This study is aimed at developing system mathematical design models to simulate and optimize a full scale forward osmosis (FO) for a hollow fibre membrane module for energy efficient desalination. Experimental data from a commercial outer selective CTA hollow fibre FO membrane module was used for validation. Less than 10% difference between the simulation and experimental results were observed which validated the reliability of the models. Simulation and design were performed for a 1000 m³/day FO plant using 0.6 M NaCl as draw solution (DS) (~seawater) and 0.02 M NaCl feed solution (FS) (~MBR effluent) to produce 0.25, 0.2 and 0.15 M NaCl diluted seawater to reduce the energy consumption of downstream pressure driven desalination process. A single element parallel module arrangement was found more suitable for this commercial hollow fibre membrane element. Finally, the numerical simulations revealed that to achieve 0.25, 0.20 and 0.15 M final DS concentrations, the optimum number of modules required were 370, 435 and 555 respectively considering membrane cost and energy consumption. The FO system using the commercial CTA hollow fibre module was found more energy efficient than a commercial TFC spiral wound membrane module.

这项研究旨在开发系统数学设计模型，以模拟和优化中空纤维膜组件的全尺寸正向渗透（FO），以实现高效率的脱盐。来自商业外部选择性CTA中空纤维FO膜组件的实验数据用于验证。仿真和实验结果之间的差异小于10％，这证明了模型的可靠性。对1000 m ³进行了仿真和设计/天的FO厂，使用0.6 M NaCl作为汲取溶液（DS）（〜海水）和0.02 M NaCl进料溶液（FS）（〜MBR废水）来生产0.25、0.2和0.15 M NaCl稀释海水，以减少下游的能耗压力驱动的脱盐过程。发现单元件并联模块布置更适合于这种商业中空纤维膜元件。最后，数值模拟表明，要达到0.25、0.20和0.15 M的最终DS浓度，考虑到膜成本和能耗，所需的最佳模块数分别为370、435和555。发现使用商用CTA中空纤维组件的FO系统比商用TFC螺旋缠绕膜组件更节能。