超临界水氧化法处理偶氮染料生产废水的实验研究  

Study on treatment of azo - dyes industrial waste water by Supercritical Water Oxidation

作　　者：马承愚[1] 姜安玺[1] 彭英利[2] 杨云升 

机构地区：[1]哈尔滨工业大学市政环境工程学院,黑龙江哈尔滨150090 [2]石家庄开发区奇力科技有限公司,河北石家庄050035 [3]河北省环境科学研究院,河北石家庄050051

出　　处：《黑龙江大学自然科学学报》2005年第4期525-527,532,共4页Journal of Natural Science of Heilongjiang University

基　　金：河北省科技攻关项目(2002214)

摘　　要：利用2．2L+1．7L超临界水氧化中试装置对偶氮染料生产废水处理进行实验,结果表明:温度为520℃、压力为28MPA,氧化反应时间为180S和240S时,其COD去除率分别达到 98．37％和99．09％;后者条件下的色度去除率为99．67％,使高浓度难降解有机物得到有效处理, 脱色效果好,处理后的排水达到国家规定的排放标准,同时发现了超临界水氧化反应的放热现象。The treatment of azo - dyes industrial wastewater was investigated by using 2. 2L ＋ 1.7L Supercritical Water Oxidation pilot - plant - scale reactors. The result shows that COD removal rate can achieve 98.37% under the pressure of 28 MPa at reaction temperature of 520℃ for 180 seconds. When reaction time is 240 seconds, then COD removal rate and decolorization efficiency can reach 99.09% and 99.7% , respectively. This method is effective to purify and decolor the high concentration organic wastewater. Effluent water quality can meet the national wastewater- discharging standard,and the phenomenon of exothermic reaction in SCWO was found.

关 键 词：超临界水氧化 偶氮染料 脱色 高浓度有机废水 

分 类 号：TU313[建筑科学—结构工程]