随着监管变得更加严格，人们对细菌再生有了更好的了解，通过生物活性去除有机物质正受到越来越多的关注。本文比较了两种去除消毒副产物前体的颗粒活性炭（GAC）。一种活性炭是作为吸附剂制造的煤基碳，另一种是主要作为生物活性基质制造的木基碳。在为期一年的试点规模评估后，对两个GAC的绩效进行了比较。一旦GAC系统达到平台，两种碳类型的性能几乎没有差异；他们去除了大约15-20%的前体材料。然而，为吸附而制造的活性炭去除的总有机碳是其他活性炭的七倍。 包括10个参考文献、表格和图表。

The removal of organic materials by biological activity is gaining greater attention as regulations become stricter and bacterial regrowth is better understood. This article compares two types of granular activated carbon (GAC) for removing the precursors of disinfection byproducts. One GAC was a coal-based carbon manufactured as an adsorbent, and the other was a wood-based carbon manufactured primarily as a substrate for biological activity. After a year-long pilot-scale evaluation, the performance of the two GACs was compared. Once the GAC systems had reached a plateau, there was little difference in the performance of the two carbon types; they removed about 15-20 percent of the precursor material. The GAC manufactured for adsorption, however, removed seven times more total organic carbon than did the other GAC. Includes 10 references, tables, figures.