本powerpoint演示首先简要介绍了多伦多市四座水处理厂（WTP）之一的F.J.霍根水处理厂。概述了霍尔根水处理厂味觉和气味（T&O）事件的历史和早期预警迹象，以及1999年的可行性研究，该研究考察了不同的治疗方案，该研究还建议对T&O问题采用多种处理方法，包括在一半配备絮凝池的电厂上使用粉末活性炭（PAC），并用950 mm颗粒活性炭（GAC）盖替换无烟煤介质。列出了霍尔根水处理厂使用GAC/PAC的缺点，并提出了涉及臭氧使用的T&O升级的新机会。介绍了臭氧系统的主要优点和设计。

This powerpoint presentation begins by providing a brief overview of the F.J. Horgan Water Treatment Plant, one of four City of Toronto water treatment plants (WTP). The history and early warning signs of a taste and odor (T&O) event at Horgan WTP are outlined, along with a feasibility study from 1999 that examined different treatment options, and recommendations from the study to use a combination of treatments for T&O problems including using powdered activated carbon (PAC) on half the plant equipped with flocculation tanks and replacing anthracite media with 950 mm granular activated carbon (GAC) caps. Shortcomings of using GAC/PAC at Horgan WTP are listed, and a new opportunity for T&O upgrades is presented that involves the use of ozone. Major advantages and design of an ozone system are provided.