本文探讨了将臭氧、颗粒活性炭（GAC）或臭氧-活性炭单元工艺纳入常规水处理系统的技术和经济可行性，以去除微量有机化合物，减少总有机碳，并控制不愉快的味道和气味。这项研究的结果表明，当挥发性卤化有机化合物的去除是控制GAC使用寿命的标准时，较低的GAC运行成本并不能充分抵消预分区的成本。更传统的治疗方案可能以更低的总成本提供相同的系统性能。 在气味控制方面，GAC和臭氧GAC一直表现良好。剩下的问题是，消费者是否准备花更多的钱来实现更高的水质目标。包括33个参考文献、表格和图表。

This article examines the technical and economic feasibility of incorporating ozone, granular activated carbon (GAC), or ozone-GAC unit processes into a conventional water treatment train to remove trace organic compounds, to reduce total organic carbon, and to control unpleasant tastes and odors. The results of this study indicate that the cost of preozonation is not sufficiently offset by lower GAC operating costs when removal of volatile halogenated organic compounds is the criterion controlling GAC service life. More conventional treatment options may offer equal system performance at lower total costs. For odor control, both GAC and ozone-GAC consistently performed well. The remaining issue is whether the consumer is prepared to spend additional dollars to achieve higher water quality goals. Includes 33 references, tables, figures.