南加州大都会水区（大都会）比较 大型紫外线消毒器的实验和模拟消毒性能 使用计算流体力学和辐照度（CFD-i）的紫外线消毒反应器 建模软件。紫外线反应器由四个4千瓦的灯组成 垂直于一个直径为24英寸的反应器中的流量，每小时处理300万加仑 日（MGD）。用MS-2大肠杆菌噬菌体对该反应器进行了验证试验。 本文中提出的验证试验是用一家工厂生产的水进行的 采用臭氧和生物过滤的常规处理厂。三维的 在设计条件下运行的多色系统的CFD-i建模 条件（三个灯亮，一个备用），并使用粒子跟踪或 基于标量传输的建模技术，预测MS-2在 0.1记录验证结果₁₀。 未来的工作将开发基于CFD-I的工具来帮助 设计用于消毒的大型紫外线处理系统（>500 MGD）的工程师 过滤后的地表水。未来的工作还将研究CFD-i的能力 预测不利水动力和环境条件下消毒效果的模型 水质状况。包括17个参考文献、表格、图表。

Metropolitan Water District of Southern California (Metropolitan) compared experimental and modeled disinfection performance of a large-scale ultraviolet (UV) disinfection reactor using computational fluid dynamics and irradiance (CFD-i) modeling software. The UV reactor consisted of four, 4-kW lamps mounted perpendicular to flow in a 24-inch diameter reactor at treating 3 million gallons per day (MGD). Validation testing of this reactor was conducted with MS-2 coliphage. Validation tests presented in this paper were conducted with water produced from a conventional treatment plant operating with ozone and biological filtration. Three-dimensional CFD-i modeling of the polychromatic system operating under design conditions (three lamps on, one standby), and using either particle tracking or scalar transport based modeling techniques, predicted MS-2 inactivation within 0.1 log₁₀ of validation results. Future work will develop CFD-I based tools to assist engineers in the design of large UV treatment systems (>500 MGD) for disinfection of filtered surface water. Future work will also investigate the ability of CFD-i modeling to predict disinfection effectiveness under adverse hydrodynamic and water quality conditions. Includes 17 references, tables, figures.