A short critique on biomining technology for critical materials

Abbasi, Behrooz; Harper, Jeffrey F.; Ahmadvand, Seyedsaeid

doi:10.1007/s11274-021-03048-9

Cited by 3 publications

(2 citation statements)

References 43 publications

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“…Additionally, waiting for a period longer than 5 days does not produce further reductions in pH values. This preliminary evaluation was considered important to optimise the acid production process, which is regarded as a crucial step in aligning the technology with the requirements of the industrial sector [39].…”

Section: Discussionmentioning

confidence: 99%

Interaction between a Martian Regolith Simulant and Fungal Organic Acids in the Biomining Perspective

Vezzola,

Tosi,

Doria

et al. 2023

JoF

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The aim of this study was to evaluate the potential of Aspergillus tubingensis in extracting metals from rocks simulating Martian regolith through biomining. The results indicated that the fungal strain produced organic acids, particularly oxalic acid, in the first five days, leading to a rapid reduction in the pH of the culture medium. This acidic medium is ideal for bioleaching, a process that employs acidolysis and complexolysis to extract metals from rocks. Additionally, the strain synthesized siderophores, molecules capable of mobilizing metals from solid matrices, as verified by the blue CAS colorimetric test. The secretion of siderophores in the culture medium proved advantageous for biomining. The siderophores facilitated the leaching of metal ions, such as manganese, from the rock matrix into the acidified water solution. In addition, the susceptibility of the Martian regolith simulant to the biomining process was assessed by determining the particle size distribution, acid composition after treatment, and geochemical composition of the rock. Although the preliminary results demonstrate successful manganese extraction, further research is required to optimize the extraction technique. To conclude, the A. tubingensis strain exhibits promising abilities in extracting metals from rocks through biomining. Its use could prove useful in future in situ mining operations and environmental remediation efforts. Further research is required to optimize the process and evaluate its feasibility on a larger scale.

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Section: Discussionmentioning

confidence: 99%

Interaction between a Martian Regolith Simulant and Fungal Organic Acids in the Biomining Perspective

Vezzola,

Tosi,

Doria

et al. 2023

JoF

View full text Add to dashboard Cite

show abstract

“…Whether it is the acquisition or expression of knowledge information, the essence of this behavior is to realize the interaction of students' knowledge information, the interaction of knowledge concepts and the processing of knowledge. Therefore, the learner's online learning behavior process fully reflects the learner's background, cognitive state and knowledge needs, and is of great value to the learner's personalized learning needs and the provision of learning resources [12].…”

Section: Online Learning Behaviormentioning

confidence: 99%