离心萃取法处理高浓度DMF废水  

Treatment of High Concentration DMF Wastewater by Centrifugal Extraction

作　　者：高艳芳 李瑞琛 杨鹏飞 王利军 张书锋 GAO Yanfang;LI Ruichen;YANG Pengfei;WANG Lijun;ZHANG Shufeng(Zhengzhou TiEi Extraction Technology Co.Ltd,Zhengzhou 450000,China)

机构地区：[1]郑州天一萃取科技有限公司

出　　处：《河南化工》2020年第1期33-35,共3页Henan Chemical Industry

摘　　要：利用离心萃取法处理高浓度DMF废水,考察了相比、级数及流量对DMF萃取效果的影响,确定该DMF废水处理的最佳条件。由结果可知,较佳的操作条件是:相比O/A=1∶1(体积比),三级逆流,进料总流量控制在600 mL/min内,萃余液中的DMF含量均低于1%。同时解决了现有工艺存在的一系列问题,大大减少了废水的处理成本。Centrifugal extraction is used to treat high concentration DMF wastewater.The influence of phase ratio,extraction stages and flow on the extraction efficiency of DMF are investigated.The results indicated that the optimum operating parameters are as follows:the phase ratio(O/A)is 1∶1,extraction stages is three stage counter current and the total flow rate is within 600 mL/min.Under the above conditions,the content of DMF in the raffinate is less than 1%.At the same time,it solved a series of problems existing in the existing process and greatly reduce the cost of wastewater treatment.

关 键 词：DMF废水 离心萃取 萃余液 

分 类 号：X783[环境科学与工程—环境工程]