Bacterial and chemical leaching of copper-containing ores with the possibility of subsequent recovery of trace silver

Zhappar, Nariman; Shaikhutdinov, Valentin M.; Kanafin, Yerkanat N.; Ten, Oleg; Balpanov, D. S.; Korolkov, Ilya V.; Collinson, Simon R.; Еркасов, Р. Ш.; Бакибаев, А. А.

doi:10.1007/s11696-019-00688-y

Cited by 13 publications

(4 citation statements)

References 31 publications

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“…It exists mainly in two forms, oxidized cupric form {Cu (II)} and reduced cuprous form {Cu (I)} (Magnani and Solioz 2007). Mineral properties of the material and the process of soil formation determine the total amount of copper in soil (Cornu et al 2017) are the major natural sources of copper-containing soil sediments (Kokes et al 2014;Zhappar et al 2019). At a low concentration, copper used as micronutrient and has several biological roles for the growth and metabolism of plants, animals, and microorganisms.…”

Section: Introductionmentioning

confidence: 99%

Isolation and Characterization of Copper Tolerant Bacterial Species Habituating in Copper Mines and Study of Their Potentiality as a Plant Growth Stimulator

Majhi

Let

Halder

et al. 2021

Preprint

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Copper (Cu) is a vital micronutrient for all living organisms below its toxicity limit. Various industrial activities, mining deposits, excessive use of harmful chemicals, waste discharges, and drugs are the main reason for the emerging copper concentration. Emphases of the current study were to isolate and characterize highly copper-tolerating bacterial (CTB) species from a copper-contaminated site. In enrichment culture techniques, 24 copper tolerant microbial isolates were evaluated and the maximum tolerable concentration (MTC) was determined using various concentrations of copper sulfate pentahydrate (CuSO4.5H2O) solution. Three bacterial strains named GKSM2, GKSM6, and GKSM11 were tolerant to 350 mg/l of CuSO4.5H2O. The 16S rRNA gene sequencing and phylogeny data revealed that these CTB belong to species Bacillus zanthoxyli, Bacillus stercoris, and Pseudomonas alcaliphila species. CTB showed their optimized growth at moderate salt concentration (0.1-0.5M NaCl), temperature range (20-45˚C) and wide pH range (pH 5.0-11). All the strains can produce various Plant growth stimulating (PGS) traits viz., phytohormones (IAA, GA), proline, nitrogen fixation, ammonification, and antioxidant enzymes in presence and absence of Cu2+ stress. The result displays that adsorption of Cu2+ ions evidenced by TEM, SEM, and SEM-EDX analysis.

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Section: Introductionmentioning

confidence: 99%

Isolation and Characterization of Copper Tolerant Bacterial Species Habituating in Copper Mines and Study of Their Potentiality as a Plant Growth Stimulator

Majhi

Let

Halder

et al. 2021

Preprint

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“…The tailings of Serbian copper ore were biologically leached with thermophilic acidophilus bacteria at 40 °C, and the best copper leaching rate obtained was 84% [54]. Analysis of copper ore obtained from the new base of Qarashoshaq in northern Zhylandy (Kazakhstan) showed that the highest extraction rate of copper was 95% by biological leaching and 66.8% by chemical leaching, indicating that the leaching rate of copper was higher for biological leaching [55]. At present, the biological leaching of oxide ores has not been thoroughly studied; however, Pseudomonas aeruginosa, a heterotrophic bacterium, has been used for biological leaching of copper oxide ores and zinc oxide ores, and 47% and 41% of copper and zinc were extracted, respectively [56].…”

Section: Research Hotspots Of Biological Leaching Technologiesmentioning

confidence: 99%

Progress, Challenges, and Perspectives of Bioleaching for Recovering Heavy Metals from Mine Tailings

