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为探索超临界水氧化法处理受控生态生命保障系统的废水和废物，研究了超临界水氧化技术去除尿液中有机物的可能性。用尿素水溶液作为尿液模拟物为对象，氧气作氧化剂，在连续流动的超临界水氧化实验装置中进行了实验，在４００～５５０℃和２４ＭＰａ～３０ＭＰａ的温度压力条件下，用含氮量作为指标，研究各因素对有机物去除效果的影响。研究结果表明，超临界水氧化法对尿液中主要有机物尿素的去除，在温度４００℃以下，去除率低于１０％；在５５０℃以上，反应时间超过２ｍｉｎ时，可将９５％以上的含氮有机物去除。增加反应温度、压力和反应时间，都可以明显地增大有机物的去除率。
In order to explore the supercritical water oxidation treatment of wastewater and waste of controlled ecological life support system, the possibility of removing organic compounds in urine by supercritical water oxidation technology was studied. Using urea aqueous solution as a urine simulant and oxygen as an oxidant, experiments were carried out in a continuous flowing supercritical water oxidation experiment apparatus. Under the temperature and pressure conditions of 400-550 ° C. and 24-30 MPa, nitrogen content was taken as Indicators to study the impact of various factors on the removal of organic matter. The results showed that the supercritical water oxidation of urea in the main removal of organic matter at a temperature below 400 ℃, the removal rate of less than 10%; at more than 550 ℃, the reaction time exceeds 2min, 95% can be more than containing Nitrogen removal. Increase the reaction temperature, pressure and reaction time, can significantly increase the removal of organic matter.