A sustainable vanadium bioremediation strategy from aqueous media by two potential green microalgae

Tambat, Vaibhav Sunil; Patel, Anil Kumar; Chen, Chiu-Wen; Raj, Tirath; Chang, Jo‐Shu; Singhania, Reeta Rani; Dong, Cheng–Di

doi:10.1016/j.envpol.2023.121247

Cited by 16 publications

(1 citation statement)

References 46 publications

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“…* all the biomining experiments made in space are referred to microgravity conditions on the ISS or in simulated environments. d -Estimates according to British Geological SurveyHao et al, 2018;Cockell et al, 2020;Shi et al, 2020;Santomartino et al, 2022;Tambat et al, 2023;Zhang et al, 2023)…”

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confidence: 99%

Unveiling the bioleaching versatility of Acidithiobacillus ferrooxidans

Tonietti,

Esposito,

Cascone

et al. 2024

Preprint

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Acidithiobacillus ferrooxidans, a Gram-negative bacterium thriving in extreme acidic conditions, has emerged as a key player in biomining and bioleaching technologies thanks to its unique ability to mobilize, directly or indirectly, a wide spectrum of elements, such as Li, P, V, Cr, Fe, Ni, Cu, Zn, Ga, As, Mo, W, Pb, U, and its role in ferrous iron oxidation, A. ferrooxidans catalyzes the extraction of metals by generating iron (III) ions in oxic conditions, which are able to react with metal sulfides. This review explores the bacterium's versatility in metal mobilization, with a focus on the mechanisms involved and its encompassing role in the recovery of industrially-relevant metals from complex ores. The application of biomining technologies leveraging the bacterium's natural capabilities not only enhances metal recovery efficiency, but also reduces reliance on conventional, energy-intensive methods, aligning with the global trend towards more sustainable mining practices. However, its use in biometallurgical application poses environmental issues through its effect on the pH levels in bioleaching systems, which produce acid mine drainage that effluents in rivers and lakes adjacent to traditional and abandoned mines. This dual effect underscores its potential to shape the future of responsible mining practices, including potentially in space, and highlights the importance of monitoring acidic releases in the environment.

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confidence: 99%

Unveiling the bioleaching versatility of Acidithiobacillus ferrooxidans

Tonietti,

Esposito,

Cascone

et al. 2024

Preprint

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Role of Extremophiles in Biodegradation of Emerging Pollutants

Chia,

Hadibarata,

Jusoh

et al. 2024

Top Catal

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Emerging pollutants, also referred to as emerging contaminants, are substances that have recently been recognized or are gaining attention due to their potential adverse impacts on the environment, human health, or ecosystems. These pollutants present a significant threat to both environmental and human well-being and are challenging to eliminate using conventional remediation methods. Extremophiles, organisms adapted to extreme environmental conditions like high or low temperatures, high pressure, and elevated salt concentrations, play a crucial role in this context. They produce a diverse array of enzymes capable of breaking down complex organic compounds, some of which remain stable and functional even in harsh environmental conditions, making extremophiles well-suited for use in bioremediation applications. Numerous studies have demonstrated the capability of extremophiles to degrade various pollutants, including toxic solvents, heavy metals, and industrial chemicals. Halophilic archaea, a type of extremophile, have particularly shown promise in degrading emerging contaminants in salt marsh sediments. Despite their potential, there are challenges associated with using extremophiles in bioremediation, such as the limited availability of extremophilic microorganisms capable of degrading specific pollutants and a reduction in enzyme stability when operating outside their optimum range. Nevertheless, ongoing research in this field is anticipated to result in the development of new and innovative bioremediation strategies for effectively removing emerging pollutants from the environment.

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