Radionuclide biogeochemistry: from bioremediation toward the treatment of aqueous radioactive effluents

Williamson, A.; Binet, Marie‐Noëlle; Sergeant, Claire

doi:10.1080/07388551.2023.2194505

Cited by 3 publications

(3 citation statements)

References 138 publications

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“…MFCs use any substrate as fuel for generating electricity, which is converted into electrical energy from the redox reactions within the chambers (anodic and cathodic) that compose them [ 11 , 12 , 13 ]. However, the electrodes that compose them have been capable of absorbing different types of heavy metals, and the use of microorganisms has also helped reduce the concentrations of these metals [ 14 , 15 ]. For example, it has been shown that Rhizobacteria in MFCs can reduce the high contents of toxic metal ions such as Pb, Cr, Cd, As, and Cr from 100 mgL −1 by 23.86% [ 16 ].…”

Section: Introductionmentioning

confidence: 99%

“…Molecules 2024, 29, 2725 2 of 14 However, the electrodes that compose them have been capable of absorbing different types of heavy metals, and the use of microorganisms has also helped reduce the concentrations of these metals [14,15]. For example, it has been shown that Rhizobacteria in MFCs can reduce the high contents of toxic metal ions such as Pb, Cr, Cd, As, and Cr from 100 mgL −1 by 23.86% [16].…”

Section: Introductionmentioning

confidence: 99%

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Reduction of Toxic Metal Ions and Production of Bioelectricity through Microbial Fuel Cells Using Bacillus marisflavi as a Biocatalyst

Segundo,

De La Cruz-Noriega,

Luis

et al. 2024

Molecules

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Industrialization has brought many environmental problems since its expansion, including heavy metal contamination in water used for agricultural irrigation. This research uses microbial fuel cell technology to generate bioelectricity and remove arsenic, copper, and iron, using contaminated agricultural water as a substrate and Bacillus marisflavi as a biocatalyst. The results obtained for electrical potential and current were 0.798 V and 3.519 mA, respectively, on the sixth day of operation and the pH value was 6.54 with an EC equal to 198.72 mS/cm, with a removal of 99.08, 56.08, and 91.39% of the concentrations of As, Cu, and Fe, respectively, obtained in 72 h. Likewise, total nitrogen concentrations, organic carbon, loss on ignition, dissolved organic carbon, and chemical oxygen demand were reduced by 69.047, 86.922, 85.378, 88.458, and 90.771%, respectively. At the same time, the PDMAX shown was 376.20 ± 15.478 mW/cm2, with a calculated internal resistance of 42.550 ± 12.353 Ω. This technique presents an essential advance in overcoming existing technical barriers because the engineered microbial fuel cells are accessible and scalable. It will generate important value by naturally reducing toxic metals and electrical energy, producing electric currents in a sustainable and affordable way.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Reduction of Toxic Metal Ions and Production of Bioelectricity through Microbial Fuel Cells Using Bacillus marisflavi as a Biocatalyst

Segundo,

De La Cruz-Noriega,

Luis

et al. 2024

Molecules

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“…The choice of substrate depends on the microbial composition of the groundwater and hydrogeological parameters. Hydrophobic complex substrates are used when groundwater flow rates are high [33].…”

Section: Introductionmentioning

confidence: 99%

Simple and Complex Substrates (Sugar, Acetate and Milk Whey) for In Situ Bioremediation of Groundwater with Nitrate and Actinide Contamination

Myasnikov,

Artemiev,

Lavrinovich

et al. 2023

Hydrology

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The complex contamination of groundwater near radioactive waste repositories by nitrates and actinides is a common problem for many nuclear fuel cycle facilities. One of the effective methods to remove nitrates and reduce actinide migration activity is bioremediation through the activation of native microbial communities by soluble electron donors and carbon sources. This work evaluated the effectiveness of using simple and complex electron donors to remove nitrate in the microbial community in an aquifer near the B2 storage of the Siberian Chemical Combine (Seversk, Siberia). The addition of sugar and milk whey led to the maximum efficiency of nitrate-ion removal and a decrease in the redox potential of the system, creating optimal conditions for the immobilization of actinide. Special attention was paid to the behavior of uranium, plutonium, neptunium, and americium under conditions simulating groundwater when sugar, acetate, and milk whey were added and when microbial metabolic products were formed. Neither microbial metabolites nor organic solutions were found to have a significant effect on the leaching of neptunium. At the same time, for plutonium, a decrease in yield was observed when rocks were treated with organic solutions were compared to groundwater treatment without them. Plutonium leaching is significantly affected by rock composition. In rocks with a low clay fraction content, its yield can reach 40%. At the same time, microbial metabolites can increase americium (Am) desorption from rocks with a low clay fraction content. Additionally, particle size analysis was performed using a step-by-step filtration approach, aiming to evaluate the risks that are associated with colloidal phase formation. It was shown that microbiological stimulation resulted in particle enlargement, substantially diminishing the presence of actinides in the form of dissolved or sub-50 nm nanoparticles. This outcome significantly reduced the potential for colloidal and pseudocolloidal transfer, thereby lowering associated risks.

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Study on the prevention and control of uranium pollution by Deinococcus radiodurans overexpressing Cs gene

Jiang,

Chen,

Cheng

et al. 2024

J Radioanal Nucl Chem

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Radionuclide biogeochemistry: from bioremediation toward the treatment of aqueous radioactive effluents

Cited by 3 publications

References 138 publications

Reduction of Toxic Metal Ions and Production of Bioelectricity through Microbial Fuel Cells Using Bacillus marisflavi as a Biocatalyst

Reduction of Toxic Metal Ions and Production of Bioelectricity through Microbial Fuel Cells Using Bacillus marisflavi as a Biocatalyst

Simple and Complex Substrates (Sugar, Acetate and Milk Whey) for In Situ Bioremediation of Groundwater with Nitrate and Actinide Contamination

Study on the prevention and control of uranium pollution by Deinococcus radiodurans overexpressing Cs gene

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