EXTRACTION OF RARE AND NONFERROUS METALS BY MICROBIAL COMMUNITIES OF THE ASH FROM BURNING PAVLOGRAD’S COAL
2012; Odesa University; Issue: 3(19) Linguagem: Inglês
10.18524/2307-4663.2012.3(19).92657
ISSN2307-4663
AutoresИ. В. Блайда, Т. В. Васильева, Л. І. Слюсаренко, В. Ф. Хитрич, В. А. Иваница,
Tópico(s)Extraction and Separation Processes
ResumoThe aim of the paper was to study the ability to leach rare and nonferrous metals from the ash from the combustion of Pavlograd coal in the Ladyzhynskaya power plant by microorganisms formed during storage of anthropogenic microbiota. It was found out by atomic absorption spectroscopy that the ash contained copper, zinc, lead, gallium, germanium, tin, vanadium, cobalt, aluminum in industrial concentrations. Studies on leaching of metals from the ash from the combustion of Pavlograd coal were conducted under the favorable growth of mesophilic heterotrophic microorganisms, mesophilic acidophilic chemolithotrophic bacteria and moderately thermophilic acidophilic chemolithotrophitic bacteria. During the study it was showed high activity of lixiviant community moderately thermophilic acidophilic chemolithotrophic bacteria inhabiting the ash of the Ladyzhynskaya TPP regarding germanium, gallium, cadmium and nickel. Almost completely germanium, gallium, cadmium and to 76.6% nickel extracted in solution in mesophilic conditions by the biochemical activity of community of chemolithotrophic bacteria regardless of the source of energy.
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