The present work deals with the production of liquid emulsion membrane (LEM) accomplished by applying hydrodynamic cavitation-based process for the extraction of Chromium(VI) from wastewater. Aliquat 336 was used as the carrier during membrane transport. Diesel and Span 80 were used as diluent and emulsifier, respectively. NaOH (as a stripping agent in the internal phase) was used in emulsion preparation with the use of orifice (1 mm diameter)-based hydrodynamic cavitation process. Chromium(VI) removal from heavy metal-containing water was examined with the influence of LEM production time, amount of carrier, surfactant concentration, treat ratio (which is the ratio of feed phase to emulsion membrane phase) and type of diluent. The LEM synthesized using hydrodynamic cavitation process showed the possibility of complete removal of Chromium(VI) from the feed phase containing heavy metals, i.e. Chromium(VI). The optimal conditions were observed to be 2 min emulsification time, 1.00% carrier concentration, 3% surfactant concentration and treat ratio of 1:05. Therefore, the application of hydrodynamic cavitation for the production of LEM with excellent stability can be considered as a novel process for the extraction of Chromium(VI) from wastewater.

目前的工作涉及通过应用基于水力空化的工艺从废水中萃取铬（VI）来完成液体乳液膜（LEM）的生产。在膜运输期间将Aliquat 336用作载体。柴油和Span 80分别用作稀释剂和乳化剂。NaOH（作为内相中的汽提剂）通过孔板（直径1毫米）的水力空化过程用于乳液制备。检查了LEM生产时间，载体量，表面活性剂浓度，处理比例（即进料相与乳化膜相的比例）和稀释剂类型的影响，从含重金属的水中去除了六价铬。使用水力空化工艺合成的LEM显示出从含重金属即铬（VI）的进料相中完全除去铬（VI）的可能性。最佳条件是乳化时间为2分钟，载体浓度为1.00％，表面活性剂浓度为3％，处理比例为1:05。因此，将水动力空化技术用于生产稳定性极好的LEM可以看作是一种从废水中提取铬（VI）的新方法。