The book is devoted to the development of methods of chemical and thermal modification of lignocellulosic waste of agriculture, food and processing industry to obtain a wide range of sorbents for environmental purposes. The obtained quantitative characteristics of the sorption capacity of modified materials can be used to create technologies for treatment of wastewater and soil from man-made pollution. The book can be useful for environmental specialists and scientists interested in sorption technologies. This book has been translated with Artificial Intelligence.