Centre of Excellency for Membrane Science and Technology, Department of Chemical, Petroleum and Gas Engineering, Iran University of Science and Technology (IUST), Narmak, Tehran, Iran E-mail:
Membrane Research Center, Faculty of Petroleum and Chemical Engineering, Razi University, Kermanshah, Iran; Both authors had an equal contribution.
Water Sci Technol. 2022 Feb;85(4):1053-1064. doi: 10.2166/wst.2022.024.
Polyacrylonitrile (PAN) adsorptive membrane incorporated with nanosize-goethite (α-FeO(OH)) hydrous metal oxide particles (GNPs), prepared with optimal flux and Cu(II) removal in the previous study, was used to evaluate the process parameter on the Cu(II) removal. Box-Behnken Design (BBD) based on the Response Surface Methodology (RSM) was employed to evaluate the impact of Cu(II) feed solution characteristics such as pH, initial concentration of metal ion, and transmembrane pressure (TMP) on copper removal efficiency. The outcomes indicated that the RSM optimization technique could be utilized as an applicable method to find the optimum condition for the maximum Cu(II) removal with slight variance compared with the experimentally measured data. The effect of each process parameter and the coupling effect of parameters on the Cu(II) removal was assessed. Finally, the optimum condition of pH, Cu(II) concentration, and transmembrane pressure (TMP) to obtain high copper removal efficiency was decided. In the optimum condition of the Cu(II) removal, the removal of lead (Pb(II)) metal ion was evaluated by the same membrane.
聚丙稀腈（PAN）吸附膜中加入纳米针铁矿（α-FeO(OH)）水合金属氧化物颗粒（GNPs），在之前的研究中已经确定了最佳通量和铜（II）去除率，本研究利用此吸附膜评估了工艺参数对铜（II）去除率的影响。基于响应面法（RSM）的 Box-Behnken 设计（BBD）被用来评估 Cu(II)进料溶液特性（如 pH 值、金属离子初始浓度和跨膜压力（TMP））对铜去除效率的影响。结果表明，RSM 优化技术可以作为一种适用的方法，在与实验测量数据有微小差异的情况下，找到最大铜去除率的最佳条件。评估了每个工艺参数的影响以及参数之间的耦合效应对铜（II）去除的影响。最后，确定了获得高铜去除率的最佳 pH 值、Cu(II)浓度和跨膜压力（TMP）条件。在铜（II）去除的最佳条件下，用相同的膜评估了铅（Pb(II)）金属离子的去除。
