Removal of arsenic from acidic liquors using chemical and autotrophic and mixed heterotrophic bacteria-produced biogenic schwertmannites

Yaman, Belma Nural; Vatansever, Özkan; Demir, Emir Kasım; Çelik, Pınar Aytar; Puhakka, Jaakko A.; Şahinkaya, Erkan

doi:10.1016/j.mimet.2023.106775

Cited by 2 publications

(1 citation statement)

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“…In this regard, a mixed culture of Acidiphilium multivorum and Acidithiobacillus ferrooxidans has been used in a biomineralization process where iron and sulfate are removed from acid mine drainage as schwertmannite to decrease the subsequent lime consumption and sludge generation (Jin et al, 2020). Similarly, a mixed culture of Alicyclobacillus tolerans and Acidiphilium cryptum was able to produce crystalline schwertmannite precipitates with the potential to remove arsenic from acidic effluents (Nural Yaman et al, 2023). Other applications related to highly impactful topics in material sciences include leaching of rare earths elements (e.g., by Acidomonas methanolica) (Hedrich et al, 2023), and the production of precious metals nanoparticles (palladium, gold and platinum, e.g., by Acidocella aromatica and Acidiphilium cryptum) (Okibe et al, 2017;Rizki and Okibe, 2018;Matsumoto et al, 2021).…”

Section: Biomining and Bioremediation Processesmentioning

confidence: 99%

Acidophilic heterotrophs: basic aspects and technological applications

González,

Vera,

Scott

et al. 2024

Front. Microbiol.

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Acidophiles comprise a group of microorganisms adapted to live in acidic environments. Despite acidophiles are usually associated with an autotrophic metabolism, more than 80 microorganisms capable of utilizing organic matter have been isolated from natural and man-made environments. The ability to reduce soluble and insoluble iron compounds has been described for many of these species and may be harnessed to develop new or improved mining processes when oxidative bioleaching is ineffective. Similarly, as these microorganisms grow in highly acidic media and the chances of contamination are reduced by the low pH, they may be employed to implement robust fermentation processes. By conducting an extensive literature review, this work presents an updated view of basic aspects and technological applications in biomining, bioremediation, fermentation processes aimed at biopolymers production, microbial electrochemical systems, and the potential use of extremozymes.

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