乳化液膜处理含铬废水

Removal of chromium(Ⅲ) from aqueous waste solution by an emulsion liquid membrane

本文研究了磷酸三丁酯(TBP)、Span80、煤油和二(2-乙基己基磷酸)(P204)、磺化聚丁二烯(LYF)、煤油两个乳化液膜体系分别在表面活性剂1%-6%(质量比),载体1%-6%(质量比),迁移时间3-25min对铬(Ⅲ)迁移的影响进行了对比实验。两个体系的迁移率都可以达99.75%-99.9%,但在表面活性剂,载体的用量和迁移时间上P204-Span80-煤油体系优于TBP-LYF-煤油体系。

The study had highlighted the importance of the removal of chromium（III） in different systems which were （1）tributyl phosphate, span-80, commercial kerosene and （2）di （2-ethylhexyl） phosphoric acid, sulfonated liquid polybutadiene, commercial kerosene. The important factors studied which affected the removal of ehromium（III） were the concentrations of surfactant （1--6 % w/w）, carrier （1--6% w/ w）, transfer time （3--25 min）. Both was possible to remove 99. 75 99. 9% of chromium（III） in different systems ,then （1） system is superior to （2） system.