2018
DOI: 10.1080/09593330.2018.1478454
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Recovery of valuable metals from polymetallic mine tailings by natural microbial consortium

Abstract: Possibilities for the recovery of non-ferrous and precious metals from Kapan polymetallic mine tailings (Armenia) were studied. The aim of this paper was to study the possibilities of bioleaching of samples of concentrated tailings by the natural microbial consortium of drainage water. The extent of extraction of metals from the samples of concentrated tailings by natural microbial consortium reached 41-55% and 53-73% for copper and zinc, respectively. Metal leaching efficiencies of pure culture Leptospirillum… Show more

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Cited by 10 publications
(3 citation statements)
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“…Typical examples of indirect mobilization include the oxidation of REE-bearing minerals (Villar & Garcia, 2006;Wong et al, 2002). For instance, Acidithiobacillus ferrooxidans promotes the oxidation of Fe 2+ to Fe 3+ at low pH (Ohmura et al, 2002), which indirectly results in the oxidation of metallic sulfide minerals releasing elements of interest such as REE (Vardanyan et al, 2018). In a comparative study of autotrophic A. ferrooxidans and heterotrophic Acetobacter methanolicus leaching of a zircon mineral, the REE bioleaching efficiency was almost 80% (1.1 mg/h) and 67% (1.4 mg/h), respectively (Glombitza et al, 1987).…”
Section: Microbial Recovery Of Rare Earth Elements 821 Bioleachingmentioning
confidence: 99%
“…Typical examples of indirect mobilization include the oxidation of REE-bearing minerals (Villar & Garcia, 2006;Wong et al, 2002). For instance, Acidithiobacillus ferrooxidans promotes the oxidation of Fe 2+ to Fe 3+ at low pH (Ohmura et al, 2002), which indirectly results in the oxidation of metallic sulfide minerals releasing elements of interest such as REE (Vardanyan et al, 2018). In a comparative study of autotrophic A. ferrooxidans and heterotrophic Acetobacter methanolicus leaching of a zircon mineral, the REE bioleaching efficiency was almost 80% (1.1 mg/h) and 67% (1.4 mg/h), respectively (Glombitza et al, 1987).…”
Section: Microbial Recovery Of Rare Earth Elements 821 Bioleachingmentioning
confidence: 99%
“…Due to the synergistic effect of mixed bacteria, higher bacterial concentrations and copper extraction rates could be obtained in the biological leaching, and the highest copper extraction rate of mixed bacteria (73.7%) was significantly higher than that of any single bacterial culture [27]. One study proposed that the highest bioleaching rate of valuable metals could be obtained using a natural consortium of drainage water combined with iron-oxidizing L. ferrooxidans Teg [28].…”
Section: Ms + 2o 2 !mentioning
confidence: 99%
“…Ore reserves around the world are currently being depleted, with very few new discoveries occurring. This necessitates the search for the secondary sources of metals such as tailings [1][2][3][4], slag [5][6][7][8][9], and electronic waste printed circuit boards [10][11][12][13][14][15][16]. Copper is one of the metals whose ore reserves have been depleted in many areas, with slag reprocessing being common as a way of supplementing the fresh concentrates in smelters [17].…”
Section: Introductionmentioning
confidence: 99%