对饮用水中总有机卤素（TOX）的分析表明 大量的毒素无法通过已知的特定消毒来解释 副产品（DBPs）。这项研究的主要目的是描述 未知卤代DBP的疏水性和分子尺寸分布 XAD树脂和超滤膜。膜截留对粒径的影响 还使用氯化黄腐酸对未知毒物进行了分析。六 从不同的地点和处理过程中收集成品水，并 分为不同的疏水性和分子大小组。结果表明 大多数未知毒素的大小在0.5 kDa到10 kDa之间，但它可能有 广泛的疏水性。超滤膜被证明可以拒绝 分子量（MW）低于膜的DBP的显著部分 切断。用去离子水冲洗可以有效地去除这些低分子量 超滤池中的化合物。大幅度减少了 当低分子量DBP被冲出细胞时，会产生未知的TOX（与对照组相比） 经典平行超滤）。黄腐酸的凝固可以显著减小体积 氯形成的UTOX的分布。包括22个参考文献、表格和图表。

The analysis of total organic halogen (TOX) in drinking water indicates that a substantial amount of the TOX cannot be accounted for by known specific disinfection byproducts (DBPs). The primary aim of the research was to characterize the hydrophobicity and molecular size distribution of the unknown halogenated DBPs using XAD resins and ultrafiltration membranes. The impact of membrane rejection on the size analysis of unknown TOX was also investigated using chlorinated fulvic acid. Six finished waters from different locations and treatment processes were collected and fractionated into various hydrophobicity and molecular size groups. The results indicate that most unknown TOX is in the size range between 0.5 kDa and 10 kDa, but it can have a wide spectrum of hydrophobicites. Ultrafiltration membranes were shown to reject a significant fraction of DBPs with molecular weight (MW) lower than the membrane cutoffs. Flushing with deionized water was effective in removing these low MW compounds from the ultrafiltration cell. A significant reduction in the size distribution of unknown TOX resulted when low MW DBPs are flushed out of the cell (comparing with classic parallel ultrafiltration). Coagulation of fulvic acid can significantly reduce the size distribution of UTOX formed by chlorine. Includes 22 references, tables, figures.