The collection will focus on fundamentally new technologies in which waste is sharply reduced and often completely absent; waste disposal directly in the process stream; more complete use of raw materials in metallurgy, petrochemistry. The reader will get acquainted with the projects of enterprises with waste-free technology, with the experience of advanced teams in this area. The applications contain foreign information, interesting figures and facts. The brochure is designed for lecturers and propagandists, students of folk universities, for everyone who is interested in scientific and technological progress.