This handbook describes the application, design, operation, control, and optimization of ozone facilities in drinking water treatment plants.For utilties that either use ozone or are considering its use, this book is a total resource for information about ozone water treatment systems. The book explains why and how ozone is currently being used and presents important design, operation, and maintenance considerations. For laboratories and researchers that are involved with bench- or pilot-testing, the book describes how ozone is used in full-scale installations and describes scale-up issues.Regulatory agencies responsible for enforcement, design review, and inspections of plants that use ozone also will find this book helpful.. The book explains the theory and practice of ozone operation and how ozone disinfection performance is measured, calculated, reported, and optimized.