An example of the calculation of the sewage treatment plant of the city . Biological Cleansing" , written by the author's team as part of Ivanov, Mishukov and Protasovsky , It is a unique work ,. which will be of interest not only to specialists in the field of water supply and sanitation , but also to a wide range of readers , to understand the issues of ecology and sustainable development of cities. This work is a real guide to the complex but extremely important topic of biological wastewater treatment, relevant for any modern metropolis. The main idea of the book is a detailed analysis and practical calculation of treatment facilities that play a key role in ensuring the cleanliness of water bodies and public health. The authors undertake a difficult task - to explain how treatment plants function, what methods and technologies are used for biological purification, and how to design such structures correctly taking into account the specifics of a particular city. The reader will be able to learn about different approaches to wastewater treatment, how to choose the best technologies depending on the conditions and requirements, as well as what environmental and economic aspects should be taken into account when designing. The book will be of interest to students studying at the faculties of ecology, engineering and urban planning, as well as to practitioners working in the field of water supply and sanitation .. It can also attract the attention of environmentalists, urban planners and anyone interested in sustainable development and environmental issues. If you are looking for information on how modern technologies can help in solving water pollution problems, this book will be a real discovery for you. Themes, Raised in the book, not only concerned with the technical aspects of the design of wastewater treatment plants , but also broader issues, Effects of Human Activities on Ecosystems , The need for innovative technologies to improve the quality of life in cities and the importance of responsible attitude to natural resources The authors emphasize that biological cleaning is not just a technical process, but an important step towards creating environmentally friendly and comfortable cities where people can live in harmony with nature. The style of the authors is distinguished by clarity and accessibility, which makes complex technical aspects understandable even for an unprepared reader. Ivanov, Mishukov and Protasovsky use many examples from practice, which allows a better understanding of how theoretical knowledge is applied in real life. Their previous work is also noteworthy: they are known for their research in engineering systems and ecology, which adds value to this book. If you are looking for books on ecology, engineering or sustainable development, "An example of calculating a city's sewage treatment plant. Biocleaning” will be a great addition to your library This work will not only expand your knowledge of modern wastewater treatment technologies, but will also inspire a more responsible attitude towards the environment. Read, study and apply the knowledge gained in practice - after all, the future of our planet depends on us!