In this research, the membranes were stemmed from the biopolymer containing quaternary amine moieties (Chitosan and Chitosan-palm) for nanofiltration purposes. The developed membranes were fully featured using different characterization techniques (SEM), (TGA), zeta potential, and contact angle measurement. The membrane’s features were systematically characterized in hydrophilicity contact angle, surface morphology, and charge on the surface, acidity, and water permeability. The permeability of water for the chitosan membrane with palm was 3.04 ± 0.12 L m⁻² h⁻¹bar⁻¹ twice as the average permeability of the pristine chitosan membrane 1.68 ± 0.04 L m⁻².h⁻¹.bar⁻¹. The salt rejection was enhanced (from 5% for NaCl to 70% for MgCl₂ in the same condition). These membranes could endure up to 22 bar. Therefore, the developed Chitosan and chitosan-palm membranes are more noteworthy for water treatment than the other commercially available membranes and costly activated carbons.

在这项研究中，膜是从含有季胺部分（壳聚糖和壳聚糖棕榈）的生物聚合物中提取出来的，用于纳滤。使用不同的表征技术（SEM），（TGA），ζ电位和接触角测量，可以对已开发的膜进行全面表征。膜的特征被系统地表征为亲水性接触角，表面形态和表面电荷，酸度和水渗透性。带有壳的壳聚糖膜的水渗透率是原始壳聚糖膜的平均渗透率1.68±0.04 L m ^-2 .h ^-1 .bar ^-1的3.04±0.12 L m ^-2 h ^-1 bar ^-1的两倍。。在相同条件下，脱盐率提高了（从NaCl的5％提高到MgCl _2的70％）。这些膜可承受高达22 bar的压力。因此，与其他市售膜和昂贵的活性炭相比，已开发的壳聚糖膜和壳聚糖-棕榈膜在水处理方面更值得注意。