溶解有机氮（DON）一直没有受到饮用水行业的重视 尽管DON对消毒副产物（DBP）的形成和 原水和成品水的形态、生物稳定性和膜污染。欧洲人 共同体指令规定，org-N的最大容许浓度为1mg Kjeldhal-N/L （DON+NH₄ ⁺），但美国没有类似的指导方针。目前还没有关于唐·法特的报道 在水处理过程中。 此外，在水处理过程中添加的一些化学品（例如:。， 聚合物）含有有机氮，它们对成品水中DON的贡献很大程度上 被忽视了。作为了解DON在水处理过程中命运的第一步，本文 这篇论文提供的证据表明，在明矾凝固过程中，某些形式的DON被去除。 在过去的20年里，海洋科学家、湖沼学家和生态学家对唐进行了研究， 提供几种测量DON浓度和理解DON的技术 发生DON由广泛的分子量化合物组成，包括 氨基酸、酰胺、杂环-N和少量非特征腈和 亚硝胺（Westerhoff等人，2002年）。本文综述了DON浓度及其影响因素 根据USGS-NAWQA的分析，超过14000个地表水的DOC/DON比率 数据集，使用TKN方法（氨+DON），TKN检测限为0.2 mgN/L。 DON浓度中值为0.34 mg-N/L，但约有30%的样本 TKN值小于0.2 mgN/L。流域中DON的主要来源包括: 上游废水排放；农业生产中有机肥料的渗透和流失 地区；富营养化水体中藻类产物的排泄；城市径流；还有森林垃圾。 地表水中的DON浓度通常高于地下水位。即使 关于流域内DON的来源、发生和命运的信息，目前还没有 与饮用水供应管理相关的DON发生解释。 包括8个参考文献、表格、图表。

Dissolved organic nitrogen (DON) has not received much attention by the drinking water community despite the potential role of DON on disinfection byproduct (DBP) formation and speciation, biostability of raw and finished water, and membrane fouling. The European Community directive has a maximum admissible concentration for org-N of 1 mg Kjeldhal-N/L (DON+NH₄ ⁺), but the US has no similar guidelines. Currently, there are no reports of DON fate during water treatment. Furthermore, some chemicals added during water treatment (e.g., polymers) contain organic nitrogen and their contribution to DON in finished water has largely been overlooked. As a first step in understanding the fate of DON during water treatment, this paper provides evidence that some forms of DON are removed during alum coagulation. Over the past two decades marine scientists, limnologists, and ecologists have studied DON, offering several techniques for measuring DON concentrations and understanding DON occurrence. DON is comprised of a broad spectrum of molecular weight compounds, including amino acids, amides, heterocyclic-N, and lesser amounts of uncharacterized nitriles and nitrosamines (Westerhoff et al. 2002). This paper summarizes DON concentrations and DOC/DON ratios in over 14,000 surface waters based upon an analysis of USGS-NAWQA datasets, which use a TKN method (ammonia + DON) with a TKN detection limit of 0.2 mgN/L. The median DON concentration was 0.34 mg-N/L, although approximately 30% of the samples had a TKN value of less than 0.2 mgN/L. Primary sources of DON in watersheds include: upstream wastewater discharges; infiltration and runoff of organic fertilizers from agricultural areas; excretion of algae products in eutrophic waters; urban runoff; and, forest litter. DON concentrations in surface waters are commonly higher than groundwater levels. Despite the information on DON sources, occurrence, and fate within watersheds, there has been no interpretation of DON occurrence as related to the management of drinking water supplies. Includes 8 references, tables, figures.