用萃取法处理含苯胺废水的研究

Study on Removing Aniline from Wastewater by Means of Extraction

本文介绍了以甲苯做萃取剂萃取硫化橡胶促进剂生产废水中苯胺类物质的方法,确定了萃取级数、萃取剂配比 和萃取时间等工艺参数。经过萃取,废水中的苯胺类物质与化学需氧量的去除率分别达95％和88％以上,萃取后的废水 可以进行生化处理。

Wastewater from the process of making rubber vulcanization accelerator contains many kind of aniline. In this paper,the method of extracting aniline from the wastewater using methyl benzene as extracting agent is discussed. The stage of extraction,the proper ratio of making up extractive agent,extractive hours and the other technological parameters are determined. More than 95% of aniline and more than 88% of COD in wastewater are removed by extraction. Moreover the wastewater can be treated by biological process accordingly.