本文的目的是对之前完成的几个项目产生的数据进行批判性分析，并评估建立最低成本的理由 运行水平的消毒剂残留物，供公用事业公司用作指导值。应根据残留稳定性对适当的二级消毒剂进行排序， 生物膜控制、直接毒性和消毒副产物形成（DBP）（特拉塞尔、， 1999). 这些关键因素构成了本报告所述评估的基础 论文中，数据是从全面和试点规模的高潮中总结出来的 过去5年在达尔豪西大学进行的研究。尤其是这些 研究集中在三种潜在的二级消毒剂上:氯、氯胺 二氧化氯及其对配电系统中大肠杆菌灭活的影响， 腐蚀、DBP形成和水质变化，由于有害参数，如 锰。研究项目的最终目标是了解 这些病原体可以防止微生物污染，同时尽量减少其他水污染 分布期间的质量负担，如腐蚀和DBP的形成。简短的 本文提供了三种消毒剂的概述，以供参考。包括15篇参考文献。

The objective of this paper was to provide a critical analysis of data generated by several previously completed projects and evaluate the rationale for establishing minimum disinfectant residuals at an operational level for utilities to use as guide values. An appropriate secondary disinfectant should be ranked on the basis of residual stability, biofilm control, direct toxicity, and disinfectant byproduct formation (DBP) (Trussell, 1999). These critical factors form the basis for the assessment presented in this paper, in which data is summarized from a culmination of full-scale and pilot-scale studies conducted at Dalhousie University over the past 5 years. In particular these studies have focused on three potential secondary disinfectants: chlorine, chloramines and chlorine dioxide and their impacts on E. coli inactivation in distribution systems, corrosion, DBP formation and water quality changes due to nuisance parameters such as manganese. The ultimate goal of the research program is to understand the efficacy of these pathogens to prevent microbial contamination, while minimizing other water quality burdens, such as corrosion and DBP formation, during distribution. A brief summary of the three disinfectant options is provided herein for reference purposes. Includes 15 references.