尽管超滤（UF）是一种有效的消毒过程，但由于其高分子量截留物可去除有助于消毒副产物（DBP）形成的天然有机物，因此相对无效。进行了一项中试研究，以评估粉末活性炭（PAC）作为UF预处理的效果，以增强对三卤甲烷和卤乙酸前体的去除。PAC的加入并没有影响超滤膜的渗透性，在一个案例中，似乎可以延缓膜污染。DBP前体的去除率随着PAC剂量的增加而增加。由于这种处理没有去除溴，因此在对UF渗透液进行氯化处理后，可以观察到DBP相对形态的变化- PAC过程。包括31个参考文献、表格、图表。

Although ultrafiltration (UF) is an efficient disinfection process, it is relatively ineffective because of its high-molecular-weight cutoff for removing the natural organic matter that contributes to disinfection by-products (DBP) formation. A pilot study was conducted to evaluate the efficacy of powdered activated carbon (PAC) as a UF pretreatment to provide enhanced removal of trihalomethane and haloacetic acid precursors. PAC addition did not impair the permeability of the UF membrane and, in one case, appeared to retard membrane fouling. DBP precursor removals increased with increasing PAC dosages. Because bromide was not removed by this treatment, changes in relative DBP speciation were observed after chlorination of the permeate from the UF-PAC process. Includes 31 references, tables, figures.