This article is devoted to the consideration of methods for receiving copper powder. The main methods of obtaining copper based on them are analyzed, the possibility of complex extraction of the investigated metal from spent solutions (wastes) of electrolytic production of copper.

The object of the study was water and bottom sediments of the lake Balkyldak of Pavlodar region, contaminated by mercury wastes.The purpose of the work is the creation of innovative cost-effective technologies for deep cleaning of aqueous media from mercury to the level of 1-10 parts per trillion, which will be tested for the cleaning of the lake Bylkyldak facilities in Pavlodar region.