含硝基类化合物废水脱色的实验研究  

Experimental Study on Decolorization of Nitrobenzene Wastewater

作　　者：张培[1] 张富芳[1] 王魁[1] 陈卫航[1] 曹明华[1] 丁朝刚 

机构地区：[1]郑州大学化工学院,河南郑州450001 [2]河南开普化工股份有限公司,河南巩义451200

出　　处：《郑州大学学报（工学版）》2008年第3期88-91,共4页Journal of Zhengzhou University（Engineering Science）

摘　　要：为了降低硝基废水的色度,对玉米芯吸附、超声波-H2O2、超声波-Fenton试剂-絮凝剂3种方法降低硝基废水色度可行性进行了研究.实验结果表明,玉米芯吸附法、超声波-H2O2法的处理效果不理想,处理前后废水的色度几乎未变,而超声波-Fenton试剂-絮凝剂法的脱色,处理前后废水色度变化明显.应用正交设计L16(45)对超声时间、超声功率、H2O2的加入量、FeSO4的加入量、废水液的pH值对废水颜色的相关性进行了实验研究;并考虑经济因素得优化实验条件为:H2O2的加入量为3 mL/L,FeSO4的加入量为100 mg/L,废水液pH=4,色度(稀释倍数法)为5,脱色率达90%以上.In order to decrease the chroma of nitrobenzene wastewater, the feasibility of using three methods of absorption of corncob, ultrasonic-H2O2, ultrasonic-Fenton reagent-flocculants for the decolorization of wastewater is studied in this paper. Experimental results show that both adsorption of corncob method and ultrasonic-H2O2 method have very poor results. The hue of wastewater is almost unchanged before and after the treatment. Ultrasonic-Fenton reagent-flocculants has good result of decolorization and＇ the hue of wastewater changes significantly before and after handling. Ultrasound time, ultrasonic power, the amount of H2O2 and FeSO4, and the effect of wastewater pH on decolorization have been investigated through orthogonal experiments L16（4^5）. The result is the amount of H2O2：3 mL/L, FeSO4 by volume： 100 mg/L, pH： 4. Under suitable technical conditions, the ratio of decolorization reaches above 90%.

关 键 词：硝基废水 脱色 超声波 FENTON试剂 

分 类 号：X703.1[环境科学与工程—环境工程]