供水设施必须确保有足够的剩余水量 二级消毒剂的浓度持续存在 在整个配送系统中防止 细菌再生。为了预测消毒剂浓度， 实用工具必须结合使用建模 以及水质现场采样 昂贵的如有必要，可减少取样需求 公用事业公司具有更强大的水质建模功能 容量这项研究扩展了对 氯胺在分布中的衰变速率 系统，使公用事业公司能够做出更好的预测 氯胺残留量，也许是为了减少 所需的昂贵取样量。 这项研究表明，一种简单、廉价的 新的实验室方法，管段反应器， 可以用来系统地研究消毒剂的使用率 在各种管道材料和水中腐烂 质量条件。此外，本研究还提供了 可用于预测氯胺的动力学模型 所有配电系统的衰变率。包括25个参考文献、表格和图表。

Water utilities must ensure that adequate residual concentrations of secondary disinfectants persist throughout the distribution system to prevent bacterial regrowth. To predict disinfectant concentrations, a utility must use a combination of modeling and water quality field sampling, which is expensive. The need for sampling can be reduced if a utility has a more robust water quality modeling capacity. This study extends the understanding of the rate of chloramine decay in the distribution system, enabling utilities to make better predictions of chloramine residuals and, perhaps, to reduce the amount of costly sampling required. This research demonstrates that a simple, inexpensive new lab method, the pipe section reactor, can be used to systematically study the rate of disinfectant decay in various pipe materials and water quality conditions. In addition, this study provides kinetic models that can be used to predict chloramine decay rates in all distribution systems. Includes 25 references, tables, figures.