本文研究了Zenon Environmental公司开发的两种膜的性能。这种膜是一种薄膜复合“松散反渗透”（也称为纳滤）膜和一种截留分子量非常低的超滤膜。其应用是处理天然有机物含量高的地表水，以生产饮用水。颜色和三卤甲烷形成的潜在水平很高。为了评估这些膜，进行了为期六个月的初步研究。凝胶层通量模型已成功用于预测中试研究中观察到的性能。得出的结论是，组件中的水动力条件对性能有重大影响。 为了提高膜的性能，必须采用具有更高边界层传质系数的不同组件配置。

This paper investigates the performance of two membranes developed at Zenon Environmental. The membranes are a thin film composite "loose- RO" (also termed nanofiltration) membrane and an ultrafiltration membrane with a very low molecular weight cutoff. The application is the treatment of surface water that is high in natural organic content for the production of drinking water. Color and trihalomethane formation potential levels are high. A six month pilot study was undertaken to evaluate these membranes. A gel layer flux model was used successfully to predict the performance observed in the pilot study. It is concluded that the hydrodynamic conditions present in the modules are a major influence on performance. To improve the performance of this membrane a different module configuration with a higher boundary layer mass transfer coefficient must be adopted.