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PES electrospun fibrous membrane for oily wastewater treatment: Fabrication condition optimization using response surface methodology
Author(s) -
Bahmani Marzieh,
Zarghami Soheil,
Mohammadi Toraj,
Asadi Amir Atabak,
Khanlari Samaneh
Publication year - 2021
Publication title -
polymers for advanced technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.61
H-Index - 90
eISSN - 1099-1581
pISSN - 1042-7147
DOI - 10.1002/pat.5140
Subject(s) - materials science , permeation , response surface methodology , emulsion , volumetric flow rate , membrane , electrospinning , composite material , chemical engineering , chromatography , polymer , chemistry , thermodynamics , physics , engineering , biochemistry
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.