饮用水和废水的氯化会产生一组副产品 包括对人类健康构成严重风险的卤乙酸（HAAs）。占主导地位 在饮用水和管道中HAAs生物降解中起作用的细菌种群 研究了壁生物膜、颗粒活性炭（GAC）过滤生物膜和废水 通过持续富集和分离能够生长的微生物进行研究 三种主要的HAA，一氯乙酸（MCAA），二氯乙酸（DCAA），或 三氯乙酸（TCAA），作为唯一的碳源和能源。系统发育分析， 脱卤酶基因，以及HAA降解的特征 环境保护正在进行中。包括16个参考文献、图表。

Chlorination of drinking water and wastewater generates a group of byproducts including haloacetic acids (HAAs) that pose serious risks on human health. Dominant bacterial populations functioning in the biodegradation of HAAs in drinking water, pipe wall biofilm, granular activated carbon (GAC) filter biofilm, and wastewater were investigated by continuous enrichment and isolation of organisms capable of growth with three dominant HAAs, monochloroacetic acide (MCAA), dichloroacetic acid (DCAA), or trichloroacetic acid (TCAA), as sole carbon and energy source. Phylogenetic analysis, dehalogenase genes, and characterization of HAA degradation of the organisms in the environment is underway. Includes 16 references, figures.