本文对四个纳滤装置的传质数据进行了统计评估，这些装置的运行时间超过22000小时。其目的是从统计学上确定均相溶液扩散（HSD）模型在多大程度上描述了压力驱动膜系统中的传质。评估的参数包括:水、总溶解固体（TDS）、钠、总硬度、钙硬度、氯化物、硫酸盐、铁和碱度。本文分为几个部分讨论了HSD传质理论、四个膜中试装置的操作、数据分析程序、统计评估结果以及总结和结论。

This paper presents a statistical evaluation of the mass transfer data from four nanofiltration plants representing over 22,000 hours of operation. The purpose was to statistically determine how well the homogeneous solution diffusion (HSD) model describes mass transfer in pressure driven membrane systems. Parameters evaluated include the following: water, total dissolved solids (TDS), sodium, total hardness, calcium hardness, chloride, sulfate, iron, and alkalinity. This paper is divided into sections discussing the HSD theory of mass transfer, the four membrane pilot plants operations, the data analysis procedures, the results of the statistical evaluation, and the summary and conclusions.