Institute of Solid State Chemistry and Mechanochemistry (Siberian Branch of Russian Academy of Sciences), Novosibirsk, Russia

N. I. Kopylov, Leading Researcher, e-mail: kopylov_ni@gorodok.net

A brief review of the state of dumps containing arseniccontaining wastes from non-ferrous metallurgy is presented. It is demonstrated that storing, construction of any kinds of depositories for these wastes brings about grand danger for environment. During storage, hypergensis occurs in the bulk; correlation between elements is destroyed; chemical interactions proceed with the formation of arsenic-containing water-soluble phases. The latter phases get concentrated in pore fluids and later on they migrate with drainage water from the dumps into the environment. The toxic danger of dumps for environment is sharply increasing with time. On the basis of available data reported in the works considered herein, it is concluded that any ground disposal of arsenic-containing wastes is temporary and does not eliminate the danger for environment. Because of this, the necessity of extensive use of arsenic-containing wastes from metallurgical industry in national economical activities is substantiated. On the basis of foreign experience and results of home investigations, large-scale use of arsenic-containing products from dumps is proposed for manufacturing antiseptic preparations to treat industrial wood. Another large-scale area of the use of arsenic from metallurgic dumps may be the production of antifouling coatings for the hulls of sea crafts. Works presented in the review demonstrated the promising character of this direction. It is shown that the use of arseniccontaining compounds as biocides for antifouling coatings of the hulls of sea crafts can provide unique ecologically safe removal of arsenic from natural circulation into non-toxic bottom sediments in oceans.

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