The book "Operation of mechanical wastewater treatment facilities", created by the team of authors, is an indispensable source of knowledge for specialists in the field of water supply and sanitation, as well as for students and teachers of specialized educational institutions . This publication immerses the reader in the world of wastewater treatment technologies, focusing on mechanical processes that play a key role in ensuring environmental safety and sustainable urban development. The book deals in detail with various aspects of the operation of mechanical cleaning facilities, ranging from design to operation and maintenance. The authors share practical recommendations and methods that will help not only in theory, but also in practice. They discuss modern technologies used in wastewater treatment plants and analyze their effectiveness, which makes the book relevant for professionals seeking to improve the quality of their services and optimize processes. This book will be of particular interest to engineers, ecologists and utility workers, as well as those involved in the design and operation of wastewater treatment plants. It is suitable for both experienced professionals and beginners who want to deepen their knowledge in the field of mechanical wastewater treatment. Students of technical and environmental faculties will also find useful materials in it that will help them in their studies and future professional activities. The topics raised in the book cover a wide range of issues, including the principles of mechanical filters, deposition and flotation technologies, as well as methods for controlling and managing cleaning processes. The authors emphasize the importance of complying with environmental norms and standards, which makes the book relevant in the modern world, where environmental issues and sustainable development are becoming increasingly important. The style of the authors is distinguished by the clarity and accessibility of the presentation, which makes it easy to assimilate even the most complex concepts. They use examples from practice, which makes the material more clear and understandable. The book is replete with illustrations, diagrams, and tables that help visualize the processes and technologies being discussed. The team of authors working on this publication consists of recognized experts in the field of water supply and wastewater treatment, which adds additional value to the book. Their experience and knowledge, gathered in one edition, allow the reader to get a holistic view of mechanical wastewater treatment and its importance for the environment. If you are looking for information about mechanical wastewater treatment processes, want to improve your skills in this area or are just interested in modern technologies, this book will become your reliable assistant. It will not only expand your knowledge, but also inspire new ideas and solutions in the field of wastewater treatment. Thus, “Operation of mechanical wastewater treatment facilities” is not just a textbook, but a storehouse of knowledge that will be useful for both professionals and students. This is a publication that is worth reading for anyone who wants to be aware of modern technologies and methods of wastewater treatment, as well as contribute to the protection of the environment and the improvement of the quality of life in cities.