航天推进剂废水超临界水氧化反应法处理研究  

TREATMENT OF MISSILE PROPELLANT WASTEWATER BY SUPERCRITICAL WATER OXIDATION PROCESS

作　　者：张丽[1] 张召恩[1] 刘建东 韩恩厚[1] 柯伟[1] 

机构地区：[1]中国科学院金属研究所腐蚀与防护国家重点实验室,辽宁沈阳110016 [2]青海黎明化工有限责任公司,青海西宁810103

出　　处：《水处理技术》2004年第6期365-368,共4页Technology of Water Treatment

基　　金：国家自然科学基金(59971051)国家重点基础研究专项经费(G19990650)资助

摘　　要：采用新兴的绿色环保技术—超临界水氧化反应法，对含偏二甲肼的航天推进剂废水进行了处理研究。试验结果表明，采用小型的管道式连续SCWO反应系统能够迅速将该类推进剂废水中的毒害戍分—偏二甲肼彻底分解为无害的CO_2和N_2。反应温度和反应停留时间是影响偏二甲肼去除率的主要因素，当反应温度超过500℃，停留时间达到95s时，偏二甲肼的COD去除率大于99.9％，完全达到了国家航天推进剂水污染物排放标准的要求。A novel technique for environmental protection-Supercritical Water Oxidation (SCWO)was investigated to dispose the missile propellant wastewater. Unsymmetrical dimethyl-hydrazine(UDMH) in the wastewater can be quickly and thoroughly decomposed into harmless carbon dioxide and nitrogen in a SCWO tube continuous reaction system. The dominant factors affecting COD removal efficiency are reaction temperature and residence time. The COD removal efficiency is above 99.9 percent when the temperature is higher than 500℃ and residence time under reaction is up to 95 second,the COD value of the treated wastewater meets the national standards of missile propellant aquatic pollutant discharging.

关 键 词：废水 偏二甲肼 超临界水氧化 COD去除率 水污染物 SCWO 排放标准 反应温度 停留时间 推进剂 

分 类 号：P35[天文地球—空间物理学] X703[天文地球—地球物理学]