美国范围内28个水处理厂的原水和成品饮用水调查 植物（WTPs）被用来研究溶解有机物的发生和归宿 水处理厂（WTP）中的氮（DON）。未经处理的饮用水中DON的平均浓度为0.202 5月至6月和10月至12月的调查结果分别为0.171 mgN/L。普通堂 这两项调查得出的饮用水原水和成品水浓度总体为20% 不要在全尺寸水处理厂内拆除。平均DOC/DON比率为20 mgC/mgN，且 50%的样本的DOC/DON比率在14至23 mgC/mgN之间。分子量 还对DON进行了分析，DON分馏大致与DOC分子量分布平行。包括9个参考文献、表格、图表。

A US-wide survey of raw and finished drinking water from 28 water treatment plants (WTPs) was conducted to investigate the occurrence and fate of dissolved organic nitrogen (DON) in the water treatment plants (WTPs). Average DON concentrations in raw drinking water were 0.202 and 0.171 mgN/L in May-June and October-December surveys, respectively. Average DON concentrations of raw and finished drinking water from the two surveys indicated an overall 20% DON removal across the full-scale WTPs. Average DOC/DON ratio was 20 mgC/mgN, and 50% of the samples have DOC/DON ratios between 14 and 23 mgC/mgN. Molecular weight analysis of DON has also been conducted, and DON fractionation roughly parallels DOC molecular weight distributions. Includes 9 references, table, figures.