本研究的目的是通过使用各种分析技术表征纳滤（NF）和超滤（UF）膜与蛋白质、多糖（PSs）和多羟基芳烃（PHA）之间的相互作用，研究膜如何不可逆地污染有机物。这些实验中使用的膜是Spectrum（R）Molecular/Por（R）NF和UF纤维素酯膜。MWCO分别为100和100000 Da。模型PHA、PS和蛋白质分子（分别为迷迭香酸、聚半乳糖醛酸和牛血清白蛋白）被用于模拟地表水中溶解有机物（DOM）的各种成分造成的污染。 这些实验中使用的饲料浓度分别为1000 mg/L、100 mg/L和29 mg/L。PgA和RA的剂量较低是由于溶解度限制。为了污染膜，使用实验室规模的死端过滤来模拟NOM替代有机分子的膜过滤。在污垢过滤循环之前和之后进行清水通量测试。包括3个参考文献、图表。

The objective of this study was to examine how membranes irreversibly foul with organic matter, by characterizing the interaction between the nanofiltration (NF) and ultrafiltration (UF) membranes with proteins, polysaccharides (PSs) and polyhydroxyaromatics (PHAs) using a variety of analytical techniques. The membranes used in these experiments were Spectrum (R) Molecular/Por(R) NF and a UF cellulose ester membrane. The MWCOs were 100 and 100,000 Da respectively. Model PHA, PS and protein molecules (rosolic acid, polygalacturonic acid and bovine serum albumin respectively) were used to simulate fouling by the various components of dissolved organic matter (DOM) in surface waters. The feed concentrations used in these experiments are 1000 mg/L, 100 mg/L and 29 mg/L respectively. The lower dosing with PgA and RA was due to solubility constraints. To foul the membranes, bench-scale dead-end filtration was used to simulate membrane filtration of the NOM-surrogate organic molecules. Clean water flux tests were run prior to and after the fouling filtration cycle. Includes 3 references, figures.