, but more than 95% at 550 degrees C with reaction time of 2 min.
Wang
T
T
Department of Chemical Engineering, Tsinghua University, Beijing, China.
Yang
M
M
Xiang
B
B
Shen
Z
Z
D018504:Ecological Systems, Closed; D004867:Equipment Design; D006801:Humans; D008021:Life Support Systems / Q000295:instrumentation*; D010084:Oxidation-Reduction; D013696:Temperature; D014556:Urine; D018505:Waste Management / Q000379:methods*; D018508:Water Purification / Q000295:instrumentation / Q000379:methods*