为解决水资源短缺问题，人们广泛采用了各种废水回收工艺， 尤其是膜过滤。二级或三级处理废水中的有机物（EfOM） 废水是废水回收的目标材料，因为EfOM 相对高于天然有机物（NOM）的DOC水平。超滤膜过滤 在污水回用方面，超滤（UF）膜比纳滤（NF）膜更有效 在回收率和能源成本方面，但EfOM的去除效率低于NF膜，且污染严重 EfOM是其使用的主要障碍。因此，EfOM在超滤膜中的传输受到严格限制 为了最大限度地减少膜有机污染和通量下降。 此外，为了提高溶解性有机污染物的去除效率，已经进行了几项不同的研究 通过超滤膜与明矾或氧化铁混凝，以及 粉末活性炭（PAC）用作预处理。然而，用明矾或氧化铁进行凝固 在去除溶解有机物方面并不成功，PAC预处理提供了显著的通量下降。因此，聚合物添加剂被测试为 对膜过滤进行预处理，以提高EfOM的去除率。 本研究的目的是从EfOM去除和通量方面评估膜的性能 根据EfOM评估聚合物作为预处理的混凝过程的效率 通过超滤膜过滤去除，并确定膜过滤的最佳条件， 尤其是高负电荷超滤膜。包括6个参考文献、表格、图表。

Various processes for wastewater reclamation have been widely used to overcome water shortage, especially with membrane filtration. Effluent organic matter (EfOM) from secondary or tertiary-treated wastewater effluent is target material to remove for wastewater reclamation because EfOM exhibits relatively higher DOC levels than natural organic matter (NOM). Membrane filtration with ultrafiltration (UF) membrane can be more effective for reuse of wastewater effluent than nanofiltration (NF) membrane in terms of recovery and energy cost, but lower EfOM removal efficiency than NF membrane and fouling with EfOM are major obstacles to its usage. Thus, the transport of EfOM in UF membranes was rigorously investigated to minimize membrane organic fouling and flux decline. In addition, several different researches have been studied to increase removal efficiency of dissolved organic matter in the water and wastewater by UF membranes with coagulation with alum or ferric oxide and powder activated carbon (PAC) being used as pretreatment. However, coagulation with alum or ferric oxide is not successful to remove dissolved organic matter and PAC pretreatment provided significant flux decline. Thus, polymers additive was tested as a pretreatment for membrane filtration to increase EfOM removal. The objectives of this study were to evaluate membrane performance in terms of EfOM removal and flux decline, to evaluate the efficiency of coagulation process with polymers as a pretreatment in terms of EfOM removal by UF membrane filtration, and to determine optimum conditions for membrane filtration, especially for highly negative-charged UF membranes. Includes 6 references, tables, figures.