本文讨论了如何通过使用多级吸附器降低颗粒活性炭处理成本，包括串联和并联吸附器，以及串联和并联吸附器的组合。提到“合规成本:EPA对有机物控制的估计”（AWWA杂志，1980年8月）的其他观点也被提出。包括10个参考文献、图表。

This paper discusses how granular activated carbon treatment costs can be lowered through the use of multistage adsorbers, including adsorbers in series and in parallel, and combinations of series and parallel adsorbers. Other points referring to "The Cost of Compliance: An EPA Estimate for Organics Control" (JOURNAL AWWA, August 1980) are raised. Includes 10 references, figures.