Output of arsenic from dumps of plant «Tuvakobalt» by combined method

Abstract

The presented materials of research show the possibility of the output of arsenic from dump sludge cake of plant «Tuvakobalt» through their burning at 800-850 °C in a mixture of with soda and subsequent aqueous leaching into the solution forming of sodium arsenate. Arsenic from the solution can be transferred to the ar¬senic sulphide by known techniques (by means of sodium sulphide, hydrogen sulphide, etc.). Thus the ob¬tained products can be used in practice for as antiseptics in agriculture, in the processing timber; as a biocide in anti-fouling coatings for the navy, hydraulic structures and other constructions operated in the bioaggressive environments