Bioremediation of a polymetallic, arsenic-dominated reverse osmosis reject stream

Staicu, Lucian C.; Wójtowicz, Paulina; Baragaño, Diego; Pósfai, Mihály; Molnár, Zsombor; Ruíz-Agudo, Encarnación; Gallego, José Luis

doi:10.1111/lam.13578

Cited by 7 publications

(3 citation statements)

References 30 publications

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“…O23S strain attracts much attention. As a result of the study conducted by Staicu et al (2022a), this strain isolated from an old gold mine in Poland was found to have both ars and arr genes. It has been found to be quite effective in bioremediation studies from real industrial wastes rich in arsenic.…”

Section: Growth Under Anaerobic Conditions and In Bsmmentioning

confidence: 97%

Arsenic pollution and arsenic-resistant bacteria of drying Urmia Salt Lake

Haghi

Diznabi

Karaboz

et al. 2023

Front. Environ. Sci.

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Extensive arsenic contamination of groundwater, rivers, and agricultural farms has led to widespread arsenic poisoning and consequent problems associated with health and economy. In recent years, many studies have been performed to understand bacterial arsenic detoxification and metabolism which has paved the way for bioremediation applications. This study attempted to isolate and characterize arsenic-resistant bacteria from the drying Urmia lake. As a result of the 16S rDNA analysis, six arsenic-resistant strains were identified as the members of Shouchella, Salipaludibacillus, and Evansella genera. For some of the strains, the maximum tolerance concentration for either arsenate or arsenite was considerably high, 320 and 16 mM, respectively. All the strains harbored the arsenate reductase gene (arsC). The arsenate permease (arsB) gene was identified in all strains except in strains S1, S12, and E15. The metabolic genes of respiratory arsenate reductase (arrB) and arsenite oxidase (arxA) were identified in none of these strains. This feature of the strains with the arsC gene region can be exploited to bioremediate arsenic from contaminated areas by using a two-step process. The second step can be carried out by the adsorption of arsenite to iron oxide or by precipitation with sulfide. Today, more and more ecosystems are being destroyed due to anthropogenic pollution, and it is important to reveal the negative effects and solutions of this situation on the ecosystems. So, the current study provides a potential source of bacteria for such studies that implement bioremediation practices to prevent arsenic catastrophe in vicinal territories, and reveals arsenic pollution in Urmia lake.

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Section: Growth Under Anaerobic Conditions and In Bsmmentioning

confidence: 97%

Arsenic pollution and arsenic-resistant bacteria of drying Urmia Salt Lake

Haghi

Diznabi

Karaboz

et al. 2023

Front. Environ. Sci.

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“…Staicu et al . (2021) reported the multiple metal(loids) removal processes by Shewanella sp. O23S under anoxic condition, and found adding cysteine could greatly increase the metal(loids) removal percentages through forming metal(loids) sulphides.…”

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confidence: 99%

Microbial interaction and transformation of metals and metalloids

Hullebusch

2022

Letters in Applied Microbiology

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“…Various industrial effluents are characterized by an abundance of metals/metalloids and anionic complexes present in dissolved and harmful form for aquatic and terrestrial ecosystems. In this context, removing some of these components in the form of stable (bio)minerals is regarded as a sound depollution strategy (Staicu et al, 2021 ). Because certain bacteria have enzymatic systems with high affinity for certain metals, these can be targeted even when present in complex matrices and stabilized in biominerals (e.g., Pb in PbS, as per Staicu et al, 2020 ).…”

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confidence: 99%