卤乙酸（HAAs）是一类 产生的消毒副产物（DBPs） 来自天然气的氯化 饮用水中的有机物。 对癌症影响的担忧 哈斯促使美国保护环境 该机构将通过 第一阶段消毒剂/DBP规则。稳定性 HAAs在配电系统中的应用 样本存储还不是很清楚，但是 它们在成品水中的控制对我们来说很重要 供水设施。 本研究的目的是调查 微生物的稳定性和生物降解 存在悬浮细菌时的HAAs 或水中的生物活性碳（BAC） 并评估碳吸附能力 哈斯的实验。哈斯 在有人在场的情况下，这些药物并不稳定 生物活性，BAC有效去除 毫克每升，哈斯水平上升 脱氯饮用水。退化 哈斯的死亡与死亡人数的增加同时发生 异养细菌生长，表明 那是一部分普通的 研究了处理水中的异养细菌 能够降解哈斯。颗粒活化 碳（GAC）也通过 碳吸附和 生物降解。 周和谢建议碳 吸附HAAs可以补充生物活性 HAA去除-当新的GAC过滤器 介质安装在水处理系统中， 碳吸附可以去除HAAs 在生物活性充分发挥之前。由 当碳吸附容量 耗尽后，生物降解将占主导地位 移除哈斯。这项研究提供了 更了解水资源的专业人士 HAAs在分布中的稳定性 系统和样本的重要性 HAA监测和监测期间的保存 分析包括19个参考文献、表格、图表。

Haloacetic acids (HAAs) are a group of disinfection byproducts (DBPs) resulting from chlorination of natural organic matter in drinking water. Concerns over the carcinogenic effects of HAAs prompted the US Environmental Protection Agency to regulate them through the Stage 1 Disinfectants/DBP Rule. The stability of HAAs in distribution systems and during sample storage is not well understood, but their control in finished water is important to water utilities. The objectives of this study were to investigate the stability and biodegradation of HAAs in the presence of suspended bacteria or biologically active carbon (BAC) in water and evaluate the carbon adsorption capacities of HAAs through experiments. HAAs were not found to be stable in the presence of biological activity, BAC effectively removed milligram-per-litre, level HAAs spiked in dechlorinated drinking water. The degradation of HAAs coincided with an increase in heterotrophic bacteria growth, indicating that a certain portion of common heterotrophic bacteria in treated water was able to degrade HAAs. Granulated activated carbon (GAC) also removed HAAs, through a combination of carbon adsorption and biodegradation. Zhou and Xie suggest that the carbon adsorption of HAAs could supplement biological HAA removal - when new GAC filter media are installed in water treatment systems, carbon adsorption could remove HAAs before bioactivity is fully developed. By the time the carbon adsorption capacity is exhausted, biodegradation will be dominant in removing HAAs. This study provides water professionals with a better understanding of the stability of HAAs in the distribution system and the importance of sample preservation during HAA monitoring and analysis. Includes 19 references, table, figures.