Few studies have reported on the detail of the mass production process of nanofiltration (NF) membranes and modules due to technical confidentiality. This work presents a procedure of fabrication of NF membranes and modules on the pilot scale. Thin film composite (TFC) NF flat-sheet membranes of 300 mm width were continuously fabricated via custom-designed equipment. The fabrication parameters and their effects on NF performance were systematically investigated. The optimized conditions parameters were achieved for excellent NF modules’ performance. The modules show over 75 L m⁻² h⁻¹ flux at 6 bar and over 95% MgSO₄ rejection. This study may provide insightful guidelines for the scale-up of NF membranes for water treatment and other applications.

由于技术上的机密性，很少有研究报道过纳滤（NF）膜和组件的大规模生产过程的细节。这项工作提出了中试规模的NF膜和组件的制造过程。通过定制设备连续制造300毫米宽的薄膜复合材料（TFC）NF平板膜。系统地研究了制造参数及其对NF性能的影响。获得了优化的条件参数，以实现出色的NF模块性能。组件在6 bar压力下显示超过75 L m ^-2 h ^-1的通量，并且超过95％的MgSO ₄截留率。这项研究可以为水处理和其他应用中的NF膜放大提供有指导意义的指导。