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

作　　者：赵正丹 姜刚村 ZHAO Zhengdan;JIANG Gangcun(Shandong Kaitai Technology Co.,Ltd.,Qingdao Shandong 266034,China;Shandong Wansheng Engineering Design Co.,Ltd.,Jinan Shandong 250102,China)

机构地区：[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

出　　处：《辽宁化工》2024年第6期927-930,共4页Liaoning Chemical Industry

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250r·min^(-1),反应时间26.69min。在最佳条件下,出水挥发酚质量浓度为100.6mg·L^(-1),去除率为93.55%。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 MIBK 

分 类 号：X784[环境科学与工程—环境工程]