内华达州南部供水系统预计将实行更严格的最高污染物水平控制，因此启动了一项关于使用二氧化氯降低其分配水中总三卤甲烷浓度的中试规模研究。初步调查显示，建造和运行颗粒活性炭后反应器将花费6000万至1亿美元。比较二氧化氯和GAC的成本和效果表明，Cl02将是该系统更好的替代品。讨论了设计考虑因素和分析技术。包括5个参考文献、图表。

Anticipating more stringent maximum contaminant level controls, the Southern Nevada Water System initiated a pilot-scale study of the use of chlorine dioxide to reduce total trihalomethane concentrations in its distributed water. A preliminary investigation revealed that constructing and operating a granular activated carbon postreactor would cost between $60 and $100 million. Comparing the cost and effectiveness of chlorine dioxide with that of GAC showed that Cl02 would be the better alternative for the system. Design considerations and analytical techniques are discussed. Includes 5 references, figures.