Compositions of microbial communities in sulfide nickel ore waste piles

Vainshtein, Mikhail; Vatsurina, A. V.; Sokolov, S. L.; Филонов, А. Е.; Adamov, E. V.; Крылова, Л. Н.

doi:10.1134/s0026261711040205

Cited by 6 publications

(2 citation statements)

References 10 publications

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“…Industrial bioleaching at medium temperatures is based mainly on use of mesophilic bacteria A. ferrooxidans which are the most common and classic bioleaching agent. Recent studies showed that natural microbial communities in mining waste contained a wide range of prokaryotes, which were largely preserved under technological conditions of leaching [ 33 ]. The studies have shown that microbial diversity of the microbiota associations without classical A. ferrooxidans can provide even a relatively higher rate of valuable metals leaching.…”

Section: Phylogeny Of Leaching Microbiota and Search For New Leaching...mentioning

confidence: 99%

Current Trends in Metal Biomining with a Focus on Genomics Aspects and Attention to Arsenopyrite Leaching—A Review

Абашина

Vainshtein

2023

Microorganisms

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The presented review is based on scientific microbiological articles and patents in the field of biomining valuable metals. The main attention is paid to publications of the last two decades, which illustrate some shifts in objects of interest and modern trends both in general and applied microbiology. The review demonstrates that microbial bioleaching continues to develop actively, despite various problems in its industrial application. The previous classic trends in the microbial bioleaching persist and remain unchanged, including (i) the search for and selection of new effective species and strains and (ii) technical optimization of the bioleaching process. Moreover, new trends were formed during the last decades with an emphasis on the phylogeny of leaching microbiota and on genomes of the leaching microorganisms. This area of genomics provides new, interesting information and forms a basis for the subsequent construction of new leaching strains. For example, this review mentions some changed strains with increased resistance to toxic compounds. Additionally, the review considers some problems of bioleaching valuable metals from toxic arsenopyrite.

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Section: Phylogeny Of Leaching Microbiota and Search For New Leaching...mentioning

confidence: 99%

Current Trends in Metal Biomining with a Focus on Genomics Aspects and Attention to Arsenopyrite Leaching—A Review

Абашина

Vainshtein

2023

Microorganisms

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“…Evaluation of the biogeochemical activity has showed that under natu ral conditions these microorganisms played important role in leaching of metals from sulphide ores. Similar processes have occurred in the technogenic wastes which de rived from the corresponding natural substrates [16,24,29,41]. The processing of pri mary mineral raw materials in the hostile environment and further accumulation and preservation of generated waste and heaps with changing of temperature, acidity, con tent of high concentrations of heavy metals have made conditions for a wide variety of their own microbiota [16,17,34].…”

Section: Introductionmentioning

confidence: 99%

Composition of aboriginal consortium of microorganisms from coal mines dumps

et al. 2017

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The article presents the results of studies aimed at characterictics of quantitative and qualitative composition of aboriginal consortium of microorganisms from coal mines dumps of Lviv-Volynsky coal-basin with different storage time. The defined qualitative composition of substrates' microbiocenosis does not depend on the storage time, be cause it builds up in a course of substrates' formation and is defined by already estab lished chemical and mineralogical composition of the dumps. It was confirmed that heterotrophic and acidophilic chemolithotrophic bacteria, namely mesophilic and mode rately thermophilic genera Acidithiobacillus and Sulfobacillus, are present in the ab original consortium of substrates from coal mines dumps. Isolation of the acidophilic chemolithotrophic bacteria from substrates with neutral pH (from the dumps under study) proves that spreading of these bacteria is much wider than that of naturally aci dic ecosystems. It was stated that the neutrophilic thionic and sulphate reducing bacteria are present in the composition of the microbial association of the studied dumps. The existence of sporulated "silicate" bacteria capable of breaking quartz in the heterotro phic component of microbiocenosis was also confirmed. The study proved that repre sentatives of different groups of microorganisms of the aboriginal microbiota prevail quantitatively in the dumps with long storage time. This is a consequence of substrates' transformations in a course of storage under the exposure to exogenous factors that, in their turn, leads to a greater display of biocenosis in the substrates.

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Bioleaching of Metals as Eco-friendly Technology

Vainshtein

2014

Current Environmental Issues and Challenges

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Compositions of microbial communities in sulfide nickel ore waste piles

Cited by 6 publications

References 10 publications

Current Trends in Metal Biomining with a Focus on Genomics Aspects and Attention to Arsenopyrite Leaching—A Review

Current Trends in Metal Biomining with a Focus on Genomics Aspects and Attention to Arsenopyrite Leaching—A Review

Composition of aboriginal consortium of microorganisms from coal mines dumps

Bioleaching of Metals as Eco-friendly Technology

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