Abstract
Isolation and study of the main properties of acidophilic chemolithotrophic bacteria isolated from the waste dumps of fuel-energy complex in Ukraine
Highlights
Ecological niches with high content of sulfur and iron in particular sulfide ores, quarry and mine waters, geothermal zones, tailings, slags and slurries after the extraction and processing of natural ores are the main habitats of acidophilic chemolithotrophic bacteria (ACB)
A large number of Acidithiobacillus ferrooxidans and Acidithiobacillus thiooxidans strains, characterized by a wide variety of properties have been isolated from such ecological niches
Acidophilic chemolithotrophic bacteria isolated from waste dumps by the fuel-energy complex (FEC) of Ukraine, or from waste dumps of Central Enrichment Plant (CEP) of the Lviv-Volyn Coal Basin (LVCB) were studied
Summary
Ecological niches with high content of sulfur and iron in particular sulfide ores, quarry and mine waters, geothermal zones, tailings, slags and slurries after the extraction and processing of natural ores are the main habitats of acidophilic chemolithotrophic bacteria (ACB). From poor natural raw materials, concentrates and industrial waste with a high content of target metals is studied [5–7, 11] This group of bacteria should be present in fossil coals and in the waste dumps from its extraction and processing. The authors [3, 4] obtained data on the presence of chemolithotrophic representatives of microbiocenoses, both mesophilic and moderately thermophilic, in the waste dumps fuel-energy products, as well as a confirmation of their activity This group of bacteria have a big impact on the changes occurring in the technogenic raw materials in the process of stock and storage. Active ACB, in particular specific strains of A. ferrooxidans, can be effectively used for the extraction of metals from waste dumps products by the fuel-energy complex. That could be the basis for new efficient biotechnologies aimed at isolating leaching metals
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