在丹佛，经过10多年的试点研究，建造了一座44 L/s（1-mgd）的处理厂，以进一步评估将未经氯化的二级废水直接转化为饮用水水质的最有前景的工艺。本文报告的研究目的是确定生产水的安全性；为此，将再利用厂的水质与丹佛水务部提供给客户的水质进行了比较。这篇文章的大部分内容都是对处理过程的描述，尤其是颗粒物去除、氮去除、有机物、无机物和病原体的去除。 许多表格将再利用工厂的处理水与监管标准以及丹佛饮用水的质量进行了比较。包括22个参考文献、表格和图表。

In Denver, following more than 10 years of pilot study, a 44 L/s (1-mgd) treatment plant was constructed to further evaluate the most promising processes to convert unchlorinated secondary wastewater directly to drinking water quality. The purpose of the study reported here was to establish the safety of the water produced; to do this, the quality of the water from the reuse plant was compared to the quality of water provided to customers of the Denver Water Department. Most of the article is devoted to a description of the treatment process, particularly particulate removal, nitrogen removal, and removal of organics, inorganics, and pathogens. A number of tables compare treated water from the reuse plant to regulatory standards and to the quality of Denver's drinking water. Includes 22 references, tables, figures.