The book "Fundamentals of design and calculation of chemical-technological and environmental equipment . Volume 3”, created by the team of authors, is an important work that will become an indispensable assistant for students, graduate students, engineers and anyone interested in modern technologies in the field of chemical and environmental engineering. This volume completes a trilogy covering key aspects of the design and calculation of equipment used in the chemical industry and environmental protection. In the third volume, the authors focused on more in-depth topics, such as the design of complex systems, the integration of new technologies and innovative solutions into existing processes. The reader will be able to get acquainted with modern methods of calculation and design that take into account not only efficiency and productivity, but also environmental aspects, which is especially relevant in the context of global challenges related to climate change and environmental pollution. This book will be of interest primarily to students and teachers of technical universities, as well as practicing engineers and specialists in the field of chemical and environmental engineering. It is suitable for those who seek to deepen their knowledge in the field of equipment design, as well as for those who are looking for practical solutions to improve the efficiency of production processes. Readers interested in sustainable development and environmental safety will also find much useful information in this volume. The key topics raised in the book are the principles of equipment design taking into account modern safety and environmental requirements. The authors emphasize the importance of taking into account the life cycle of the equipment, from its development to its disposal. This allows not only to reduce costs, but also to minimize the negative impact on nature. In addition, the book explores innovative materials and technologies that can be used to create more efficient and secure systems. The style of the authors is distinguished by clarity and accessibility of presentation, which makes complex technical concepts understandable even for those who are just starting their way in this area. Each section is accompanied by practical examples and calculations, which allows the reader not only to assimilate the theory, but also to apply the knowledge gained in practice. This makes the book not just a tutorial, but a real practical guide for engineers. The book "Fundamentals of design and calculation of chemical-technological and environmental equipment . Volume 3" is a logical continuation of previous volumes that also deserve attention. They discuss in detail the basics of design and calculations, as well as the basic principles of operation of various systems. Together, they form a holistic course that covers all aspects of the design and operation of equipment in the chemical and environmental industries. If you are looking for a high-quality and up-to-date manual on the design of chemical and technological equipment that will help you not only in your studies, but also in your professional activities, then this volume will be a real find for you. It will open up new horizons of knowledge and help you realize the importance of a sustainable approach to the design and operation of equipment in the modern world. Do not miss the opportunity to deepen your knowledge and become part of a progressive community of professionals committed to creating a safe and effective future.