Water is an essential resource, and the engineering systems that ensure its supply and treatment are fundamental to human health, environmental sustainability, and economic development. Water Supply and Wastewater Engineering aims to provide a comprehensive resource for professionals, students, and researchers in understanding the critical principles, practices, and technologies involved in the design, operation, and maintenance of these vital systems.

This book is the collective effort of a group of engineers, academicians, and experts with years of experience in the water supply and wastewater management field. Each of us has brought unique perspectives and expertise to the chapters we have contributed, from foundational principles to the latest innovations in water treatment technologies, sustainable practices, and regulatory frameworks.

In the first part of the book, we focus on Water Supply Engineering, covering topics such as water resource management, water distribution systems, and the treatment processes required to ensure the safe and reliable supply of potable water. We delve into both traditional methods and emerging technologies, ensuring a well-rounded understanding of the subject.

The second part of the book addresses Wastewater Engineering, exploring wastewater collection, conveyance, treatment processes, and disposal methods. Emphasizing sustainability and efficiency, we also discuss advanced treatment techniques, water reuse, and the environmental impacts of wastewater disposal.

Throughout the book, we have combined theory with practical applications. Numerous real-world examples, case studies, and design problems are included to illustrate how these principles are applied in various settings, from urban environments to rural and developing areas. We hope this book can serve as a comprehensive reference not only for students but also for practicing engineers who are involved in the planning, design, and management of water and wastewater systems.

The field of water and wastewater engineering is continuously evolving in response to challenges such as population growth, climate change, and environmental degradation. Our goal is to provide readers with both a solid grounding in established practices and an understanding of the innovative approaches that will define the future of this field.

We would like to express our deepest gratitude to all those who contributed to the realization of this book. From our colleagues and technical reviewers to our students and professional networks, their feedback and support have been invaluable.

We hope this book serves as a useful tool for understanding the complexities and innovations of water supply and wastewater engineering, and that it inspires further research and advancements in these critical areas.