Direct and Indirect Bioleaching of Cobalt from Low Grade Laterite and Pyritic Ores by <i>Aspergillus niger</i>

Yang, Yuyi; Ferrier, John; Csetényi, László; Gadd, Geoffrey M.

doi:10.1080/01490451.2019.1654045

Cited by 20 publications

(10 citation statements)

References 62 publications

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“…For example, carbonates, oxides, phosphates, and oxalates produced by microbial activities can transform metals from soluble species into the corresponding insoluble compounds via precipitation (Li and Gadd 2017a, b;Peng et al 2018). Oxalic acid is produced by a wide variety of fungi, and this plays an important (Anjum et al 2010;Fomina et al 2008;Gadd 2007;Gadd et al 2014;Kang et al 2019;Nancharaiah et al 2016;Yang et al 2019). Metal oxalate crystal formation has been widely found using Aspergillus species, such as zinc oxalate , lanthanum oxalate (Kang et al 2019), manganese oxalate (Wei et al 2012), and calcium oxalate (Pinzari et al 2010).…”

Section: Discussionmentioning

confidence: 99%

“…Organic acids, e.g. oxalic acid produced by fungi, can also play an important role in the immobilization or biorecovery of metals (Clarholm et al 2015;Gadd 1999;Gadd et al 2014;Mishra et al 2017;Yang et al 2019). Wood-rotting fungi can immobilize toxic metals in a metal-amended substrate by precipitation as metal oxalates (Kaewdoung et al 2016).…”

Section: Introductionmentioning

confidence: 99%

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Biorecovery of cobalt and nickel using biomass-free culture supernatants from Aspergillus niger

Yang

Song

Ferrier

et al. 2019

Appl Microbiol Biotechnol

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In this research, the capabilities of culture supernatants generated by the oxalate-producing fungus Aspergillus niger for the bioprecipitation and biorecovery of cobalt and nickel were investigated, as was the influence of extracellular polymeric substances (EPS) on these processes. The removal of cobalt from solution was >90% for all tested Co concentrations: maximal nickel recovery was >80%. Energy-dispersive X-ray analysis (EDXA) and X-ray diffraction (XRD) confirmed the formation of cobalt and nickel oxalate. In a mixture of cobalt and nickel, cobalt oxalate appeared to predominate precipitation and was dependent on the mixture ratios of the two metals. The presence of EPS together with oxalate in solution decreased the recovery of nickel but did not influence the recovery of cobalt. Concentrations of extracellular protein showed a significant decrease after precipitation while no significant difference was found for extracellular polysaccharide concentrations before and after oxalate precipitation. These results showed that extracellular protein rather than extracellular polysaccharide played a more important role in influencing the biorecovery of metal oxalates from solution. Excitation-emission matrix (EEM) fluorescence spectroscopy showed that aromatic protein-like and hydrophobic acid-like substances from the EPS complexed with cobalt but did not for nickel. The humic acid-like substances from the EPS showed a higher affinity for cobalt than for nickel.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Biorecovery of cobalt and nickel using biomass-free culture supernatants from Aspergillus niger

Yang

Song

Ferrier

et al. 2019

Appl Microbiol Biotechnol

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“…The ability of certain bacteria and archaea to extract metals from ores and concentrates is well known and the basis of commercial metal bioleaching (Schippers et al, 2013;Johnson et al, 2013;Johnson, 2014). Fungi are also capable of metal bioleaching from ores, with secreted organic acids being a key component of the process (Burgstaller and Schinner, 1993;Mehta et al, 2010;Anjum et al, 2010;Biswas et al, 2013;Schippers et al, 2013;Yang et al, 2019Yang et al, , 2020. However, fungal bioleaching has not been demonstrated for Se or Te species, the most important Se transformations being reduction or methylation (Gadd, 1993;Chasteen and Bentley, 2003;Rosenfeld et al, 2017).…”

Section: Composition Of Sulfide Ore Before and After Fungal Growthmentioning

confidence: 99%

“…For example, the wood-rotting basidiomycete Schizophyllum commune can bioweather black slate through hyphal mechanical pressure and biochemical mechanisms such as siderophore, laccase and organic acid excretion (Kirtzel et al, 2020). Aspergillus niger can mediate direct and indirect bioleaching of cobalt from low grade laterite and pyritic ores (Yang et al, 2019(Yang et al, , 2020. Fungal bioweathering, involving both mineral dissolution and biomineralization mechanisms, has also been demonstrated for silicate and sulfide ores (Wei et al, 2012a(Wei et al, , 2013, manganese oxides including birnessite (Wei et al, 2012b), mimetite (Ceci et al, 2015a), and vanadinite (Ceci et al, 2015b).…”

