Intensified bioleaching of a spent Co–Mo catalyst through the addition of extracellular polymeric substances (EPSs) and its mechanism exploration

Zhang, Shihao; Chen, Xiaohui; Teng, Shuya; Shi, Gongchu; Cheng, Jian; Zhang, Ning; Shao, Qingxuan; Cui, Yanchao; Wang, Jia; Xin, Baoping

doi:10.1039/d4dt00104d

Dalton Trans.

2024

DOI: 10.1039/d4dt00104d

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Intensified bioleaching of a spent Co–Mo catalyst through the addition of extracellular polymeric substances (EPSs) and its mechanism exploration

Shihao Zhang,

Xiaohui Chen,

Shuya Teng

et al.

Abstract: In the bioleaching process of a spent Co–Mo catalyst, the leaching rate of Co and Mo can be increased by adding an appropriate amount of EPS.

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Unraveling the Potentials of Extremophiles in Bioextraction of Valuable Metals from Industrial Solid Wastes: An Overview

Adetunji,

Erasmus

2024

Minerals

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The continuous dumping of industrial solid wastes into the immediate environment is incommodious since these waste materials cause pollution and serious hazards to human health. In addition, these solid wastes are complex and consist of toxic chemical substances, heavy metals, and valuable metals, hence warranting treatment before disposal. Bioleaching is a green and sustainable technology for the solubilization and mobilization of metals from solid matrices. The leaching efficacy is contingent on the types and physiology of the organisms, the elemental content of the solid wastes, and the presence of appropriate bioprocess parameters at optimum conditions. Extremophilic microbes, including thermophiles, acidophiles, alkaliphiles, and halophiles, are recognized as excellent biological agents for the efficient bioextraction of metals from industrial solid wastes due to their aptitude for survival under harsh bioleaching conditions. Therefore, this review provides insights into the employability of extremophilic microorganisms as a biofactory for the recovery of valuable metals from various industrial solid wastes. More so, it discusses the sustainability of the bioleaching technique in terms of its life cycle assessment (LCA) and techno-economic analysis.

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Unraveling the Potentials of Extremophiles in Bioextraction of Valuable Metals from Industrial Solid Wastes: An Overview

Adetunji,

Erasmus

2024

Minerals

View full text Add to dashboard Cite

show abstract

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Intensified bioleaching of a spent Co–Mo catalyst through the addition of extracellular polymeric substances (EPSs) and its mechanism exploration

Abstract: In the bioleaching process of a spent Co–Mo catalyst, the leaching rate of Co and Mo can be increased by adding an appropriate amount of EPS.

Cited by 1 publication

References 39 publications

Unraveling the Potentials of Extremophiles in Bioextraction of Valuable Metals from Industrial Solid Wastes: An Overview

Unraveling the Potentials of Extremophiles in Bioextraction of Valuable Metals from Industrial Solid Wastes: An Overview

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