超临界水氧化处理TNT炸药废水的研究  

Treatment of TNT Wastewater by Supercritical Water Oxidation

作　　者：常双君[1] 刘玉存[1] 

机构地区：[1]中北大学化工与环境学院,山西太原030051

出　　处：《含能材料》2007年第3期285-288,共4页Chinese Journal of Energetic Materials

基　　金：教育部科学技术研究重点项目(204020)

摘　　要：采用超临界水氧化技术处理TNT炸药生产废水,结果表明:在选用氧气为氧化剂的条件下,采用超临界水氧化技术可以有效降解TNT炸药废水中的硝基类有机物。反应温度、压力、时间和过氧量是影响TNT废水COD(chemical oxygen demand)去除率的主要因素,其中反应温度的提高对COD去除率的影响最为显著。在反应温度为550℃、压力为24MPa、反应停留时间为120s、过氧量为300%的条件下,COD去除率可以达到99.80%以上。The treatment of TNT wastewater were carried out by supercritical water oxidation （SCWO）. The results show that SCWO can efficiently degrade organics in TNT wastewater with O2 oxidant. Reaction temperature,pressure, residence time and oxygen excess are the main influence factors in removing GOD （chemical oxygen demand）of TNT wastewater. The COD removal efficiency can be notably improved as reaction temperature increases. With the temperature 550 ℃ ,the pressure 24. MPa, the residence time 120 s, and oxygen excess 300% , the COD removal rate is over 99.80%.

关 键 词：环境化学 超临界水氧化 TNT 废水处理 

分 类 号：X789[环境科学与工程—环境工程]