Gao¹,

Jiang

Mao

et al. 2021

Adsorption Science & Technology

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The accumulation of mine tailings on Earth is a serious environmental challenge. The importance for the recovery of heavy metals, together with the economic benefits of precious and base metals, is a strong incentive to develop sustainable methods to recover metals from tailings. Currently, researchers are attempting to improve the efficiency of metal recovery from tailings using bioleaching, a more sustainable method compared to traditional methods. In this work, the research status of using biological leaching technologies to recover heavy metals from tailings was reviewed. Furthermore, CiteSpace 5.7.R2 was used to visually analyze the keywords of relevant studies on biological leaching of tailings to intuitively establish the current research hotspots. We found that current research has made recent progress on influencing factors and microbial genetic data, and innovations have also been made regarding the improvement of the rate of metal leaching by biological leaching combined with other technologies. This is of great significance for the development of bioleaching technologies and industrial production of heavy metals in tailings. Finally, challenges and opportunities for bioleaching provide directions for further research by the scientific community.

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“…Microorganisms have been frequently isolated from sulphide minerals in dumps, heaps and from flotation tailings are Acidithiobacillus ferrooxidans, Acidithiobacillus thiooxidans, Acidithiobacillus ferrivorans, etc. [6][7][8][9]. Flotation tailings are one of the largest mining wastes from sulphide minerals concentrated by pyrometallurgical process generated during the flotation process.…”

Section: Introductionmentioning

confidence: 99%

“…ferrivorans, At.ferrooxidans, At.thiooxidans, etc.) is of great help to utilize either ex-situ or in-situ bioremediation of heavy metal polluted sites.The kinetics of mesophilic biooxidation of ferrous iron has been studied in our previous work [9].…”

Section: Introductionmentioning

confidence: 99%

A comparative study on psychrophilic and mesophilic biooxidation of ferrous iron by pure cultures of Acidithiobacillus ferrooxidans and Acidithiobacillus ferrivorans

Seitkamal¹,

Zhappar²,

Shaikhutdinov³

et al. 2020

Bul. Kar.Univ. “BioMedGeo” Ser

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Biological oxidation of ferrous sulfate by Acidithiobacillus ferrooxidans and Acidithiobacillus ferrivoransis an important process in the bioleaching of minerals and the treatment of acid mine drainage. The rate at which biooxidation reactions take place is directly related to the microorganisms’growth temperature. Decreasing the temperature of reaction causes both a decrease on the chemical reactions rates and a decrease on bacterial growth. In this study, the effects of pH and temperatures on oxidation of ferrous sulfate by a native At. ferrooxidans and At. ferrivorans strains were investigated. The biooxidation tests conducted in shake flasks at 28 °C and 8 °C and at initial pH 1.6 for 5 days. During the experiment, the mesophilic iron oxidizers were capable of growing on ferrous iron at concentrations of 4.5 g/L at low and optimum temperature. However, the rate of mesophilic biooxidation of ferrous iron was higher than that observed in the psychrophilic biooxidation. In conclusion, during the experiment the At. ferrivorans strain 535 showed high activity in oxidizing at low temperature than other strains. It means even at very low temperatures, microorganisms play an important role in the oxidation and leaching of sulphide ores.

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Bacterial and chemical leaching of copper-containing ores with the possibility of subsequent recovery of trace silver

Abstract: The Open University's repository of research publications and other research outputs Bacterial and chemical leaching of copper-containing ores with the possibility of subsequent recovery of trace silver

Cited by 13 publications

References 31 publications

Isolation and Characterization of Copper Tolerant Bacterial Species Habituating in Copper Mines and Study of Their Potentiality as a Plant Growth Stimulator

Isolation and Characterization of Copper Tolerant Bacterial Species Habituating in Copper Mines and Study of Their Potentiality as a Plant Growth Stimulator

Progress, Challenges, and Perspectives of Bioleaching for Recovering Heavy Metals from Mine Tailings

A comparative study on psychrophilic and mesophilic biooxidation of ferrous iron by pure cultures of Acidithiobacillus ferrooxidans and Acidithiobacillus ferrivorans

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