The phase separation speed, surfactant-rich phase volume percentage (Vs/(Vs+Vw)) and recovery of PAHs were used to evaluate the CPE performance.

• 通过测定表面活性剂富集相的体积百分率Vs/(Vs+Vw)随时间的变化和最终的萃取率,研究上述四种不同辅助方法对相分离行为和萃取性能的影响。