本研究的目的是了解每个设施的回收实践，描述回收水的质量，并调查回收对工厂进水质量和处理厂性能的影响。该项目的范围包括检查现有的循环水水质数据（工厂抓取样本和信息收集规则（ICR）数据），了解工厂示意图和操作，并进行现场采样和分析，以检查循环水水质和处理影响。

The objectives of this research were to understand recycle practices at each facility, characterize recycle water quality and investigate impacts of recycle on plant influent quality and treatment plant performance. The scope of the project involved examining existing recycle water quality data (plant grab samples and Information Collection Rule (ICR) data), understanding plant schematics and operations, and conducting on-site sampling and analysis to examine recycle water quality and treatment impacts.