A comparative study on the optimization of various operating variables of lactic acid (LA) synergistic extraction through an environment-friendly green emulsion liquid membrane (GELM) using experimental and response surface optimization has been done. The comparison between response surface methodology (RSM) and experimentally optimized values has been achieved by optimizing various operating variables (internal phase concentration, LA concentration, extractant concentration, emulsification time, treat ratio, phase ratio, agitation speed, and stirring time). The formulation of GELM organic phase constituents was done by using rice bran oil (RBO) as a green solvent, hexane as a diluent, span 80 as a surfactant, tridodecylamine (TDDA) and Aliquat336 as extractants, and NaOH as a stripping phase reagent. A better GELM stability during the LA extraction process was obtained by using the combination of RBO, TDDA, Aliquat336, and span 80. This study has shown a good agreement among all the values excluding the LA concentration and emulsification time. Hence, this present finding has indicated that RBO possesses the high potential to be utilized in the several standing ELM operations for lessening the use of toxic and costly petroleum-based organic solvents.

通过实验和响应面优化，通过环境友好的绿色乳化液膜（GELM）优化了乳酸（LA）协同萃取的各种操作变量的比较研究。通过优化各种操作变量（内相浓度，LA浓度，萃取剂浓度，乳化时间，处理比，相比，搅拌速度和搅拌时间），已经实现了响应面方法（RSM）和实验优化值之间的比较。GELM有机相成分的配制是通过使用米糠油（RBO）作为绿色溶剂，己烷作为稀释剂，跨度80作为表面活性剂，十三烷基胺（TDDA）和Aliquat336作为萃取剂，以及NaOH作为汽提相试剂进行的。通过使用RBO，TDDA，Aliquat336和跨度80的组合，可以在LA提取过程中获得更好的GELM稳定性。这项研究表明，除LA浓度和乳化时间以外，所有其他值均具有良好的一致性。因此，本发现表明，RBO具有在数种常规ELM操作中使用的巨大潜力，可减少有毒且昂贵的石油基有机溶剂的使用。