The approach of the book was to use the concept of "Wastewater Handling Train," starting from collection points, then transportation, processing, reuse, through to handling and disposal. The book contains six chapters. Chapter 1 deals with: types of wastewater, methods of watching and records of saving, types of samples, and vocational safety in the industry. Chapter 2 deals with the connection between waste and public health, discussing types of diseases, their causative organisms, and the methods of the treatment using wastewater treatment units. Chapter 3 discusses collection and transportation issues, types of sewers and their design, and sewage hydraulics. Chapter 4 deals with wastewater treatment, methods and merits. Chapter 5 discusses methods of final disposal, while Chapter 6 includes the laws and legislation regarding wastewater management.