本powerpoint演示文稿的目标包括: 通过纳滤（NF）和 微咸水反渗透（BWRO）膜；评估操作参数对亚硝胺排异的影响；定量分析了亚硝胺的输运参数。介绍了亚硝胺过滤、亚硝胺过滤结果建模和亚硝胺前体过滤的实验步骤。陈述结论表明: 纳滤膜 拒绝率相对较低（9-75%），且 这不是一个可行的选择，尤其是对于低分子量的亚硝胺； BWRO膜 显示出更高的拒绝率（54-97%）和 低分子量亚硝胺需要额外的处理步骤； 排斥机制表明 亚硝胺（不带电化合物）的排斥反应占主导地位 受尺寸限制， 相对较低的低分子量亚硝胺废品率主要是由于 通过BWRO膜的有效扩散，以及通过BWRO膜的亚硝胺运输，发现 与水扩散率成比例。包括8个参考文献、表格、图表。

The objectives of this powerpoint presentation include the following: examine rejections of nitrosamines and their precursors by nanofiltration (NF) and brackish water reverse osmosis (BWRO) membranes; assess the effects of operating parameters on nitrosamine rejections; and, quantitatively analyze the transport parameters of nitrosamines. Experimental procedures are presented, along with nitrosamine filtration, modeling of nitrosamine filtration results, and nitrosamine precursor filtration. Presentation conclusions indicate that: NF membranes showed relatively low rejections (9-75%) and would not be a viable option, especially for low MW nitrosamines; BWRO membranes showed much higher rejections (54-97%) and additional treatment steps would be required for low MW nitrosamines; rejection mechanism showed that rejections of nitrosamines (uncharged compounds) dominantly governed by size exclusion, relatively low rejections of low MW nitrosamines are primarily due to effective diffusion through BWRO membranes, and transport of nitrosamines through BWRO membranes found to be proportional to aqueous diffusivity. Includes 8 references, tables, figures.