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1Biofuels and Bioprocessing Research Center, Institute of Technical Education and Research, India
2School of Chemistry, Sambalpur University, India
3Upendra Nath College, Fakir Mohan University, India
*Corresponding author: Debabrata Pradhan, Biofuels and Bioprocessing Research Center, Institute of Technical Education and Research, Siksha ‘O’ Anusandhan (Deemed to be University), Jagamara, Khandagiri, Bhubaneswar-751030, Odisha, India
Submission: April 23, 2021; Published: August 02, 2021
ISSN : 2578-0255Volume7 Issue1
Exploitation of bacterial activities in the mineral industries and environmental preservation are gaining much attention. Bioleaching is a useful tool to recover different metals from low-grade ores and wastes. It has proved its benefits in terms of cost and environment. It is applied to the heap operation for the processing of the large volume of different low-grade ores. The techno-economic feasibility studies and flow sheet of different sections must be given top priority during its scale up. Further genetic improvement is proposed for the understanding of the cellular metabolism of the microorganisms for the bioleaching purpose. This helps the industries by opening renewed possibilities for mineral processing technology through improved kinetics and other economic benefits. Spectroscopic technologies like Magnetic Resonance Imaging (MRI) & electron microprobe are important tools to support the dissolution mechanism of heavy metals during bioleaching. Further metal recovery process like solvent extraction and electro-winning have been coupled with the bioleaching techniques develops a comprehensive extractive metallurgy to produce the cathode grade metals.
Keywords: Bioleaching; Heap leaching; Solid wastes; Low-grade ore; Magnetic resonance imaging
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