在长期运行过程中，高压膜的物理化学性质 膜污染会导致表面变化，包括表面电荷， 疏水性、孔径和功能性。小型横流平板膜 使用装置进行膜污染和截留试验，以检查输送 非离子痕量有机污染物通过未经处理和污染的膜。拒绝 由于膜污染，非离子化合物的行为发生了显著变化。 未经处理的膜样品观察到了随时间变化的排斥趋势，但未经处理 对于被污染的膜来说并不显著。膜污染导致膜污染增加 非离子化合物的截留率和截留率在一段时间内保持相对恒定 时间污垢层增加了尺寸排除效应，消除了吸附， 疏水性非离子溶质通过膜的分配和扩散。包括10个参考文献、表格和图表。

During long-term operation, the physical-chemical properties of high-pressure membrane surface can change as a result of membrane fouling, including surface charge, hydrophobicity, pore size and functionality. Bench-scale cross-flow flat sheet membrane units were employed for membrane fouling and rejection tests to examine the transport of non-ionic trace organic pollutants through virgin and fouled membranes. The rejection behavior of non-ionic compounds changed significantly as a result of membrane fouling. A time-dependent rejection trend was observed for virgin membrane specimens but was not remarkable for fouled membranes. Membrane fouling resulted in an increased rejection of non-ionic compounds and the rejection remained relatively constant over time. The fouling layer increased the size exclusion effect and eliminated the adsorption, partition and diffusion of hydrophobic non-ionic solutes through the membrane. Includes 10 references, table, figures.