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Home Archive 2012 № 3 INFLUENCE OF LEACH SOLUTION COMPOSITION ON PROCESSES OF BACTERIAL EXTRACTION OF METALS FROM TECHNOGENIC WASTE I. A. Blayda, T. V. Vasyleva, L. I. Slysarenko, B. N. Galkin, V. O. Ivanytsia
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ISSN 1995-5537

Scientific journal

БІОТЕХНОЛОГІЯ
v. 5, No. 3, 2012


"Biotechnology" journal V. 5, No. 3,
Р. 84-90, Bibliography 26, Russian.
Universal Decimal classification: 546.289:579.002.68

INFLUENCE OF LEACH SOLUTION COMPOSITION ON PROCESSES OF BACTERIAL EXTRACTION OF METALS FROM TECHNOGENIC WASTE

I. A. Blayda, T. V. Vasyleva, L. I. Slysarenko, B. N. Galkin, V. O. Ivanytsia

Mechnikov Odessa National University

The high oxidative activity of aboriginal microbiota, which dominates in the ash-and-slag wastes of energy sector and represents by mesophilic, moderately thermophilic and thermophilic iron-acidophilus sulpho-oxidating bacteria, was defined. Influence of component and concentration compound of leach solutions on efficiency of extraction of germanium, zirconium, nickel, manganese and zinc from coal ash by acidophilic chemolithotrophic bacteria community was studied. The dependence of the extraction of trace amounts of germanium, zirconium and accompanying macrocomponents of investigated raw materials from mineral compound of leach solutions (based on the formulations of culture media 9K, Letena, for iron-oxidizing bacteria) and a power substratum (thiosulfate, thiourea, iron (II)) was established. It was established, that first of all in the solution extracted germanium, nickel and zirconium. The most effective combinations of «mineral components + an energy source» at which degree of metals extraction from coal ash have been reached certain percentages (Ge – 85,0; Ni – 75,0; Zr – 45,9) were defined.

Key words: acidophilic chemolithotrophic sulpho-oxidating bacteria community, leaching solutions, energy sources, coal ash, germanium, zirconium.

© Palladin Institute of Biochemistry of National Academy of Sciences of Ukraine, 2008

 

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Home Archive 2012 № 3 INFLUENCE OF LEACH SOLUTION COMPOSITION ON PROCESSES OF BACTERIAL EXTRACTION OF METALS FROM TECHNOGENIC WASTE I. A. Blayda, T. V. Vasyleva, L. I. Slysarenko, B. N. Galkin, V. O. Ivanytsia

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