Metalbearing secondary raw materials, their characteristics, distribution, depositing, processing and treatment; physical and physicochemical treatment methods, hydro- and pyrometallurgical processing of metallurgical wastes; refining of obtained products; ecological and economical aspects of secondary metalbearing materials reuse, present situation in the Czech Republic; heavy metals in the environment, the limit concentration in waters, soils and air pollution, heavy metals in metallurgical operations; treatment of metalbearing wastes on the basis of lead, tin, noble metals, tungsten and their alloys (lead scrap, batteries, anodic sludge, electronical wastes etc.).