本文是正在进行的一项研究的一部分，该研究旨在评估废水如何产生消毒副产物 （DBPs）及其前体对饮用水中的DBPs有贡献。具体来说，本文介绍了一项实地调查 许多不同类型的废水处理厂，它们记录了废水的来源 卤化DBP（如果进行氯消毒），以及所有情况下的DBP前体。 由于处理后的废水中的氨含量通常很高，因此需要添加氯 通常形成组合氯（氯胺），从而最大限度地减少瞬时形成 大多数卤化DBP中。 然而，亚硝胺（例如，N-亚硝二甲胺[NDMA]） 通常是形成的。 处理后的废水含有残留的饮用水天然有机物（NOM）。 虽然出水有机物的溶解有机碳（DOC）浓度 与饮用水相比，EfOM的腐殖酸含量相对较高 比紫外线吸收率（SUVA）相对较低。苏瓦的低水位往往是 与氯的反应性较低，通常每小时生成较少的三卤甲烷（THM）和其他DBP 单位医生。THM前体的存在，以及在某些情况下，卤乙酸前体的存在 与苏瓦的关系最好。初步数据表明，某些含氮物质的形成 DBP（例如，卤代乙腈和亚硝胺）或其前体在处理过的溶液中的存在 废水污染严重。某些含氮DBP前体的存在与 溶解有机氮的水平。包括32个参考文献、表格和图表。

This paper is part of an ongoing study to evaluate how wastewater-derived disinfection byproducts (DBPs) and their precursors contribute to DBPs in drinking water. Specifically, this paper presents a field survey of many different types of wastewater treatment plants which documents that they are sources of halogenated DBPs, if chlorine disinfection is practiced, and DBP precursors in all cases. Because the level of ammonia in treated wastewater usually is high, the addition of chlorine typically forms combined chlorine (chloramines), which minimizes the instantaneous formation of most halogenated DBPs. However, nitrosamines (e.g, N-nitrosodimethylamine [NDMA]) often are formed. Treated wastewater contains residual drinking water natural organic matter (NOM). Although the dissolved organic carbon (DOC) concentration of the effluent organic matter (EfOM) is relatively high compared to drinking water, the humic content of the EfOM (based on specific ultraviolet absorbance (SUVA))is relatively low. Waters low in SUVA tend to be less reactive with chlorine and typically form less trihalomethanes (THMs) and other DBPs per unit DOC. The presence of THM precursors and, in some cases, haloacetic acid precursors correlates best with SUVA. Preliminary data suggest that the formation of certain nitrogenous DBPs (e.g., haloacetonitriles and nitrosamines) or the presence of their precursors in treated wastewater is significant. The presence of precursors for some nitrogenous DBPs correlates with the level of dissolved organic nitrogen. Includes 32 references, tables, figures.