本研究的主要目标是优化颗粒活性炭（GAC）处理，以满足更严格的三卤甲烷（THM）标准，估算优化GAC处理的成本，确定GAC处理水最终消毒的副产品，并评估快速小规模柱试验（RSSCT）模拟中试碳承包商总有机碳（TOC）突破的能力。通过GAC处理可达到的最低THM浓度为10 ug/L。得出的结论是，这种处理对于控制THM来说是昂贵的，THM是GAC废水经氯或氯胺消毒后的主要副产品。RSSCT被证明是估算中试规模TOC突破的一种经济手段，可用于对碳利用率和成本进行初步估算。包括14个参考文献、表格和图表。

The primary objectives of this study were to optimize granular activated carbon (GAC) treatment to meet more stringent trihalomethane (THM) standards, to estimate the costs of optimized GAC treatment, to identify by-products of the final disinfection of GAC-treated water, and to assess the ability of the rapid small-scale column test (RSSCT) to simulate total organic carbon (TOC) breakthrough from pilot-scale carbon contractors. The lowest THM concentration achievable by means of GAC treatment was found to be 10 ug/L. It was concluded that this type of treatment is expensive for the control of THMs, the predominant by-products of postdisinfection of GAC effluents with chlorine or chloramines. The RSSCT was shown to be an economical means of estimating pilot-scale TOC breakthrough, which can be used in making preliminary estimates of carbon utilization rates and cost estimates. Includes 14 references, tables, figures.