内循环转盘萃取塔处理含酚煤化工废水研究
Study on Treatment of Phenol-containing Coal Chemical Wastewater by Internal Circulation Rotary Disk Extraction Column
赵正丹 1姜刚村2
作者信息
- 1. 山东凯泰科技股份有限公司,山东 青岛 266034
- 2. 山东万晟工程设计有限公司,山东 济南 250102
- 折叠
摘要
煤化工废水含大量的酚类化合物、氨类、石油类、氰化物等物质,处理难度大.为了回收酚类物质,以甲基异丁基甲酮(MIBK)为萃取剂,利用内循环转盘萃取塔对煤化工含酚废水进行连续萃取实验.采用单因素法考察了油水比、pH、回流比、搅拌速度、反应时间等因素对含酚废水的萃取效果的影响,得到最佳的工艺条件如下:进水 pH 为 5,油水比为 1∶10,回流比 300%,搅拌速度250 r·min-1,反应时间26.69 min.在最佳条件下,出水挥发酚质量浓度为100.6 mg·L-1,去除率为93.55%.
Abstract
The coal chemical wastewater contains a large number of phenolic compounds,ammonia,petroleum,cyanide and other substances,which is difficult to treat.In order to recover phenols,the continuous extraction experiment of phenol-containing wastewater from coal chemical industry was carried out by using the internal circulation turntable extraction tower with methyl isobutyl ketone(MIBK)as the extractant.The influence of factors such as oil-water ratio,pH,reflux ratio,stirring speed and reaction time on the extraction effect of phenol-containing wastewater was investigated by single factor method.The optimal process conditions were obtained as follows:the influent pH was 5,the oil-water ratio was 1∶10,the reflux ratio was 300%,the stirring speed was 250 r·min-1,and the reaction time was 26.69 min.Under the optimal test conditions,the volatile phenol mass concentration in the effluent was 100.6 mg·L-1,and the removal rate was 93.55%.
关键词
煤化工废水/含酚废水/内循环转盘萃取塔/MIBKKey words
Coal chemical wastewater/Phenolic wastewater/Internal circulation turntable extraction tower/MIBK引用本文复制引用
出版年
2024
NETL
NSTL
万方数据