2nd Report of the Commission for the Production of Biological Wastewater Treatment Experiments in the Fields of Irrigation . This is a unique work, which is not just a scientific report, but a real treasure trove of knowledge for everyone who is interested in ecology, water resources and modern methods of wastewater treatment. This collective work, created by a group of experts in the field of ecology and engineering, immerses the reader in the world of complex processes associated with wastewater treatment, and offers practical solutions to the pressing problems facing modern society. The book examines in detail the results of experiments conducted in Moscow aimed at studying the effectiveness of biological wastewater treatment using irrigation fields. The authors share their observations, experimental data and conclusions that can be useful not only to environmentalists, but also to students, researchers and anyone interested in sustainable development and environmental protection. This report will be a useful resource for environmentalists, engineers, students and anyone who wants to understand more deeply how natural processes can be effectively used to solve problems related to water pollution. The topics raised in the book cover a wide range of issues, from the theoretical foundations of biological purification to the practical aspects of implementing such technologies in urban environments. The authors emphasize the importance of an integrated approach to wastewater treatment, which includes not only technological solutions, but also social, economic and environmental aspects. The book raises questions about how to optimize cleaning processes, minimize costs and at the same time achieve high water quality standards. The style of presentation of the authors is distinguished by scientific rigor and accessibility. They skillfully balance between complex terms and comprehensible explanations, which makes the material available to a wide audience. The reader will be able not only to get acquainted with the results of research, but also to understand how these data can be applied in real life. In addition, the book is saturated with graphs, tables and illustrations that help to visualize the material presented and make it more understandable. If you are interested in topics such as ecology, sustainable development, wastewater treatment, as well as you want to learn about modern methods of solving environmental problems, then this report will be an indispensable source of information for you. The book will be of interest to both professionals and amateurs seeking to expand their knowledge in the field of ecology and water resources. In addition, among other well-known works of the authors are studies on the topic of water management, sustainable urban development and wastewater treatment technologies .. These works are also noteworthy and can complement your knowledge of modern approaches to environmental protection. In conclusion, "The 2nd Report of the Commission for the Production of Biological Wastewater Treatment Experiments in the Fields of Irrigation . Moscow is not just a book, but an important contribution to science and practice, which will help readers better understand how to effectively use natural resources and take care of our planet. Do not miss the opportunity to get acquainted with this fascinating and informative work, which can change your idea of the possibilities of biological wastewater treatment and their importance for the environment.