摘要
采用乳化液膜法去除焦化废水中的苯酚,建立了以磷酸三丁酯(TBP)为载体、Span 80为表面活性剂、煤油作膜溶剂及NaOH溶液为内相的乳化液膜体系.首先采用红外光谱分析得出TBP与酚类物质属氢键缔合.其次通过液膜稳定性实验表明,当表面活性剂体积分数为5%、油内比为1∶1、制乳时间为30 min、制乳转速为2000 r/min时,可以得到较为稳定的乳化液膜.最后根据分离实验结果得出,当表面活性剂体积分数为5%、NaOH溶液浓度为0.5 mol/L、载体体积分数为0.2%、乳水比为1/3时,苯酚的迁移率可达到95%以上.
The emulsion liquid membrane method was used to remove phenol from coking wastewater.An emulsion liquid membrane system was established with tributyl phosphate(TBP)as the carrier,Span-80 as the surfactant,kerosene as the film solvent,and NaOH solution as the internal phase.First,the infrared spectrum analysis method was used to determine the infrared spectrum of TBP-supported phenol.Based on the change of the wave number shift of the corresponding functional group,it was concluded that TBP was hydrogen-bonded with phenols.Liquid film stability experiments show that when the surfactant concentration is 5%,the internal oil ratio is 1∶1,the milking time is 30 min,and the milking speed is 2000 r/min,a more stable emulsion film can be obtained;separation experiment The results show that when the surfactant concentration is 5%,the NaOH solution concentration is 0.5 mol/L,the carrier concentration is 0.2 mol/L,the milk When the water ratio is 1/3,the mobility of phenol can reach more than 95%.
作者
焦潇帅
王力
颜冰川
殷景超
JIAO Xiaoshuai;WANG Li;YAN Bingchuan;YIN Jingchao(School of Safety and Environmental Engineering,Shandong University of Science and Technology,Qingdao 266590,China;School of Chemical and Biological Engineering,Shandong University of Science and Technology,Qingdao 266590,China)
出处
《膜科学与技术》
CAS
CSCD
北大核心
2020年第4期119-125,共7页
Membrane Science and Technology
基金
国家自然科学基金项目(21276146)。
关键词
乳化液膜
苯酚
稳定性
迁移率
emulsion film
phenol
stability
removal rate
