调查该产品过去的消毒结果（BYP） 配电系统的退化。两个项目即将完工 （一个由AwwaRF资助，另一个由国家科学基金会资助）获得 用于研究DBP的非生物降解途径和动力学，特别是 强调铁金属和铁腐蚀产物的作用，如铁管 常见于美国和其他地方的配送系统中。此外，一个新的 AwwaRF项目正在进行，以研究卤乙酸的生物降解 （哈斯）在配电系统中。实验方法包括相对简单的 玻璃瓶分批实验，新型管式反应器分批实验，以及 供水设施。包括20个参考文献、表格和图表。

This paper discusses the results of past and ongoing research to investigate disinfection byproduct (DBP) degradation in distribution systems. Two projects nearing completion (one funded by AwwaRF and one funded by the National Science Foundation) were performed to investigate abiotic DBP degradation pathways and kinetics, with particular emphasis on the role of iron metal and iron corrosion products, as iron pipes are commonly found in distribution systems in the U.S. and elsewhere. In addition, a new AwwaRF project is underway to investigate the biodegradation of haloacetic acids (HAAs) in distribution systems. The experimental approach includes relatively simple glass bottle batch experiments, batch experiments in novel pipe reactors, and a survey of water utilities. Includes 20 references, table, figure.