Dependence of the polyethersulfone electrospun fibrous membrane (EFM) performance on direct and interactive effects of electrospinning parameters and post heat‐treatment conditions were studied using RSM technique. A designed number of 29 EFM samples with different average fiber thickness and average pore radius were prepared. Modified quadratic models were developed based on the experimental results to predict the membrane performance in oil‐in‐water (O/W) emulsion separation. The low error of permeation flux (7.6%) and oil rejection (11.3%) models guaranteed accuracy of the modeling results. The optimum values of the studied parameters resulting in the membrane with promising performance, including polymeric solution flow rate, hot‐pressing duration, temperature, and pressure were 0.8 mL/h, 1.5 hours, 210°C, and 0.14 bar, respectively. The polymeric solution flow rate and hot‐pressing temperature were found as the most effective parameters on water permeation flux and oil rejection, respectively. The maximum predicted permeation flux and oil rejection of this EFM were 708 LMH and 89%, respectively.

中文翻译：

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PES电纺纤维膜用于含油废水的处理：使用响应面法优化制造条件

使用RSM技术研究了聚醚砜电纺纤维膜（EFM）性能对电纺丝参数和热处理后条件的直接和交互作用的依赖性。设计了29个具有不同平均纤维厚度和平均孔半径的EFM样品。根据实验结果开发了改进的二次模型，以预测水包油（O / W）乳液分离中的膜性能。渗透通量（7.6％）和排油率（11.3％）模型的低误差保证了建模结果的准确性。所研究参数的最佳值使膜具有令人满意的性能，包括聚合物溶液的流速，热压持续时间，温度和压力分别为0.8 mL / h，1.5小时，210°C和0.14 bar。发现聚合物溶液的流速和热压温度分别是对水渗透通量和排油率最有效的参数。该EFM的最大预测渗透通量和排油率分别为708 LMH和89％。