随着公用事业面临不断增长的供水需求和不断减少的优质淡水供应，对城市污水回收和再利用的需求正在增加。为了增加地表水供应，如果增加供应的最终用途是生产饮用水，或为超纯水用户提供饮用水替代品，则废水回收需要使用先进的处理工艺，以确保质量和可靠性。在越来越多的程度上，膜工艺正被用来满足这一需求。本文描述了目前正在实施的三个项目，其中膜工艺被用作核心处理工艺，以提供先进的水回收。 其中两个项目位于美国东部，一个是亚太地区（乔治亚州格温内特县、弗吉尼亚州劳登县和新加坡共和国）。包括4个参考文献、表格和图表。

The need for reclamation and reuse of municipal wastewater is increasing as utilities face ever-rising water supply needs and dwindling high quality, fresh water supplies. Wastewater reclamation for the purpose of surface water supply augmentation, where the end use of the augmented supplies is for potable water production, or for the purpose of providing a replacement to potable water for ultrapure water users, requires that advanced treatment processes be used to ensure both quality and reliability. To a greater and greater degree, membrane processes are being utilized to meet this need. This paper describes three projects currently under implementation, where membrane processes are being employed as the core treatment processes to provide for advanced water reclamation. Two of these projects are located in the eastern United States, while one is the Asia-Pacific (Gwinnett County, Georgia; Loudoun County, Virginia; and Republic of Singapore). Includes 4 references, tables, figures.