Parabens are the esters of p-hydroxybenzoic acid extensively used as antimicrobial preservatives in food, pharmaceuticals and personal care products. These compounds have been reported to have estrogenic and antiandrogenic properties. The separation of methylparaben from water by hollow fiber supported liquid membrane (HFSLM) and pseudo-emulsion hollow fiber membrane strip dispersion (PEHFSD) technique was studied. Output responses: permeability and stripping percentage were maximized by Grey-Taguchi technique. Concentrations of methylparaben in the three phases at equilibrium were in good agreement with the values calculated from the material balance. Stripping percentage for HFSLM and PEHFSD system were 67% and 90.52% respectively at a contact time of 90 minutes. The estimated permeability was 3.8859 × 10⁻⁵ and 7.8041 × 10⁻⁵ cm/sec for HFSLM and PEHFSD system respectively.

对羟基苯甲酸酯是对羟基苯甲酸的酯，广泛用作食品，药品和个人护理产品中的抗菌防腐剂。据报道这些化合物具有雌激素和抗雄激素特性。研究了中空纤维支撑液膜（HFSLM）和拟乳液中空纤维膜条分散液（PEHFSD）从水中分离对羟基苯甲酸甲酯的方法。输出响应：Grey-Taguchi技术使渗透率和剥离率最大化。平衡状态下三相中对羟基苯甲酸甲酯的浓度与从物料平衡计算得出的值非常吻合。在90分钟的接触时间下，HFSLM和PEHFSD系统的剥离率分别为67％和90.52％。估计的渗透率为3.8859×10 ^-5对于HFSLM和PEHFSD系统，分别为7.8041×10 ^-5 cm / sec。