Section: Introductionmentioning

confidence: 99%

Fungal transformation of selenium and tellurium located in a volcanogenic sulfide deposit

Liang

Perez

Zhang

et al. 2020

Environmental Microbiology

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Microbial reduction of soluble selenium (Se) or tellurium (Te) species results in immobilization as elemental forms and this process has been employed in soil bioremediation. However, little is known of direct and indirect fungal interactions with Se-/Te-bearing ores. In this research, the ability of Phoma glomerata to effect transformation of selenite and tellurite was investigated including interaction with Se and Te present in sulfide ores from the Kisgruva Proterozoic volcanogenic deposit. Phoma glomerata could precipitate elemental Se and Te as nanoparticles, intracellularly and extracellularly, when grown with selenite or tellurite. The nanoparticles possessed various surface capping molecules, with formation being influenced by extracellular polymeric substances. The presence of sulfide ore also affected the production of exopolysaccharide and protein. Although differences were undetectable in gross Se and Te ore levels before and after fungal interaction using X-ray fluorescence, laser ablation inductively coupled plasma mass spectrometry of polished flat ore surfaces revealed that P. glomerata could effect changes in Se/Te distribution and concentration indicating Se/Te enrichment in the biomass. These findings provide further understanding of fungal roles in metalloid transformations and are relevant to the geomicrobiology of environmental metalloid cycling as well as informing applied approaches for Se and Te immobilization, biorecovery or bioremediation.

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“…Aspergillus niger is a ubiquitous environmental fungus known for many industrial applications including citric acid production (Jernejc et al, 1982). It also possesses significant biogeochemical properties that enable interactions with metals and minerals such as mineral dissolution and biologically-induced mineralization (BIM), both of which can be mediated by the extracellular excretion of organic acids (Gadd, 2010;Li et al, 2014;Yang et al, 2019a;Yang et al, 2019b). Aspergillus niger is an efficient producer of oxalic acid (H 2 C 2 O 4 ), which can play a critical role in the BIM process for the bioprecipitation of a number of metals from soluble and insoluble sources .…”

Section: Introductionmentioning

confidence: 99%

Monazite transformation into Ce‐ and La‐containing oxalates by Aspergillus niger

Kang

Csetényi

Gadd

2020

Environmental Microbiology

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Summary Monazite is a naturally occurring lanthanide (Ln) phosphate mineral [Ln x(PO4) y] and is the main industrial source of the rare earth elements (REE), cerium and lanthanum. Endeavours to ensure the security of supply of elements critical to modern technologies view bioprocessing as a promising alternative or adjunct to new methods of element recovery. However, relatively little is known about microbial interactions with REE. Fungi are important geoactive agents in the terrestrial environment and well known for properties of mineral transformations, particularly phosphate solubilization. Accordingly, this research examined the capability of a ubiquitous geoactive soil fungus, Aspergillus niger, to affect the mobility of REE in monazite and identify possible mechanisms for biorecovery. It was found that A. niger could grow in the presence of monazite and mediated the formation of secondary Ce and La‐containing biominerals with distinct morphologies including thin sheets, orthorhombic tablets, acicular needles, and rosette aggregates which were identified as cerium oxalate decahydrate (Ce2(C2O4)3·10H2O) and lanthanum oxalate decahydrate (La2(C2O4)3·10H2O). In order to identify a means for biorecovery of REE via oxalate precipitation the bioleaching and bioprecipitation potential of biomass‐free spent culture supernatants was investigated. Although such indirect bioleaching of REE was low from the monazite with maximal lanthanide release reaching >40 mg L−1, leached REE were efficiently precipitated as Ce and La oxalates of high purity, and did not contain Nd, Pr and Ba, present in the original monazite. Geochemical modelling of the speciation of oxalates and phosphates in the reaction system confirmed that pure Ln oxalates can be formed under a wide range of chemical conditions. These findings provide fundamental knowledge about the interactions with and biotransformation of REE present in a natural mineral resource and indicate the potential of oxalate bioprecipitation as a means for efficient biorecovery of REE from solution.

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Direct and Indirect Bioleaching of Cobalt from Low Grade Laterite and Pyritic Ores by Aspergillus niger

Cited by 20 publications

References 62 publications

Biorecovery of cobalt and nickel using biomass-free culture supernatants from Aspergillus niger

Biorecovery of cobalt and nickel using biomass-free culture supernatants from Aspergillus niger

Fungal transformation of selenium and tellurium located in a volcanogenic sulfide deposit

Monazite transformation into Ce‐ and La‐containing oxalates by Aspergillus niger

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