微电解--Fenton联合工艺处理硝基苯废水效能研究

PERFORMANCE OF MICROELECTROLYSIS-FENTON PROCESS TO DEGRADE THE NITROBENZENE WASTEWATER

利用微电解-Fenton联合工艺处理硝基苯废水。进行了工艺参数条件的优化,分析了影响处理效果的原因,并在优化的参数条件下对比联合工艺与其单独处理工艺的除污染效果。结果表明,微电解-Fenton联合工艺出水硝基苯去除率达99.9%,COD去除率为69.2%。在同样参数条件下单独微电解工艺硝基苯去除率为89.7%,COD去除率为42.3%,均远远低于联合工艺,而单独Fenton工艺硝基苯去除率为99.7%,COD去除率仅为30.4%,还不及联合工艺的一半。说明联合工艺经济、高效,具有很大优势。

Microelectrolysis-Fenton process was used for the disposal ofnitrobenzene wastewater. The parameters were optimized respectively first, and the reason that effect the disposal efficiency were analized. After that experiments were conducted to compare the difference among the effectiveness of Microelectrolysis- Fenton process, Microelectrolysis and Fenton processes. The total removal rates ofnitrobenzene and COD under Microeleetrolysis- Fenton process were 69.2 % and 99.9 % respectively. While under single Microelectrolysis process, the removal rates were 42.3 % and 89.7 %,and under single Fenton process 99.7% and 30.4% respectively. From the view of cost and degradation results, the combined process of Microelectrolysis-Fenton Process appears great superiority than single process.